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Fall in the Perennial Garden

Traditional fall perennials like Sedum, Anemone, Mums, Asters, and Rudbeckia are coming into their own! It's the time of year for a refresh into the new season.

However, there are some other fall flowers you may also want to consider. Let us take a look at the staples in the fall garden and then we can get on with some cool stuff!

Belgian Mums

Mums

Grown for us by a single nursery, they are not just any “Mums” but Belgian mums. Does it make a difference? Yes. Belgian “mums” have much stronger and, more importantly, pliable plant stems. Meaning they do not break when you look at them wrong. They also produce a uniform crown. Don’t forget that all mums are an important fall crop for bees and butterflies.

Red Cabbage Brassica

Ornamental Cabbage & Pansies

Both are waiting for cooler temps before they will show up. Pansies are very cold hardy. We’ve even had potted pansies flowering in January. Cabbage will freeze just like it is and sit like that all winter. Cabbage is an annual whereas the Pansies are semi-perennial – it all depends on how they fill and what the winter is like.

Ornamental Peppers Capsicum

Ornamental Peppers

These have become all the rage. If you have not seen them, they’re worth checking out. They are literally small peppers that come in a multitude of colors.

Swiss Chard

We are going to have some this year – YEAH!! Hopefully, you can get some of them before we buy them all!! This is an ornamental Swiss Chard (yes, you can buy Swiss Chard and Cabbage at the supermarket, but they are just plain old green!) Ornamental Swiss Chard has stems in all shades of red and green with dark green leaves that are thickly veined in white. Very catchy!

Fall Anemone

There are a couple of plants and a few bulbous Anemones that bloom in the spring. However, all the cool hybrids are fall flowering. A couple of our favorites are ‘September Charm (2-3’ tall with pink flowers) and ‘Sweetly’ (from the ‘Fall in Love’ series, these grow 2-3’ tall with dark rose-colored flowers).

Purple Dome Aster

Aster

There are a multitude of Asters. Actually, there were so many, and they seemed so different that now we no longer use the word Aster, the new genus word (for some of them) is Symphotrichum. This is where you will find the “Fall Asters”. All of them will come in about 12-24” and there are numerous colors available. We are rather choosy here and try to pick asters that will maintain themselves. Many of the older cultivars need a trim in early summer to keep them compact. (A friend once told me to mow them down with the lawnmower on the 4th of July. It is advice that I’ve never tried and don’t necessarily recommend, but it certainly gives a strong visual.) We try to only offer cultivars that don’t need that kind of maintenance.

Kickin' Sapphire Aster

The one everyone loves “Purple Dome” with the purple-blue flowers is one that needs a little trim, but the color is very distinctive. We like the ‘Wood’s’ series. They come in several colors and top out around 12” tall and are compact and uniform. We have also been selling the ‘Kickin’ series which is a new set of cultivars, again numerous colors, reaching about 15”. Aster as a group are a crucial butterfly nectar source in fall. You will find Painted Lady’s, Swallowtails, Sulphur’s, and Red Admiral fighting the bees for winter storage!

American Gold Rush Rudbeckia

Rudbeckia

We will say that because we’re on a butterfly tangent these will supply nectar for Silvery Checkerspot and bees. There are some new ones on the market we have been trialing. They are worth checking out for fall. Some are hardy, others are supposed to be hardy. It will probably depend on the severity of the winter. Time will tell.

‘American Gold Rush’ possesses the traditional Rudbeckia daisy-shaped flowers except they are small but way more numerous. These are hardy and have proven themselves. The plants will reach 2-2.5’ and start blooming in late summer and all the way through fall.

There are numerous hybrids of Rudbeckia hirta and Rudbeckia fulgida, and these are the ones who may not be quite as perennial as hoped! However, even as an annual they are worth it for the fall show!

Denver Daisy Rudbeckia

Denver Daisy Rudbeckia

‘Denver Daisy’ is one of our favorite Rudbeckia. It has a yellow flower that has a mahogany center and a brown eye. The mahogany center is quite large and makes for a spectacular show in the fall. This one should definitely be treated as an annual.

‘Prairie Sun’ has 5” golden yellow petals tipped a lighter yellow. These are a hirta variety and should be treated as an annual. ‘Prairie Sun’ will reach 3-3.5’ tall.

‘Gloriosa Daisy’ are annuals coming in at 24-30”. They are yellow with either a red or an orange edge that start blooming in August.

Little Goldstar Rudbeckia

And, from the same breeding as ‘Goldstrum’, comes ‘Little Goldstar’. We have been carrying this one for a while now and it is a fab little plant. Only 15” tall and covered with traditional flowers from mid-summer to fall.

Neon Sedum

Sedum

I saved this for the last of the common fall flowers. Everyone seems to think Autumn Joy is it! It’s not. (Sedum ‘Autumn Joy’ has the orangish-red flower and stands about 2’ tall.) Check out some of these others for fall flash!

