Keystone Natives for the Food Web

I have been reminded over the past few weeks about about the importance of keystone natives. There is a growing body of research that touts the benefits of keystone species of trees, shrubs, wildflowers and grasses to the food web. According to Doug Tallamy, landscapes without keystone plants will support 70–75% fewer caterpillar species than a landscape with keystone plants, even though it may contain 95% of the native plant genera in the area. Keystone plants must be included in your native garden design.

Take a look at Doug Tallamy’s book, Nature’s Best Hope: A New Approach to Conservation that Starts in Your Yard for more data.

The food web includes, plants, insects, pollinators, birds, lizards, toads, frogs, and mammals, from rodents up through bears.  Each is reliant on the other for their survival. Tallamy focuses much attention on trees that support the food web such as oaks, cherry, cottonwood, willow, and birch.  However, there are many native perennials that are also key components of this food web. To provide a solid foundation for a healthy food web in your garden, start with this list of native wildflowers to include in your landscape:

Goldenrods (Solidago sp.)

These summer blooming wildflowers with bright yellow flowers can be striking in the landscape. However, they have a reputation for causing allergies. In truth, this is unlikely because goldenrod pollen is large and heavy and is not carried by the wind. Rather, it is giant ragweed that is spreading pollen through the air at the same time. The plant is insect-pollinated by many wasps, moths, beetles, honey bees, monarch butterflies and other beneficial pollinators searching for a sip of nectar.  In total, 11 specialist bees and 115 different caterpillars need these plants. There are around 50 species of insects with immature forms that feed on the stems of goldenrod.

I like Solidago rigida, Solidago nemoralis, Solidago ‘Wichita Mountains’, Solidago canadensis ‘Golden Baby’, and Solidago ‘Fireworks’ for sunny areas. For shade, I choose to plant Solidago odora, Solidago ulmifolius or Solidago caesia.  It is safe to say that goldenrods are powerhouse plants that deserve a place in your native garden.

Rigid Goldenrod with red switchgrass

Asters

A diverse genus that supports 112 species of insects, asters are a valuable late-season (September – November) source of pollen for bees and nectar for bees and butterflies. During the summer, the asters are host plants to the caterpillars of some of the crescent and checkerspot butterflies. As summer wanes, asters start blooming with colors of white, purple, and pink depending on the species.  Fall provides a unique challenge for pollinators and asters help with both migration and overwintering butterflies and bees. 

A few of my recommended forms are Aster oblongifolius ‘Raydon’s Favorite’ and ‘October Skies’, Aster novae-angliae varieties, Aster laevis and Aster ericoides ‘Snow Flurry’ for sun.  In a shady area, try Aster divaricatus ‘Eastern Star’, Aster cordifolius, and Aster macrophyllus.

Aster ‘Raydon’s Favorite’

Sunflowers (Helianthus sp.)

There are eleven species of sunflower recorded in Kansas. These wildflowers are not usually fit for a formal garden setting, because they spread vigorously by seeding and rhizomes.  They have a tendency to push out other desirable plants.  However, they support 73 species of insects, so we maybe need to find a place for them. 

I’m not referring to the large-headed annual cultivars you see growing in a field, but rather the true native perennials with bright yellow flowers seen growing along the roadside in the late summer and early fall.  Plants provide lots of nectar and pollen, and the seeds are eaten by many birds and other wildlife. I would encourage you to try a few sunflowers in the peripheral areas of your yard where they can spread out and have room to roam. 

Maximillian Sunflower and Big Bluestem

Milkweeds

Monarchs are in peril. Milkweeds are one of the answers to reversing their plight. By planting more milkweeds, monarch will find these larval food sources more readily. Milkweeds are larval host plants for Monarch and Queen Butterflies and the Milkweed Tussock Moth. Many bees, wasps, butterflies and beetles visit milkweed flowers for the nectar. Milkweed plants typically produce a lot of nectar that it is replenished overnight. Nocturnal moths feast at night and other pollinators flock to these important plants during the day. 

