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

Do Native Grasses Help Pollinators?

I love native grasses.  Grasses make dramatic focal points when mixed into garden beds or planted individually.  They pull the landscape design together and provide movement within the garden.

Over the past 10 years, there have been some tremendous advances in landscape quality native grasses.  ‘Northwind’ switchgrass is a perfect example.  It offers great form, a tidy columnar habit, texture and ease of care.  It is a reliable grass with consistent qualities that can be counted on year after year in any sunny landscape.  In my opinion, ornamental grasses should be included in all garden designs because they are easy to grow and provide three seasons of interest.

Indian grass (Sorghastrum nutans), Photo by Brad Guhr

Obviously, grasses are gaining in popularity, but one of their most important roles they play in the garden is often overlooked.  Grasses help balance the ecosystem by providing food, shelter, and nesting sites for many different pollinators along with birds and small mammals.  Pollinators need protection from severe weather and from predators, as well as sites for nesting and roosting.  By incorporating different layers of flowering plants and grasses in the landscape, pollinators can find the food and shelter they need for survival.   Pollinators use corridors of plants to safely move through the landscape and be protected from predators.

Over 70 different butterflies and moths depend on native grasses as part of their life cycles.

Big Bluestem (Andropogon gerardii), Photo by Brad Guhr

Cheyenne Sky Switchgrass with Rigid Goldenrod

These grasses are important for adults but they also serve as larval hosts for butterflies and moths.   Many different butterflies lay eggs amongst the native grasses which larvae then utilize during their development.  Some species of bees need open ground to burrow into the soil, so leave small exposed areas of soil between your plants.  Even a small garden containing native species can make a tremendous difference for insect conservation.

Here is a list of native grasses and the pollinators that use them:

Big bluestem-Andropogon gerardii

Larval host for many species of butterflies (Delaware Skipper, Ottoe, Dusted Skipper, Beard-Grass skippers and Common Wood Nymph).

Buffalograss- Bouteloua dactyloides

Butterfly larval host for green skipper butterfly.

Switchgrass- Panicum virgatum

Larval host for skipper butterflies.  Overwintering host for bees and other pollinators.

Little bluestem-Schizachyrium scoparium

Larval host for many species of butterflies and moths (Ottoe Skipper, Crossline Skipper, Dusted Skipper, Cobweb).

Twilight Zone Little Bluestem Photo courtesy Walters Gardens.

Indiangrass- Sorghastrum nutans

Larval host for skipper butterflies.

Prairie Dropseed- Sporobolus heterolepis

Prairie Dropseed is of special value as nesting sites for bees.  Native grasses are the larval food plants of the Leonard’s Skipper.

Prairie Dropseed

Native grasses are attractive, low-maintenance additions to the landscape.  Once established, they help minimize erosion and increase organic matter in the soil.  Native grasses are also vital in the life cycles of many bees, butterflies and other pollinators.  Grasses provide the habitat for overwintering eggs, caterpillars and pupae of butterflies.  The thatch at the base of the grass clumps is ideal for protection from predators and cold weather.

There is a direct correlation between the decline of native grasslands habitats and the decline of many species of butterflies, bees and moths.  Habitat loss is not the only reason for the decrease in pollinators, but it is certainly a factor.  By planting native species of wildflowers and grasses in agricultural, suburban and urban settings, we can help to reverse the population decline.  Even though grasses don’t provide nectar, they are just as important in pollinator gardens as beautiful wildflowers.  So as you plan your pollinator garden, don’t forget to include some native grasses.