‘Brilliant’ and ‘Neon’ have magenta to reddish flower.

Plum Dazzled Sedum

‘Plum Dazzled’ Sedum has plum leaves with raspberry red flowers. ‘Dazzleberry’ has blue-gray foliage with red flowers. Both of these are part of the ‘Sunsparkler’ series. There are several others in the series all with different colored leaves. We like the ‘Sunsparklers’ because of their height – 1-1.5’ with flowers.

‘Mohave Jewels’ also has several varieties in this series with different colored foliage. My favorite is ‘Sapphire’ with purplish-blue leaves and rose colored flowers. (12-15” tall)

Now for the fun part – all the other stuff!!

Solidago

Why don’t you use this more often!?! There are several native species you see blooming along the roadside. There are, also, several species and cultivars available to use in landscapes. All of them get around 3-5’ and have a flashy golden spike on top of them. Some people say the color is hard to place. In the fall garden? Not buying it. Why Solidago? Well, Solidago is the #1 source of food for Honeybees in the fall. Honeybees collect large amounts of nectar for winter food. It is also a nectar source for Sulphur and Painted Lady butterflies.

Autumnale Salsa Helenium

Helennium

I call this my happy plant. It makes me smile even when I am just saying the word. The available colors are best describes as an autumn pallet; red, yellow, and orange. They have daisy-like flowers that point up to the sky, reaching 3-5’ tall and 3-5’ wide at maturity.

Heliopsis

H. annus is the traditional annual sunflower. H. helianthoides is the “False Sunflower”. Much smaller flowers but LOTS of them. Like their cousin, the annual sunflower, “False Sunflower” can get 3-5’ tall. There is a shorter one, ‘Tuscan Sun,’ coming in at about 2-2.5’. All flowers are golden sun colored. Heliopsis is unpalatable to deer and rabbits and is a pollinator for bees and butterflies.

Eupatorium

Eupatorium

There are several natives belonging to this family and only a few cultivars. Eupatorium are deer, rabbit, squirrel, etc. resistant. Eupatorium produces a sap that tastes bad, can be poisonous and exists thoughout the entire plant. (Pointsettia are a Eupatorium) Nothing is gonna take a bite of these and if they do there will not be a second bite! The native eupatorium can reach 5-6’ even up to 8’ – they can get huge. There are a few dwarf varieties that will only reach 3-4’. Try ‘Little Joe’ 2.5-3’, or ‘Baby Joe’ 2.5-3’. Eupatorium flowers are a dirty white to rose red. This plant is a POWER pollinator. Bees, Monarchs, Skippers, Swallowtails, and Sulphurs, numerous moth species, and Sparrows will eat the seeds. This one feeds everybody!

Before we let you go to enjoy Fall – do not forget your fall bulbs! As long as you’re planting, you might as well drop in some bulbs. They will not brighten up a fall display, but they will be worth it in the spring! You will not be sorry when they start to pop up as the weather warms up next year! And, by then your back will not hurt anymore from all this fall planting!  

Ugly Fences (Or Ode to the Clematis)

I have a chain-link fence that I hate. Well, I don’t hate it. It serves the purpose of containing my Corgis outside while I leave the house.  They do not like to be corralled into the house, so the dog door to the porch and the ugly fence keep my little doggos happy. Many years ago, I began obscuring the hideous chain-link fence with shrubs. There’s lilac and Rose of Sharon, but my favorite addition was when I started adding Clematis.

Eicher (American Welsh Corgi) & Greta (Cardigan Welsh Corgi)

I began accumulating Clematis as I traveled in my position for a large plant brand.  At that time, the company I worked for did not offer any Clematis in our product line. So, as I visited customers, I was intrigued by this perennial that could hide that loathsome fence in such a lovely blanket of color.  Nearly twenty years later, I can’t remember the variety of my first Clematis, but I distinctly remember carrying the 1 gallon pot onto the plane and holding it in my lap for the hours-long flight from New Hampshire to Michigan. My first clematis was gifted to me and started my love affair with the bright, big blooms. 

Jackmanii Superba Clematis

To me, the perfect version of Clematis is brilliant magenta (Bourbon) or rich, velvety purple (Jackmanii).  I have planted different cultivars over the years and I never get tired of these colors.  I think my favorite deep pink variety is Viva Polonia.  Finding it tucked away in a display garden was a splendid surprise and caused an urgent purchase. Some people have called it red, but mine has never fully reached what I consider a shade of red, but is a vibrant berry with a contrasting stripe of white down each petal.

One of my favorites over the years has been Pink Mink®.  It doesn’t fit into my idea of what a Clematis should be. The bubblegum pink flowers are smaller than most in my collection, but what it lacks in bloom size, it makes up for in quantity. It grows thick and blooms even thicker to create a carpet of pink over whatever it climbs.  Revisiting that ugly chain-link fence, Pink Mink grew up one side and down the other and looked like I had laid a fluffy pink blanket over the fence.