Choose butterfly milkweed (Asclepias tuberosa) or green antelope horn milkweed for your formal garden and common, Sullivant’s, or whorled milkweeds for the outskirts of your property. 

Newly hatched monarch caterpillar on common milkweed.

Blazing Stars (Liatris sp.)

Liatris are very important wildflowers. The vibrant purple blooms in summer support many great insect species. They are quite adaptive with different species growing in dry to moist soil conditions. There is literally a blazing star for just about every garden setting. 

I prefer Liatris pycnostachya and Liatris aspera, but many others, including Liatris ligulistylis and Liatris punctata, are nice too.    

Liatris pycnostachya

Planting just natives is not enough. Garden designs and plant communities must contain at least some keystone plants to positively impact the food web. This is the start of a list, but there are certainly more plants to choose from.  Check out Keystone Natives for the Food Web-Part 2 and Keystone Natives for the Food Web-Shrubs.

Grasses for 2023

When a new plant is introduced into the market, it is more than just a fancy name. Plant breeders work for years, sometimes decades, to perfect and patent a distinct new plant variety. Sometimes this is the work of hybridization, complicated gene editing or human-aided crosspollination. But other times it starts by finding an interesting plant in the wild that varies from its normal phenotype and reproducing it reliably in trials to get ready for the mass market. Either way, after all that work, it is exciting to see the results!

Here are two new grass varieties available at our spring FloraKansas event, both the result of finding great natural specimens growing wild and capitalizing on their landscape-worthy traits.

Sorghastrum nutans ‘Golden Sunset’

Sorghastrum ‘Golden Sunset’, photo courtesy of Walter’s Gardens

I’ll admit that Indiangrass, also known as yellow prairie grass, is not my favorite of our native species. It is always flopping over and spreading everywhere. I don’t care for its sloppy habit. But ‘Golden Sunset’ might change my mind! Selected at the University of Minnesota and in development for 15 years, this grass is known for its upright habit and early flowering. That means more time to enjoy the bright yellow feather-like plumes, and they won’t fall over in the strong Kansas wind! Great for creating a screen or living fence, or as an accent in the back of the garden. Use Sorghastrum ‘Golden Sunset’ in place of non-native and invasive Pampas grass. Sorghastrum serves as a host plant for the pepper-and-salt skipper butterfly.

Grass height: 3 ft
Grass with blooms: 6 ft
Plumes can be up to 12 inches long!

Andropogon ‘Karls Cousin’

Tall and stately, this grass is will not sprawl and go limp like the parent species. Photo from our supplier, Hoffman Nursery

Big bluestem (Andropogon gerardii) is an important species in the tall grass prairie ecosystem. Beyond providing an incredible amount of biomass for grazers, birds and insects, they are also well loved in the urban and residential landscape. ‘Karl’s Cousin’ is a selection found by breeder Dave MacKenzie growing on the side of the road. It was distinct and eye-catching, and after taking may divisions and many years in the trial garden, ‘Karl’s Cousin’ was named as a new variety of Andropogon. It’s much more upright than the species, with good color and strong stems and can be used as a replacement in some situations for ‘Karl Foerster’ grass, a non-native cool season ornamental grass. Where the straight species big bluestem might be too large or floppy for a city garden, this variety makes it possible to include in even small spaces.

Grass height: 4 ft
Grass with bloom: 7 ft
Great fall color!

Grass for Every Place

We have been planting and selling native grasses here for many years. We definitely have our favorites, like ‘Northwind’ Panicum and ‘Twilight Zone’ Schizachyrium. But there are hundreds of great grass species out there to fit any landscape. Dry, rocky soil? Try a western Kansas species like Bouteloua gracillis. Need a tall and fast growing living fence? ‘Dallas Blues’ switchgrass might be right for you. And if you have too much shade for traditional prairie grasses, consider adding sedges to your garden. While not technically in the grass family, these plants add grassy texture but can handle conditions from dry shade to full sun bogs. Keep your eye on our FloraKansas page to get the Native Plant Guide as soon as we update it for 2023, so you will know what species we have available this year.

