Host an Event Volunteer Join Tickets

Support the plant database you love!

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.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

Ask Mr. Smarty Plants

Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.

Search Smarty Plants
See a list of all Smarty Plants questions

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

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

QUESTION:

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?

ANSWER:

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 Cacti and Succulents Questions

Dividing and planting Yucca and pups in New Mexico
June 23, 2009 - I bought a Yucca plant and had 7 plants in one planter 1 large and 6 small. We wanted to split up the plants so we carefully separated them and planted them. My soil is very sandy (Rio Rancho) but I...
view the full question and answer

Native plants for a New York, NY apartment?
August 14, 2009 - Dear Mr. Smarty Plants, What are some native Mid-Atlantic/New England plants that can be grown well indoors? I live in an apartment in New York City and have recently realised that the plants I'v...
view the full question and answer

Are agaves really native from Pacific Palisades CA
April 30, 2013 - I just replied re agave issues, and mistakenly asked the source of your information. I see that you clearly noted it, apologies. I would note, however, that the Riverside area is very much a hot,...
view the full question and answer

Problems with Strawberry Hedgehog cactus from Temple TX
June 03, 2012 - I had purchased a Strawberry hedgehog Cactus (echinocereus stramineus) a few years ago from the Wildflower Center's annual plant sale and planted it then. It has now started to brown from bottom to t...
view the full question and answer

Root depth of opuntia
May 15, 2007 - What can you tell me about the depth of roots of the opuntia? Does it vary with different varieties or is there formula to estimate the depth according to the mature size or to the culture - garden ...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.