Pink Mink® Clematis

I have no idea where the blue bell-shaped Clematis came from.  I forgot planting it and I don’t think it thrived for a few years because suddenly one summer it was blooming and I couldn’t tell you a thing about it.  I would have to guess that I bought it on a whim and probably based on the snap decision on the picture on the tag, but it would only be a guess!

As I started out this article, I planned to give a logical, informative argument about adding Clematis to your landscape designs.  I was inspired to write my article after seeing the beautiful pictures in the article in July 2023 issue of The Landscape Contractor.  But as I wrote, I realized I was mostly just gushing about how lovely they are and the different varieties that have won a place in my heart over the years.  

And, is that such a bad way to spend a few minutes on a hot pre-holiday afternoon?

Dr. Ruppel Clematis

So, here’s my quick attempt at the original logical, informative argument…

Why plant clematis when there are so many other climbing plants to choose from? Many other climbing plants can be invasive, like trumpet vine (I’m trying to keep this one off the fence), honeysuckle or wisteria (though some non-invasive cultivars do exist), most Clematis, at least in our area of the country, are not. If you avoid Sweet Autumn Clematis terniflora, there are a lot of excellent non-invasive options in this genus. Nicknamed ‘Queen of the Vines’, it is an incredibly beautiful climbing plant to choose.

Sweet Autumn Clematis

And, I’ll always prefer Clematis over climbing roses. Roses are flashy, but until they can breed them without thorns, they will always be a distant competitor to my beloved Clematis.

If you’re interested in the structures that can help your climbing plants, check out the article on page 24 of The Landscape Contractor magazine.

If you would like to know more about the vines that you might regret planting, including that pesky Sweet Autumn Clematis, check out Holly Christensen’s article, Landscaping Mistakes.

Tie Dye Clematis

If you want to wax poetic about Clematis, come see me sometime!

Marci McIntosh

Babies in the Nursery

If you have seen me around the nursery lately, you might have noticed that I look a little different. That would be because I am currently 9 months pregnant, expecting my first child- a baby girl, due on July 21st. With this article's due date, and my actual due date approaching, I wanted to think of a way to tie my baby to the horticulture industry. Not only would that make this article a memorable keepsake, but also something I could relate to on a personal level. Then it dawned on me, BABY plants! Considering the approaches of seeds, seedlings, and plugs when starting a garden or in nursery production.

Which is better when starting your own garden- seeds, seedlings, or a mixture of both? Well, that depends on how much time and money you have to invest into this project.

If choosing to start with seeds, you will have the benefit of variety. There are endless varieties of seeds available, which would allow you to grow exactly what you want. Seeds are also typically less expensive, so if cost were a factor, seeds could be a little easier on the wallet. However, do consider the added costs of materials needed for seed propagation which could include seeding trays, special tools, and equipment like grow lights (depending on your location).

Another important detail to consider is the time-consuming nature of seeds, and the time it takes to reach maturity on your selected varieties. This timing is crucial to having your crops ready when you want them. Some seeds are quick to reach maturity, such as lettuce and spinach which can be ready in as little as 30 days. Other crops such as tomatoes and peppers can take months to fruit after planting, which makes them a better option to start as a seedling. In this case, knowing your limits and making these choices based on time to maturity will be your best bet.

Lastly, when choosing seed propagation, there also is a sense of pride in growing something start to finish. That feeling of pride is something I have experienced in the past but am now feeling in a way I never thought possible. Starting something from scratch and looking back and saying “I DID THAT” is a very special feeling. Especially in the end when you see your perfect baby- or cucumber, that you grew from scratch.

Starting a garden from seedlings- or transplants, is a much easier route to get the garden of your dreams. There is no shame in letting a professional start your plants off, grow them up and then plant the established transplants in a straight row. Think of this like sending your seeds off to daycare!! The benefits of this include less planning time, less loss, and can give you more predictable results. Timing is still something to consider when planting seedlings, but MUCH less so. Instead of all of the planning of maturation times, you will just need to make sure your seedlings are not planted too late, giving them time to bear fruit by their desired harvest date. A downfall of starting with seedlings can be cost. Generally, the transplants from your local nursery are more expensive than seeding the garden. Keep the cost in mind if this is the route you are considering.

Here at Christensen’s, we do some of our own perennial production. Considering that we are not a farm, or greenhouse, we start all our production from plugs (comparable to transplants). Over the years, through trial and error, I have learned what does, and doesn’t work for us. Cell sizes in the industry range from 128 cell-teeny tiny cells, all the way up to 21 cell- jumbo cells. These individual units are called liners. Over years of experimentation, I have learned that the larger cells- 30c to 21c- work best for me. Depending on the plant, and time of year, I get the best finish out of these. There is a lot of planning when it comes to perennial production. For example, a Nepeta started past Memorial Day can finish off in 4 weeks, whereas an Echinacea started in April, will typically not be available until mid-June. My main tip is to start at your desired finish date and work backwards as to when it should to potted, crop by crop. The plug size and temperature when planting are factors you must consider. Or just come see us for all of your perennials. We’re happy to help!