Landscaping at Wichita Art Museum – Photo by Brad Guhr

Winter Green

This time of year, I am especially thankful for my prairie garden. While the rest of the non-native and plants are looking limp and frozen, many of my prairie plants are standing tall and providing excellent color, texture and shape. Lots of native species even stay green through the coldest days of winter!

Stay Cool

For most garden plants, freezing temps are the abrupt end to the growing season. Their stems and leaves freeze, and with freezing comes the expansion of water in their cells, rupturing their delicate tissues and leaving them limp and mushy. But most popular annuals like peppers, tomatoes, petunias and marigolds, are all tropical plants not accustomed to the cold. Perennial native prairie species have a few *tricks up their leaves* when it comes to surviving the cold. To stay green and prevent cell destruction, some plants loose their leaves all together (deciduous trees and shrubs), but others change the chemical composition of their tissues in order to stay green. They load their leaves with sugar, creating a sort of anti-freeze. A leaf full of sugary solutes has a much lower freezing temp than one with regular water inside. Genius!

Care of Winter Plants

Plants that retain a bit of green all winter are a real benefit to anyone who loves to spend time in their garden regardless of the temp. But, if it’s green, its growing (albeit very slowly!). Which means those plants might need a drink of water during the long dry spells of our Kansas winter. Don’t forget to water your landscape in droughty winters, especially if they are newly planted. Check the soil with your finger by pushing it in to the second knuckle — if it’s dry, add some water. If its moist, leave it alone. Too much water in winter causes rot and death to most dryland loving natives. Manage your winter water carefully and you will be rewarded with vigorous green growth in spring!

This dried Vernonia fasciculata, with its seeds dispersed from the flowers already, has little star shaped sepals left behind that look great in dried arrangments.

If the grey, cold weather is getting you down, remember to get out in your prairie garden or visit the Arboretum to observe all the wonderful shapes, textures, and colors our native plants have to offer. Before you know it, spring will be here and we will be reminiscing about the slow, peaceful days of winter!

Advantages to Using Ornamental Grasses in the Landscape

As I was preparing for my next Native Plant School class on the Wonderful World of Grasses, I was reminded why I love grasses in the landscape.  Here are a few thoughts about why ornamental grasses are such an important component of a successful habitat garden.

Versatility

There is so many different ways you can use ornamental grasses in the landscape.  Distinct grasses introduced into your landscape will serve different purposes.

I love the way shorter grasses like prairie dropseed look along a walkway or border. Combine these grasses with shorter perennials and it really sets off the edge of a planting bed. Ornamental grasses are a great alternative groundcover to traditional turf grass such as fescue, too.

I use larger ornamental grasses typically as a backdrop for medium to tall perennial wildflowers or as a screen to hide something like a gas meter or transformer.  These taller varieties billow out to create volume as they grow to fill in spaces. They also can be used to punctuate the design as focal points.  Grasses are structure plants that mix well with other seasonal wildflowers such as black-eyed Susan or asters.

Varied Appearance

When it comes to ornamental grasses, there is one for just about every landscape situation. The distinct features, varied heights, forms, colors and varieties give you options to diversify and contrast plants in your landscape. Fine or coarse foliage of green, blue, purple, tan and red hues planted together with interesting seedheads add visual interest and texture in winter. All these features lead your eyes through your outdoor space. As the grasses transition into fall, many develop attractive fall color and interesting seed heads. In the winter, taller grasses capture snow and move with the gentlest breeze.

Sorghastrum nutans GOLDEN SUNSET® (‘MNYG318153’ PP33776) Photo by Walters Garden
Schizachyrium scoparium ‘Twilight Zone’ PP27432 Photo courtesy of Walters Garden

Easy Maintenance

Over the past few years, more and more people are including ornamental grass in their landscape. As we have said they are versatile and beautiful. They are also reliable in our unpredictable Kansas climate. Grasses are a low-maintenance landscape option once established. The deep roots help grasses combine well with other perennials. They don’t need fertilizer because that will make them grow quickly and flop. They grow on their own without the need for pruning or maintenance. We usually cut our grasses back in late winter around February or March in preparation for spring.

