Native Plants
Q. Who is Mr. Smarty Plants?
A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.
Did you know you can access the Native Plant Information Network with your web-enabled smartphone?
Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.
rate this answer
Friday - December 21, 2012
From: Arnold, MO
Region: Midwest
Topic: Grasses or Grass-like
Title: Low-maintenance grass for retention pond
Answered by: Nan Hampton
QUESTION:
I would like to know what would be a low-growing grass to put down for a water retention pond. We have clay and rocky soil. The incline of the sides of the retention pond are about 20 feet with grass bottoms and they hardly ever have water in them. I'm looking for something that is low-maintenance that would only have to be cut once a year or less.ANSWER:
Below are ssuggestions for several grasses and sedges that should work in your retention pond. They are all native to Jefferson County or an adjacent county in Missouri.
Bouteloua dactyloides (Buffalograss) would be an ideal solution as long as the retention pond doesn't hold water often. It grows to only 8 to 12 inches, requires no fertilizer or additional water. It does occur in neighboring St Louis County. Here is one of our How to Articles, Native Lawns: Buffalograss, with more information about the grass and how to plant and care for it.
Digitaria cognata (Carolina crabgrass) is a relatively short grass that is native to Jefferson County. Here is more information from University of Michigan Herbarium and from The Samuel Roberts Noble Foundation.
Hordeum jubatum (Foxtail barley) is an attractive grass that grows to about 20 inches high. Here is more information from Illinois Wildflowers and from Outsidepride.com in Oregon.
Sedges are also a possibility. They usually don't grow as tall as grasses and will usually tolerate growing in very wet soil which could occur in the retention pond. The ones listed below are evergreen or semi-evergreen.
Carex texensis (Texas sedge) is evergreen. Here is more information from Niche Gardens in North Carolina and San Marcos Growers in California.
Carex blanda (Eastern woodland sedge) is evergreen. Here is more information from Illinois Wildflowers and from Missouri Plants.
Carex pensylvanica (Pennsylvania sedge) is semi-evergreen and grows to only 6 to 8 inches high. Here is more information from Illinois Wildflowers and from American Beauty Native Plants in Delaware.
You might try a combination of grasses and sedges at first to see what grows the best in your retention pond area. It will depend on the amount of sun, the soil type and water availability.
From the Image Gallery
More Grasses or Grass-like Questions
Native plants for eroding hillside in Kansas
May 08, 2009 - We have a creek running thru our property and the hill running down to it is about 30 feet tall, in some places almost straight down, some sloping. Some is in shade, some full sun. We would like som...
view the full question and answer
Native grasses for a sandy Maryland yard
June 10, 2011 - Mr. Smarty Plants,
I live in Severn (AA County) where we have sandy soil and on a well/septic system. Can you tell me a native grass I can seed in my yard? Something hardy and does not require a ...
view the full question and answer
Small, flowering, evergreen plants for hillside in Austin.
October 27, 2007 - I have a steep, dry hillside measuring approximately 4 feet high by six feet wide. I want to plant low growing, evergreen, flowering plants across the bed that will flower as long as possible, and thr...
view the full question and answer
Non-native zoysia and bermuda grasses in Austin
July 11, 2013 - We have Bermuda grass in the front and Zoysia in the back yards. The back grass is fine but the front yard Bermuda isn't. We have watered once each week during the spring and during the past 3 weeks...
view the full question and answer
Plants to prevent erosion in IL
August 02, 2012 - We just got done building a house and have leveled all of the dirt piles. We do have a row of straw bales to help prevent the dirt from washing onto the neighbors property. It is the wrong time of ye...
view the full question and answer
Support the Wildflower Center by Donating Online or Becoming a Member today. |