There are many resources out there to help when raising your babies. For me the best have been “What to Expect When Expecting”, all the wonderful parents in my life, and TikTok. For you with your gardens, there are many seed starting guides, the Farmers Almanac, the Simple, Sensible, Solutions guide from Walters Gardens (for perennial production), and many other excellent books! A trip to the library (or Amazon) is an excellent way to start a garden (or production). 

In conclusion, there are benefits to starting your garden with seeds, seedlings, and a combination of both. As with most things, time, money, and determination are factors that can help make the decision for you. Choose wisely, but just know that like with becoming a parent, there will be much to learn. In my case I am going to go into it with an open mind, taking advice from those around me, while also finding my own way. I have learned that growing my little ‘seedling’ is not easy. In fact, it is the most challenging thing I have done to date. But I know the reward at the end will be the most glorious of ‘gardens’ I could have ever imagined.

Molly De La Rosa Author

It’s Peony Month… YEAH!

Paeonia Peony ITOH Bartzella

You may ask, 'Why?' or perhaps “Do I need a Hallmark card?" No cards are required. And, ‘Why?’, Well, because peonies are about to bloom! Which peonies? – ALL the PRETTY PEONY!!

I have written a lot of articles in my life, but I do not usually jump up and say me, me, me please, pick me. But an article about PEONIES?!? – Yes, please. They have always been my favorite. The flower is massive, and the fragrance is sweet (it is also one of the few smelly plants that does not give me an instant allergy headache!). I cut them and enjoy them inside by the bucketful. I may end up with a few ants indoors – but who cares, it’s worth it for peony flowers! And, well, they are just ants.

We grow our own peonies at the nursery, and they are quite impressive! (...If I may say so myself.) The production crew pots them up in the fall and they typically root out before dormancy. In the spring, they POP! We not only grow peony, but we grow several types of peonies.

You all are used to the common herbaceous peony (Peony lactiflora). Usually about 2.5’ and they can easily get to 3’ across. The varieties we carry are typically double-flowering cultivars. However, there are a few we offer that are single. I like single ones but prefer – as will most of your customers - the double flowering cultivars. There is no doubt the doubles put on a show.

Felix Supreme Peony

Sarah Bernhardt Peony

Some of my favorite double flowering cultivars are not only old cultivars but they are still some of the best (they are also reasonably priced, they aren’t “fancy pants” peonies, you know, ones that will cost you your first child!). ‘Sarah Bernhardt’ (double pink), ‘Duchess De Nemours’ (double pink), Felix Supreme (double red). The list goes on. There are at least 6 cultivars in stock, and I know one of them is ‘Krinkled White’ (single white flower). Herbaceous peonies will go downhill by mid-summer and the leaves look quite ratty. When placing an herbaceous peony make sure it can be seen in all its glory through May and then maybe something like a rose to cover them up for the rest of the year.

Bartzella Itoh Peony

But the production crew does not stop there. No, they have added Itoh Peonies to their production list. A totally different animal than an herbaceous Peony. Itoh’s are a cross between an herbaceous peony and a “Tree Peony” (they are known as “Intersectional” Peony – in case you were wondering). Why would you ever want that – well Itoh’s form a semi-woody stem that is able to hold up the huge flower (both come from the “Tree” Peony (Peony sufferticosa), and it also has and produces herbaceous stems – so if it dies to ground no problem. I have several at home. I do not cut them back until spring and then only to the buds on the woody stems. Every year they get bigger and bigger as new herbaceous stems join the 'club'. Believe it or not, they look more and more fab every time I see them. The easiest to come by is 'Bartzella'. It has a semi-double to double yellow flower that can be 6-8” in diameter. ‘Morning Light’ has a semi-double fuchsia flower. On the upside the plant flowers for longer period as side shoots will also flower and the colors cannot be found in P. lactiflora. (there aren’t even semi vigorous yellows in herbaceous Peony.) The foliage is very clean and lasts all year and when it blooms it is covered with flowers not only on the top but also on the sides. The only thumbs down I would give the Itoh cultivars is like a “Tree” peony the flowers are not cuttable. Vase life is only hours!

I can’t let you go just yet because although I no longer have much to do with perennials and even less on production I know a secret. There are – are you ready for this – “Tree Peonies” in stock. Yeppers. True “Tree” peonies are a rare find. They are incredibly hardy with massive flowers held up by woody stems. The group we have is an “assorted” color collection. But it doesn’t really matter because they are, well, not only Peonies but they are “Tree” Peonies and……. IT IS PEONY MONTH – YEAH! 