Environmental Benefits

Photos by Iralee Barnard

Most ornamental grasses and especially warm season grasses such as switchgrass and big bluestem are resistant to heat and drought. They don’t require a lot of extra moisture through the growing season which conserves water in the garden. Overall, native or ornamental grasses are pests or disease free which reduces the need for pesticides, so you don’t pollute local waterways.

As I mentioned earlier, grasses have deep root systems that are great at holding soil and eliminating erosion. Probably the biggest advantage of including ornamental grasses in your gardens is that they create habitat. Wildlife and pollinators use grasses for overwintering, resting, and sourcing food. Grasses are familiar elements of the natural environment for wildlife. Add a few grasses and see what and who arrives in your yard.

Purple Prairie Clover – KNPS 2023 Wildflower of the Year

I recently wrote a brief article on purple prairie clover for the newest edition of the Kansas Native Plant Society newsletter and thought it would be relevant to cross-promote on our blog.

Purple prairie clover (Dalea purpurea) is the Kansas Native Plant Society 2023 Kansas
Wildflower of the Year
(WOY). Found throughout Kansas, this erect perennial from the bean family (Fabaceae) grows with multiple simple or branched stems in height of one to three feet tall. Its preferred habitat is medium to well-drained, full-sun, dry upland prairie. Extreme drought tolerance is thanks to a deep taproot. The newer genus name (replacing Petalostemon) honors 17-18 th century English botanist, Samuel Dale.

Photo by Michael Haddock

The dense thimble-like clusters of tiny flowers help purple prairie clover stand out with a
splash of color amidst emerging prairie grasses in June and early July. The ¼” purple flower
has five petals and five yellow anthers. Each less than 1/8” pod or seed capsule contains a
single yellowish-green or brown seed. Delicate leaves are alternate branching and pinnately compound with 3-5 narrow, linear leaflets.

Line drawing by Lorna Harder

This non-aggressive, nitrogen-fixing legume is a popular choice for any prairie seed mix or
sunny flowerbed. It is common to see various types of bees and other pollinators gathering
nectar from the flowers of purple prairie clover. The vegetation is larval food for southern
dogface and Reakirt’s blue butterflies.

Photo by Michael Haddock

The drawings are by Lorna Harder and the photographs are by Michael Haddock. To see
more Dalea purpurea photos by Michael Haddock and a detailed species description, visit kswildflower.org.


Past KNPS WOY Selections

2022 Dotted blazing star (Liatris punctata)
2021 Compass plant (Silphium laciniatum)
2020 Blue wild indigo (Baptisia australis var. minor)
2019 Woolly verbena (Verbena stricta)
2018 Cobaea penstemon (Penstemon cobaea)
2017 Plains coreopsis (Coreopsis tinctoria)
2016 Golden alexanders (Zizia aurea)
2015 Green antelopehorn (Asclepias viridis)
2014 Blue-eyed grass (Sisyrinchium species)
2013  Little bluestem (Schizachyrium scoparium)
2012 Lead plant (Amorpha canescens)
2011 Prairie coneflower (Ratibida columnifera)
2010 Catclaw sensitive briar (Schrankia nuttallii)
2009 Prairie larkspur (Delphinium virescens)
2008 Fringed puccoon (Lithospermum incisum)
2007 Purple poppy mallow (Callirhoe involucrata)
2006 Blue sage (Salvia azurea)
2005 Rose verbena (Glandularia canadensis)
2004 Missouri evening primrose (Oenothera macrocarpa)
2003 Large beardtongue (Penstemon grandiflorus)
2002 Fremont’s clematis (Clematis fremontii)
2001 Thickspike gayfeather (Liatris pycnostachya)
2000 Maximillian sunflower (Helianthus maximilliani)
1999 Butterfly milkweed (Asclepias tuberosa)
1998 Black-sampson echinacea (Echinacea angustifolia)

Shiny New Plants for 2023

In one of the horticulture magazines I received this week, I was drawn to an article about some shiny new plants for 2023. I don’t know what it is about new plants, but I like to see the unique, unusual and up and coming each year. It is one of the great things about gardening – there are always new plants on the horizon. Like some people wait for the new models of cars, gardeners wait with anticipation for the newest varieties and forms of vegetables, flowers, grasses, trees and shrubs. I can’t afford a new car, but I can afford a few new plants.  

