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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.

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Wednesday - July 23, 2008

From: Lindale, TX
Region: Southwest
Topic: Cacti and Succulents, Grasses or Grass-like
Title: Is Sedum recommended for a greenroof project in Houston
Answered by: Nan Hampton and Mark Simmons


Would you recommend using Sedum for a green roof project in Houston, Texas? Will the humidity effect the sedum? If sedum would be a poor choice, what would you recommend for Houston?


No. Most sedums tend to come from dry temperate climates and from shallow or very well drained soil. In wet subtropical areas they can suffer from rot and can be out competed by weeds during wetter times of the year.

We tend to favor locally native plants that can tolerate a wide range of climate and soil conditions (i.e. those which have "generalists" traits)—most of the common and widespread prairie grasses and forbs would fall into this category. Selecting your species from this palette would increase your chance of success—you just have to decide what you want your roof to do (hold storm water) or how you want it to look (spring wildflowers). Please visit our Native Green Roofs page for more information about green roofs and a native species list that we are currently testing.


More Grasses or Grass-like Questions

Plants for creek bank in North Carolina
April 29, 2011 - I would like a list of plant options to plant on an almost vertical creek bank in some location in Charlotte, NC. The creek runs through a 300 acre basin, maybe 3 or 4' high banks and I have never se...
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Using corn gluten to suppress weeds in buffalo grass, blue grama and curly mesquite
March 22, 2010 - I own a home in central Austin and am replacing my St. Augustine lawn with a native grass blend of Buffalo, Blue Grama, and Curly Mesquite as a pre-emptive attack for the inevitable drought conditions...
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Groundcover Under Maple Tree in Ottawa That Takes Foot Traffic
April 19, 2013 - Hi, I am looking for a groundcover to put under a large maple tree that will be alright for kids to run about on and will be happy in the Ottawa climate. Your other answers to similar questions have b...
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Eliminating crabgrass in Middletown MO
September 28, 2009 - Dear Mr. Smarty Plants, I am having trouble with my lawn, specifically with the crabgrass in it. It now covers over 1/3 of it. I started using corn gluten meal this year, with limited tangible succ...
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Erosion control on partially shaded slope
November 27, 2010 - Mr. Smarty Plants, I live in Atlanta, GA. My house is on a hill, and I am beginning to have erosion at my backyard porch (concrete slab, on the corners especially). The soil is mainly red clay, a...
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