Krinkled White Peony

A couple of other quick notes about peonies… They can live 100+ years (all peonies can!). They THRIVE in the cold. If you want to see some spectacular ones, go to Alaska! There are 11 different flower types – from single to lotus, hundred proliferate, golden circle to bombs! They like well-drained soil and if you feel like it, throw some fertilizer on them after flowering and in the fall (you can do it in the summer also). Surprisingly, unlike most plants that put on such a huge, spectacular flower they need little in supplemental feeding. I do not feed mine but occasionally I dump some compost or peat around them (depending on whether I am feeling generous!). 

All peonies prefer full sun. From experience, I can tell you my herbaceous peonies are not flowering as well since the tree started giving them shade – I will be moving them this year. My Itoh peony gets AM sun till about noon then they are in shade – not dark but shade from a massive Maple tree. Doesn’t bother them a bit. They always have tons of huge flowers. Tree Peony require full sun and never get cut back – Tree peonies are a woody plant.

Rachel Peony

Kim Roth Byline

A Total Eclipse of a Plant

Just in case you haven’t heard about it, today is the day of the 2024 Total Solar Eclipse. We would like to think that our newsletter is so good that you feel it’s the only source of information you need, but that would mean you are just now finding out it is going to get dark this afternoon! Our main customer base is not in the arc of totality. I believe we are only going to hit 97%. So, for us, it’s mostly been business as usual. A couple of weeks ago, I heard that some of our customers are expecting an influx of people into their area of up to 2 million! There have been a lot of recommendations in the news on how to best enjoy this rare event in our area. I hope that you make the best of it. 

But since we’re in the business of plants, I’d like to ask you…
What would you consider a “Total Eclipse of a Plant?”

Many traditional shade genera have eclipsed themselves and have added sunbathing to their abilities. (Would we consider that a lunar eclipse of a plant?) Hosta have been a staple in the shade garden for years but nowadays you can put them in the sun! This means that the bed that goes along the house (typically in shade) and out to a point in the yard (typically full sun) can have matching plants in both the  sun and shade! As a rule, green, chartreuse, or golden-leaved varieties tolerate the sun better than the blue or white variations. Choose favorites like August Moon, Guacamole, Patriot, Paul’s Glory, Stained Glass and Sum & Substance. Hostas, like Astilbe, Heuchera, Hellebore’s, and other shady plants that can tolerate the sun, do require more watering if placed in a sunny location.

Solenia & Double Delight Begonias Proven Winners

In the ever-changing annual market, they have bred for sun tolerance in Begonias. In recent years, Proven Winners has brought on the Double Delight and the Solenia Begonias. Both series are recommended for sun to part sun. They aren’t recommended for shade at all!

But my question is, “Why?”  So many plants are sun tolerant already.  Shade varieties are the minority and need to be sought out for troublesome spots in the landscaping.  Where are the shade-tolerant Coneflowers? How about a good tall shade-loving Ornamental Grass? Why are we breeding (in my opinion) in the wrong direction?

David Austin Emily Bronte Rose

On the other side of the moon, are there sunny plants eclipsing themselves by taking some shade? Who is trying to bring the bright colors of roses into the dark corners of the garden? David Austin, that's who. His English rose collections have some full sun roses that will take shadier locations. Some of Dave’s roses only need 4-5 hours of sun. Ironically, one of them is called “Bring Me Sunshine”.  They are a step in the right direction of bringing more plants over to the shady side. 

Now, that’s what I call a total eclipse of a plant!

Looking for more options to keep continuity between sun and shade? Check out our resources on the website or give us a call. We are happy to help!

Marci McIntosh

Tuck In Your Perennials for a Long Winter’s Nap

In late fall, besides the trees changing colors, you will also notice a change in your perennials. In this article, I would like to discuss fall perennial practices. Topics will include fall cleanup, which perennials should be cut back vs. which should not, perennial varieties that provide habitat for local wildlife, and how we close up the perennial greenhouses in the nursery. These tips should help with the overwintering process.

Let’s start in the landscape. When the temperature drops, it is wise to consider a fall cleanup. Cutting back your perennials in the fall prevents winter damage and is helpful to reduce the chance of infection. Most perennials can be cut back for the winter months. I would recommend cutting things like Hosta, Daylily, Nepeta, Peony, Phlox, and Salvia 1-2 inches from the ground. You can use pruners to cut them back by hand, but if you do, be sure to dip them in alcohol to kill any disease that may be spread through using the same tools on multiple plants. Some landscapers even cut back their perennials with a weedwhacker! Just make sure you clean up the debris so they will not be subject to any disease.