As I look at some of these new plants, I have to temper my enthusiasm. New isn’t always better. I have been burned by some of these shiny new plants in the past. There are some plants that are interesting, but will they grow here? Will they hold up to the rigors of the Kansas climate like true native plants do?

Natives – Always a good place to start

For obvious reasons, we promote the use of natives in the landscape – the same plants you would see growing out in the prairie are well-adapted to grow in Kansas.  If properly matched to your site, a community of native plants will thrive with little input once established.  This mixture of plants is a perfect habitat for wildlife (including pollinators) and requires less water and no pesticides over time.

Butterfly weed and Pale Purple Coneflower

With that said, is there a place for some of these new varieties in the landscape?  In my opinion, yes.  Certainly, there are some new plants that are NOT worth trying. These are usually discernible. They will wilt and/or struggle to grow in the Kansas climate. Think of a summer day with 30 mph south winds. That will make or break many of these new plants. However, a handful of new forms each year, if tested and tried, will survive the hardships of our climate.  

Panicum virgatum ‘Northwind’, Schizachryrium scoparium ‘Twilight Zone’ and Aster oblongifolius ‘Raydon’s Favorite’ are a few examples of garden worthy ‘nativars’ for Kansas.  These sure forms have so much to offer in the garden. Their form, texture, color, habit, or blooms along with resilient qualities make them good choices in sunny locations. My approach to landscape design has always been to mix and match natives and varieties of natives. I like the predictability of some of these selected plants that can be combined with true natives to still create a layered, attractive and interesting combination of plants that creates habitat for wildlife. 

Twilight Zone Little Bluestem. I love that purple cast to the foliage. Photo courtesy Walters Gardens.

Yes, natives and selections

Again, not every new plants is appropriate for our garden situation, especially in Kansas. It is up to you how to determine how purely native you want your landscape to be. I take the “yes, native and ‘some others’” approach to my garden design. Sure there have been some duds regarding new plants that didn’t pan out, but others have been a success. 

To me there is value in having as diverse a landscape as possible, both native and ‘nativars’. Only by testing and trying these new plants will we be able to determine if they have the staying power in the garden. Do your research and choose wisely. I have become very selective/skeptical when it comes to new plants, but I can always find a place for a few new plants each year worth taking a chance on. Diversity attracts diversity. 

P.S.  Vegetables/edibles are in a whole other ball game when it comes to new plants and varieties.  Heirloom varieties are important because they hold the original genetic code and generally taste better.  However, newer varieties and selections are disease resistant, vigorous, and typically yield better. Another trend with vegetables is growing edibles in containers on your patio or deck. Who doesn’t like to walk onto your deck and pick a fresh tomato?

New Native Plants for Florakansas

“New native plants” is a misnomer we use a lot throughout our blogs and newsletters. In fact, they have been here for eons! But we get pretty excited around here when we can add a lesser-known native to our inventory for the first time. “New” just means newly available to our customers. Thanks to growing demand for natives in the landscape industry, more wholesale growers are expanding their offerings, which means we can expand our FloraKansas selection.

Solidago flexicaulis, zig zag goldenrod

A goldenrod that prefers shady, woodland conditions, Solidago flexicaulis can be found in far eastern Kansas and throughout the Ozarks, all the way to the east coast! This plant presents a great opportunity to get some color and pollinator attraction in shaded areas. Its name refers to the zig zag pattern of blooms up the stem. To identify it from other shady goldenrods like Solidago odora or Solidago caesia, look for the wide leaves with dramatically serrated edges. Companion plants include wild geraniums, columbine, and jack-in-the-pulpit.

