Sumac in the Garden

Sumac might not be what you imagine when you think of an outstanding garden plant. Native sumac often grows on roadsides or prairie draws, and would be unruly in the home landscape. But there are two cultivated varieties that are wonderful additions to the garden — Gro-Low Sumac and Tiger Eyes Sumac. With all the loveliness of native sumac, but much more manageable.

Rhus aromatica Gro-Low has leaves that look similar to poison ivy, but this plant is completely harmless.

Gro-Low sumac is perfect for that spot in your yard you don’t want to maintenance anymore. It grows only sixteen to eighteen inches tall but sprawls out six to eight feet. A shrubby groundcover, it needs no mowing or trimming, no fertilizing, no attention at all! Poor soil in full or part sun will do just fine, and is very drought tolerant once established. It produces small green flowers in the spring, well-loved by native bees, and a brilliant red-orange leaf color in fall. Plant it with Prunus besseyi, little bluestem grass, or even Raydon’s Favorite Aster for groundcover that dazzles.

The native Rhus aromatica bush has lovely fall color, and gets much taller than the Gro-Low variety. Photo by Emily Weaver

Tiger Eyes sumac has been become a landscape favorite for Arboretum staff. They seem to find a place in every landscape design and new garden bed. Chartreuse leaves turn orange in the fall, and they can tolerate lots of hot sun and drought. They can grow between four and six feet tall. Poor soil is no problem; they are highly adaptable. Fuzzy stems and interesting branching make this plant wonderful to observe anytime of the year. Plant it with Amsonia and Red October big bluestem for a memorable fall color show!

These Tiger Eyes Rhus in the Prairie Lakes edition of Showalter Villa are thriving in full sun. We are always happy when we see native plants in the landscapes of our neighboring organizations!

These sumac will be available at our fall FloraKansas Native Plant Festival September 5-8. Staff can help you find the right plants for your landscape, and your purchase supports the Arboretum’s mission to cultivate transformative relationships between people and the land.

Roadside Beauty: What are you seeing?

Fall is the season of change. The verdant green of the prairie melts to lifeless, barren forms – a stark contrast to the landscape that once looked so alive. But for now, as change happens, we are blessed to partake in hues and colors of striking beauty. Trees explode with vibrant shades of orange, red and yellow. Native grasses develop vivid colors and attractive blooms. Asters, goldenrods and sunflowers speckle the horizon.  It is the crescendo of the whole year.

Maybe you have noticed these dramatic changes happening, too. Plants that once blended into their surroundings are suddenly visible. It’s as if someone turned a light on them. Even the prairies and roadsides display beautiful shades of gold, purple, apricot, olive, and copper with autumn wildflowers, shrubs, and curling, rustling grasses. Here are a few that I have seen lately along the roadsides of south-central Kansas.

Sumac

There is no other shrub that signals fall more than sumac. The blood red leaves and clusters of seeds are striking. They are like beacons along the roadsides. If only we could advertise with these shrubs, because they catch my eye every time.

Dogbane

This close relative of milkweed has so much going for it. Dogbane is host for many insects. In fact, the US Department of Agriculture Natural Resources Conservation Service (USDA NRCS) ranks Dogbane’s value to pollinators as ‘very high’. Dogbane typically grows two to three feet tall and develops into larger colonies. Right now, they are a bright yellow, which makes them stand out even more. Even the common milkweeds have turned a nice golden color.

Big bluestem

The “King of Grasses” is big and bold. The reddish purple stems begin to change and set the landscape ablaze with their intense colors. Look for the distinctive “Turkey Foot” seed head, too.

“I took a long walk north of the town, out into the pastures where the land was so rough that it had never been ploughed up, and the long red grass of early times still grew shaggy over the draws and hillocks. Out there I felt at home again.” -Willa Cather, My Antonia

Switchgrass

There are a number of outstanding native grasses that provide late season interest, but Switchgrass Panicum virgatum is one of the more common grasses in roadside ditches. It grows to a height of 3-6 feet and turns orange, yellow and fiery red-tipped shades in the fall. The persistent airy blooms and attractive fall colors make this an attractive grass in the landscape.

Osage orange

This tree is along many roadsides in south central Kansas. It is still incredible to see those huge hedge apples dangling from the branches and scattered on the road. The tough demeanor of this tree including its thorns made it ideal as a living fence. Many were planted during the Dust Bowl days as part of WPA projects to prevent soil erosion in the Great Plains states.

Heath aster

Asters are the grand finale to the prairie garden. Heath asters are one of the last asters to bloom. The diminutive white flowers cover the entire plant, making them look like snow mounds in the prairie. They are one of the last great feeding opportunities for bees, butterflies, and other pollinators before they migrate or go dormant for the winter.

Although each season is different, autumn is a very special time. Life has come full circle, from spring through summer and ultimately ending in the fall. It is the perfect time to enjoy all that is changing around us. It is a time to take in sights, sounds and smells of the prairie and connect anew with the natural world.

Bonus Plant: Pink smartweed

Pink smartweed is prolific, growing wild in nearly every roadside ditch. The bright pink flowers and red stems are very striking. They thrive in damp or wet sites, but it is an annual. If you want some for your landscape, collect the seed after the pink flowers fade.