On the flip side, there are a few arguments for leaving some perennials in your garden alone. To protect the habitats of birds, and beneficial insects, you could consider not cutting Rudbeckia, Echinacea, Eupatorium or perennial sunflower. These seeds will provide food throughout the winter. If your home is close to wooded areas, meadows, or contains a brush pile, your garden may be even more habitat friendly. Some perennials that I would not cut back in the fall would be Asclepias, Ferns, Heuchera, and Dianthus. This is to protect the crowns during the harsh winter. Perennials are more cold-hardy when their stems are left intact. These stems can trap in snow, and work as an insulator for their crowns. A quick clean-up in the spring, and these will be just fine. The last reason why I would consider leaving some perennials be, would be their winter interest. Some stuff just looks awesome covered in snow! Species with stiff stems, or flat or cone-shaped dried flowers have a great winter look! Things like Sedum Autumn Joy, Ornamental grasses, or Echinacea Purpurea add to a garden’s winter beauty!

Here in the nursery, we do a few things to protect all our stock, including perennials from the harsh winter cold. Firstly, all of our material is placed in a hoop house (or a block that will ultimately become a hoop house). These “houses” are covered in opaque plastic. The covering of the perennials tends to happen a little quicker, as we have greenhouse structures- with doors, allowing us to still access the material. The benefit of covering early is the ability to control moisture. Too much, or too little moisture in the fall can contribute to the livelihood of potted material come spring. Another tip I have learned in my years in the nursery, is using items like Stella D’ Oro, or Hosta Patriot to act a barrier around more sensitive groups like Heuchera and Dianthus. 

It is also not uncommon to line an entire house with some of those winter tolerant varieties to both save space, and act as a buffer for other material. We also have one heated structure that we use to protect our grasses (mainly Miscanthus, and Pennisetum varieties), from ever freezing. By keeping minimum heat on our grasses, we are ensuring a healthy, happy grass come spring.

Whether you are overwintering perennials in your landscape, or at your nursery there are many factors to consider. Moisture, temperature, snowfall, and sometimes just plain old luck are all factors that will determine how your perennials fare over a long winter. Keeping in mind potential winter damage, bird and insect benefits, and most importantly, what’s best for the plant, will ensure a seamless transition to the brisk winter days! Happy spring clean ups!

Molly De La Rosa Author

Don’t Forget Fall for Perennial Color

What is more beautiful than Michigan in the fall? The colors around this time are brilliant! What can you do to bring that fall color home? You can consider some stunning fall-blooming perennials. One often overlooked aspect of perennial gardening is planting varieties with different bloom seasons- including fall. This is important because perennial blooms often have a short life span. Sometimes as short as two weeks! By keeping the seasons in mind when planting, you can ensure a captivating landscape with showy perennials all season long. Let me highlight my favorite fall-blooming plants and why they should be added to your next project.

Let’s start with an obvious one. An oldy but goody- the fall mum. Mums are perfect for fall because they bloom later in the season-August-October. This is usually around the time other perennials just finish their bloom cycle. Although there is debate on whether mums are perennial (best luck when insulated in the ground), they are also used in pots, or on porches for those spooky fall months. If dead-headed, you could extend the life of your mums to last the whole fall season. Available in red, orange, yellow, purple, pink, and white, fall mums will be arriving here at Christensen’s at any moment.

Another fall favorite is Anemone. Most Anemone varieties take some time in the spring to show any growth, so if you have some in the ground, do not fret if you do not see growth right away. There is an exception for the Anemone Sylvestris which is a spring blooming variety. The late bloomers don’t show color until around August and last through the fall. Varieties like ‘September Charm’, ‘Elfin Swan’, or ‘Robustissima' are a great choice. Ranging in color from white, pink to red, with adorable Daisy-like flowers, these are a perfect choice to fall.

Asters are another perfect option if you are looking for fall color. There are two different types of Aster- New York, and New England varieties. In general, New York Aster are shorter with thin  

stems and smooth leaves. The New England varieties have more full/dense flowers, with thicker stems and hairier leaves. Both are an excellent choice for fall, although I tend to favor the New England varieties like Purple Dome, and the Woods series. Asters will give you fall color with little to no hassle making this a great option.

Clematis Terniflora- or Sweet Autumn Clematis is my absolute favorite. This bushy beauty is the last to bloom of the Clematis. They have a plethora of dainty white flowers, accompanied by dense green foliage. These beauties are perfect for a fence, or trellis and are extremely vigorous- they can grow up to 30 ft. long! I would highly recommend checking out this variety, it is perfect for some late-season interest.

The last plant I would like to highlight is Perovskia (Russian Sage). Perovskia comes in all shapes and sizes. Over the years, we have trialed many varieties to determine which can withstand the heat. One of the best varieties out there is the Perovskia Blue Jean Baby. Growing to 3x3 ft tall and wide, this one is great because it maintains it shape, and doesn’t get too floppy. These lavender flowers and silver foliage last all the way through fall. They also have a pleasant sage-like smell. Find varieties like Blue Jean Baby any time at the plant center.