Fritzflohrreynolds, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons
Douglas Goldman, CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0, via Wikimedia Commons

Clinopodium arkansanum, limestone calamint

Rob Routledge, Sault College, Bugwood.org (Cropped by uploader), CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons

At less than a foot tall, we don’t want you to accidentally pass this one by! Limestone calamint is found growing in the open glades and rocky prairies of Missouri and Arkansas, along with a few populations scattered in New Mexico, Texas, and the upper Midwest states. Tube-shaped flowers typical of the mint family will attract plenty of pollinators. Plant in soil that is well-drained, rocky, and slightly alkaline, in full to partial sun. Plant with similar sized friends that like rocky soil too, such as blue grama grass and perky sue.

Rosa carolina, pasture rose

Photo by D. Gordon E. Robertson, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0, via Wikimedia Commons

Most roses you see in the flower shop or floral department of the grocery store are not native roses. Not even close! Shipped from all over South America, they have made us forget the simple beauty of our own native rose species. Wild roses may not have the massive, overstuffed blooms and countless layers of petals, but these natives are much easier to care for, provide tons of nectar to insects, and smell heavenly. Pasture rose is 1 to 3 feet tall and likes open, sunny exposures. As a native species, it is more resistant to rose-rosette disease than ornamental types. Very thorny, these roses can be used to form low hedges or a living fence.

Viola pedatifida, prairie violet

Photo in public domain at Wikimedia Commons

These diminutive and inconspicuous native plants live their life in the prairie understory, shaded out by taller species all around them. Blooming in spring, they are great next to sidewalks and in areas you pass by frequently so you don’t miss them! Prairie violets very closely resemble the other species of violet we carry, Viola pedata (bird’s foot violet), but that one has orange stamens and prairie violet does not. Both are host to many butterfly species but they do not spread as aggressively as common violets. These look great with crocus, and spread nicely underneath grasses like little bluestem.

Spring will be here before you know it! Which native plants will you add to your garden in 2023? Check our FloraKansas page for updates about the spring event.

New Year, New Plants

Winter is a great time for gardeners to curl up on the sofa and pore over seed and plant catalogs. Every year I try to order a few new plants to spice up our inventory and widen our species diversity. Just looking at all those beautiful blooms to choose from gets me excited for spring! Luckily, when I am ordering plugs and bulbs to grow in the greenhouse, I get to spend hours doing just that. Here are some new adaptable plants we will be offering at our spring FloraKansas:

Gazania linearis

Gazania linearis flower, photo by S Molteno, CC BY-SA 4.0 via Wikimedia Commons

This tough South African native is hardy to zone 5 and loves dry conditions. An extremely long bloomer, showing off its sunny yellow flowers for much of the summer, it only reaches six inches tall. Strappy grass-like foliage can be thick and form a ground cover. This plant is right at home in rock gardens and tough spots that don’t get much irrigation. Pair with native flax (Linum perenne) and fame flower (Talinum calycinum).

Peony Itoh x Pink Double Dandy

Photo from GrowingColors.com

Itoh peonies, also known as intersectional peonies, are stronger and larger than regular garden peonies. A rare and hard-to-find hybrid between tree peonies and garden peonies, they are becoming more readily available these days. Known for fantastically huge blooms and an upright habit, never flopping over in the rain like other peonies do. This is a new introduction, with blooms boasting a bright pink center and paler pink edges. It makes a great centerpiece of any garden, or show-stopper when planted in groups along a driveway or border.

Heuchera ‘Peachberry Ice’

Coral bells is a favorite shade plant for many people. Colorful foliage, low maintenance, dainty blooms – it has a lot of appeal! Given a bit of moisture and some protection from sun during the hottest parts of the day, coral bells is long lived and easy to grow. This new selection from Proven Winners has a showy range of copper to blush leaves and a bushy habit. We are excited to try it out on our grounds if we can find the right spot.

Dianthus ‘Red Rouge’

Dianthus is a stunning late spring early summer bloomer, and good for pollinators too! Photo courtesy of Walters Gardens

Dianthus, also known as cheddar pinks, is a tough little plant that loves sun and hot weather. The single blooming variety (seen above) is also great for pollinators, and pairs well with Kansas native Hymenoxys scaposa and Sporobolus heterolepis, both short and sun loving as well. Dianthus tend to rot if the roots stay moist too long, so be sure the soil has good drainage. Plant along sidewalks and at the front of the garden border.

I never get tired of researching new plants and trying them out on our grounds and in the greenhouse. Look out for our next post all about the new Kansas natives we have added to our inventory for the upcoming spring sale. Hopefully dreaming of these beauties will help you get through the long winter still ahead. And when the ground thaws, we can all get our shovels dirty once again!

A Few Favorite Plants

It looks like winter is settling in as the forecast seems to be turning colder in the coming days. It is a perfect time to reflect on the past year in the garden. 

It has been a tough year to grow just about everything, due to the monsoon rains in spring followed by the desert dry months of summer and fall.  In spite of the high and lows, wet and dry, there are a handful of plants that stood out in the landscape – plants that flourished rather than floundered. 

Amsonia hubrichtii ‘Butterscotch’

A favorite plant of mine has been Amsonia.  I like just about all of them including, ‘Sting Theory’, ‘Storm Cloud’, ‘Blue Ice’,  Amsonia illustris and Amsonia hubrichtii.  However, I have really enjoyed the cultivar, Amsonia hubrichtii ‘Butterscotch’.  It has narrow leaves that don’t turn brown on the ends.  The pale blue flower clusters in the spring are a perfect topper to these sturdy plants.  The real show is in fall when the entire plants turns a golden orangish-brown.  The plants will get fuller over time with more and more wands of clean attractive foliage. 

Amsonia hubrishtii ‘Butterscotch’ with Aster oblongifolius ‘Raydon’s Favorite

Aster oblongifolius ‘Raydon’s Favorite’

We have carried Aster oblongifolius ‘Raydon’s Favorite’ for many years at our plant sales.  It continues to be a “favorite” of many customers and I can see why.  In the late fall, the entire plant is covered with dark lavender blooms that pollinators love.  It extends the bloom time in the garden into late October.  The plants are tidy and don’t become leggy like some of the New England asters with their dry leaves on the bottom of the stems.  It does slowly spread but can be divided, shared with your neighbor or planted somewhere else in the garden.  Drought tolerant and tough, it is a plant I have come to admire. 

Scutellaria resinosa ‘Smoky Hills’

One of Katie’s top performers in her home garden has been Scutellaria resinosa. Resinous skullcap is a compact little beauty of the short grass prairie.  The bright blue/purple flowers in summer stand out in the front of a dry sunny border.  It is drought tolerant, durable, and unique.  The neat little mounds with mouse ear grey-green leaves are charming.  It needs well-drained soil.  Plant them with Perky Sue, evening primrose or prairie zinnia.

Scutellaria resinosa Photo courtesy of Craig Freeman

Schizachyrium scoparium ‘Twilight Zone’

I have really come to appreciate grasses in the garden.  The movement and texture in the garden is nice especially through the winter. There is so much diversity and heights of grasses to mix and match in your landscape.  A beautiful little bluestem that has performed well for us has been Schizachyrium scoparium ‘Twilight Zone’.  This is not your typical little bluestem.  It displays beautiful steely-blue foliage with flower spikes of varying purple shades. It seems to be constantly changing through the seasons, slowly shifting to bright purple during autumn.  It is a taller grass that will grow 4 to 5 feet in height and reach a spread of about 2 to 3 feet.  The beautiful foliage will transition to reddish-orange in the fall.  As you know, little bluestems are favorite overwintering homes for insects and pollinators.  The seeds are winter foods for a many types of birds.

Little Bluestem Twilight Zone Photo courtesy Walters Gardens.