Just because summer is ending, doesn’t mean there aren’t endless options for fall perennials. Mums, Anemone, Clematis Terniflora and Perovskia are just the start. Other great options are Rudbeckia, Agastache, and Sedum. These options will give you stunning fall color before the cold weather arrives. Please consider these fall options for your landscape needs!

Molly De La Rosa Author

New Favorites in Perennials, Grasses & Shrubs

Puffer Fish Hydrangea by Proven Winners

Welcome back – I hope that everyone had a great holiday. Whew! Spring is finally over! For me, summer is a time of slight relaxation. 2023 is humming along and I have a month until I must start 2024. (Let’s not think about that!).

I wanted to check with everyone and make sure you all saw some of the new plant varieties at the nursery – if not, come on in as there are more newbies here and incoming.

There are a couple of new plants that I am excited about. Of the hundreds of new cultivars every year it is hard to know what to choose. Sometimes, I throw dice, sometimes I look at the magic 8-ball, and sometimes it has to do with a catchy name (I am a sucker for a catchy name!). Then I do some research and decide if the name is catchy enough! Check some of these out:

First off, we have 2 new ferns – are you ready? “Godzilla” and ‘Metallicum’. In this case, it was the names!! I was never a fan of Metallica (nor any of those big-hair bands!) but Godzilla is not only a great movie but also a great song (Blue Oyster Cult). ‘Godzilla’ is thought to be a cross of pictum (“Painted Fern”) and felix femina (“Lady Fern”). It has the upright habit of a lady fern and the colorful foliage of a painted fern. ‘Metallicum’ is an older variety but returning to the market. Nearly identical to a painted fern this one has redder coloration.

Holy Smoke Andropogon Grass

I have a couple of newer grasses this year, as well. My favorite is the Andropogon gerardii cultivars. Check out ‘Holy Smoke’ (Cheech and Chong movie ??), ‘Blackhawks’ (again with the movie?), and Red October (another movie!). ‘Holy Smoke’ and ‘Blackhawks’ both are going to be 4-5’ tall and ‘Red October’ is a dwarf coming in at 2-4’. All 3 are native prairie grass and rock hardy. All 3 also have purple-green leaves and get varying shades of red from mid-late summer through fall.

Puffer Fish by Proven Winners

I also have a couple of new Hydrangeas! Please don’t tell Chris!!! They are a secret. The one I am most excited about is Hydrangea paniculata ‘Puffer Fish’, “a Bobo on steroids”! It has white flowers that age lime and pink. They will typically send another flower at this same time and rebloom over top of older blooms. It gives the effect of double flowers – very showy. It seems everyone likes the compact habit of the ‘Tuff Stuff’ so take a look at this one ‘Pop Star’ . This one is from the Endless Summer people. This is a typical blue or pink lacecap (macrophylla). However, ‘Pop Star’ is far more compact (and looks far denser) than the traditional ‘Endless Summer’. Its biggest claim to fame is that it reblooms much faster than a traditional ’Endless Summer’.

Endless Summer Pop Star

Unfortunately, I haven’t been able to get my hands on Jeffery’s Weigela ‘Bubbly Wine’. If you were unaware, Jeff Good is now the patent holder of Proven Winners® Weigela ‘Bubbly Wine’. I will let him tell you all about it. I on the other hand will tell you about a relative of Weigela ‘Midnight Wine’ with darker, shinier burgundy leaves and a 12’ tall about 3’ wide habit. W. ‘Midnight Wine Shine’ is also much denser. Finally, W. ‘Very Fine Wine’ is a dwarf – 30x30” with better hardiness and heavier rebloom.

Midnight Wine Shine by Proven Winners

Before I let you go – let’s talk Ilex crenata ‘Sky Pencil’ I have not grown this personally and we have not had it at the nursery before. Everyone is yelling at me about this plant. Everyone wants it and I keep saying it is not hardy enough for us, you keep saying it is! I have special ordered this plant in the past and those that have put it in the landscape have told me they are hardy. So, this year I will stock a few. Ilex crenata ‘Sky Pencil’ is a female ilex and will need a pollinator to bloom (any ilex that blooms at this same time will work.) ‘Sky Pencils’ get to be about 6-8’ and 2’ wide – yes, with a very columnar habit. It is a very dense tightly branched shrub. Considered a solid zone 6 possibly a zone 5 – it may all depend on the winter. Berries or not, it is a good-looking plant!

Have you tried these new varieties? Let us know what you think of them! We welcome your feedback on the plants we stock.

I hope to see you around the plant center, checking out all the new stuff!

Kim Roth Byline

Where Have All the Flowers Gone?

Tulips and Daffodils

I am missing flowers (both literally and emotionally).