Diervilla lonicera x ‘Kodiak Orange’

This spring I needed some shrubs to go around the deck in my backyard.  I planted a Viburnum ‘Blue Muffin’ along with a cross-pollinators Viburnum ‘Little Joe’ to make sure they produced fruit.  There was a silky dogwood called ‘Red Rover’ along with a native bush honeysuckle Diervilla lonicera ‘Kodiak Orange’.  I have been impressed with the honeysuckle.  It never wilted compared to the viburnum and dogwood.  It developed tiny yellow honeysuckle-like flowers throughout the summer that attracted butterflies and other pollinators.  The orange-green leaves have turned yellow-orange this fall which is a bonus.  It is quite adaptable to dry soil once established.  My yard is quite shady except mid-afternoon and they thrived.  There are many non-native and invasive honeysuckles including Morrow’s honeysuckle, Tatarian honeysuckle, Amur honeysuckle, and Japanese honeysuckle (Lonicera spp.).  Although somewhat similar in appearance Diervilla are native and not invasive.  One thing I have learned about invasive honeysuckles is that they have hollow stems.  Native honeysuckles have solid stems. 

Fall color of Kodiak Orange

I hope you have been able to think back through this year and reminisce about your garden successes.  We often put so much time and effort into our gardens that we don’t step back and take in the scenery.  Also, remember that a beautiful landscape that we enjoy has ties to ecology, creating habitat and helping wildlife too.

Plant Profile: Goldenrods (Solidago sp.)

Right now in prairies, woodlands, roadside ditches and home gardens, wonderful displays of native grasses along with wildflowers blooming yellow, white, and lavender are putting on quite a show. The yellow wildflowers are most likely either sunflowers or goldenrods. Each is quite beautiful and teeming with pollinators.

Solidago ‘Wichita Mountains’ blooming in the Compassionate Friends Garden

Goldenrods are just as diverse and variable as sunflowers. While many landscape plants have already reached their peak and the flowers have faded by September, goldenrods have become the stars of the show as they brighten up the landscape. Their golden yellow autumn inflorescences are striking.

In spite of their attractiveness, goldenrods have a reputation for causing allergies. In truth, this is unlikely, because goldenrod pollen is large and heavy and is not carried by the wind. Rather, it is giant ragweed (Ambrosia sp.) that is spreading pollen through the air at the same time.

These wildflowers are insect-pollinated by many wasps, moths, beetles, honey bees, monarch butterflies and other beneficial pollinators searching for a sip of nectar. In total, 11 specialist bees and 115 different caterpillars need these plants. There are around 50 species of insects with immature forms that feed on the stems of goldenrod. In addition, seeds and foliage provide food for some birds and mammals. Across the board, goldenrods are of huge value to wildlife and one of the keystone wildflowers for pollinators.

Gray Goldenrod-Solidago nemoralis

Goldenrods are adaptable to a wide range of conditions in nature, making them a great choice as a landscape plant. They grow naturally in soils from wet to dry. Even the drought conditions we have been experiencing have not kept these denizens of the prairie from blooming. There is a goldenrod that will grow in your garden.

For all their positive attributes, there are goldenrod species that don’t belong in a formal garden. Canada goldenrod for example is a highly aggressive species that spreads by underground rhizomes and seed, ultimately pushing out other smaller desirable plants. It will take over a garden in a couple of years. However, in a prairie setting with the deep roots of native grasses and competition from other plants, it can be mostly kept in check. That is why we recommend clump-forming goldenrods as a more reliable choice for the landscape relegating those aggressive species to the prairie or outskirts of the landscape (along a fence or in an alley) where they are free to roam and spread.

I like Solidago rigida, Solidago nemoralis, Solidago ‘Wichita Mountains’, Solidago canadensis ‘Golden Baby’, and Solidago ‘Fireworks’ for sunny areas. For shade, I choose to plant Solidago odora, Solidago ulmifolius or Solidago caesia. It is safe to say that goldenrods are powerhouse plants that deserve a place in your native garden.

Rigid Goldenrod-Solidago rigida (top) and gray goldenrod (bottom)
Solidago rugosa ‘Fireworks’