How can I work for a plant nursery and have zero blooms in my yard in the middle of summer? (Maybe because I work for a plant nursery?) I get so excited at the beginning of the season with all the pretty things coming in that I take them all home and plant them. Tulips and Daffodils, Hellebores, creeping phlox’s, Dicentra. Stunning. And then what happens? After the blooms fade and the ephemerals die back, I end up with a lot of green. And then… nursery life goes into full swing and by the time I get to slow down and catch my breath, it is mid-summer.

Rudbeckia Goldsturm

Rudbeckia Goldsturm

Where is my color? I need plants. Taking a walk through our perennial lot I notice all the plants that are in full sun with beautiful flowers. I want that! Easy choices are the Rudbeckias. Echinaceas, and Hemerocallis. But what are some less obvious selections? My flower beds have some time in the shade, so in order to get the best show of color, I need varieties that can handle both. So, on my walk, I took a few notes.

Rozanne Geranium

Geranium Rozanne

Geraniums are a good choice. Full sun or part shade, “Rozanne” can be a good rambler. I need to fill in some space and I know she’s about 20” tall by 28” spread. Very low maintenance and long-lasting blooms throughout the whole season can guarantee a nice show of color through these dog days of summer.

Astilbe Vision in Red

Astilbe chinensis Vision in Red

Astilbe’s have always been one of my favorites and we offer a wide array of sizes and color. I’m a big fan of their fluffy, showy flowers. Although we have them in full sun, Astilbe’s actually prefer a bit of shade to cool them down after a long hot day.

Chelone Hot Lips

Chelone Hot Lips

Our Chelone “Hot Lips” are just about to pop. 2’-3’ feet high and a 1’ spread, these are great to add a backdrop or color to a dull corner. These will be perfect for this time of year! They can grow in drought conditions until established or they can grow in bog or rain gardens. They are low maintenance and will handle the full sun or partial shade.

Heuchera Midnight Rose

Heuchera Midnight Rose

Heucheras, I think, are going to be a staple. With many varieties to choose from, they are a great, easy way to tie any color combination into the landscape. Different heights and sizes will be perfect to tuck in around the taller plants. And again, heucheras prefer part shade, can handle sun, like it a little dry. Perfect for my needs!

There is a theme here- low maintenance and lots of color!

Lamium Orchid Frost

Lamium Orchid Frost

And finally, ground cover! Of course, some of that “green” in my yard are weeds. Since I really don’t have a lot of time to throw down mulch every year in the spring I’m going to have to plant something. We have lots of choices here at Christensen’s, however, I have found that Lamium is a great choice for spreading. Vigorous but not invasive, the two-toned foliage is striking and can fill in quickly throughout the season. If I was just looking for a colorful addition, I'd go with 'Orchid Frost'. But, I’m thinking the 'White Nancy' may be a great addition to brighten up and throw some definition into the mix.

I now have a few choices. But there are so many more! Seriously, it’s like choosing a paint color. I know if I took another walk through the perennial lot or into the Hosta House I will have a whole new set of plant varieties, colors, and textures to take home and play with! The choices are plentiful!

Joanna Whitt

Meet the Perennial Branch of Our Family Tree

Molly De La Rosa at Christensens

Christensen’s Plant Center has a wide range of departments. One of them being the Perennial Department. Known to most as “The Perennial Girls”, we are the group that receives, grows, and maintains the stunning perennials you see around the nursery. This includes the beautiful material on the Perennial Lot, roses, grasses, and more! I'd like to introduce you to the Perennial production department, and all that goes into ensuring you have the best possible perennials to meet your landscape needs.

Molly Checking the Perennials

Some of you may not know, but as well as bringing in perennials fully grown plants off trucks, some of the perennials you find around the nursery are produced right here on our property. Our “west” location has greenhouses that switch over from winter storage to perennial production as the weather breaks. Spring is our busiest time. We spend our weeks potting up as much as possible, so that come summer, we have plenty of dazzling product. We grow a wide range of perennials, grasses, and even some shrubs. This spring, we even potted up some Boxwood varieties with big hope for success!

Perennial Team Potting at Christensen's

Soil mixes (which have been trialed over time), pot sizes and types, and water needs are all things taken into consideration in the production department. Hemerocallis Stella, Hosta Patriot, Heuchera Palace Purple, and Nepeta Walkers Low are all production favorites. These staples are always growing in production as a backstock to ensure that we always have some on hand. With the inventory shortages industry wide, this back stock can also come in handy when large quantities are unexpectedly needed.

Sarag and Britt in the perennials

Aside from the staples, we also grow some specialty items such as Peony, Dianthus, and other “funky” varieties. These diverse items are some that we have trialed over time and have proven to do well with. Being able to provide what is needed as availabilities change, is a huge benefit to the Production team!

Perennial Girls Tagging at Christensen's

Perennial production is a flexible department, that can adjust to both industry and customer needs. We work hard to grow and maintain our perennials to ensure that we have a fabulous product year-round! Head over to the “Perennial Girls” for all your perennial questions and needs. 

Molly De La Rosa Author
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