En EspaŅol

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
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

Friday - March 10, 2006

From: Bowie, TX
Region: Southwest
Topic: Wildflower Center
Title: Information on green roof demonstration site at Wildflower Center
Answered by: Nan Hampton and Mark Simmons

QUESTION:

I visited your green roof demonstration site and am interested in putting a green roof on a structure. There seemed to be at least two layers of growing medium in the planters; one layer looked like rounded pumice or rounded brick fragments and I believe it was below the drip irrigation lines and the other looked like a growing medium. Could you explain what each layer does and where I could get the stuff in bulk?

ANSWER:

Our expert, Mark Simmons, thinks the layers you are referring to are merely the gravitational settlement of the media (synthetic soil) following rain events. The composition of each of these media is proprietary; however, contacting the suppler Siplast may help. We are in the process of creating more infomation about this experiment as it gets set-up over the the next month or so. If you haven't seen it already, please visit our Green Roof Gardening page.
 

More Wildflower Center Questions

Name five non-flowering species at the Wildflower Center.
April 30, 2010 - Can you tell me the names of five non-flowering plant species (true mosses, conifers, ferns) currently growing at your center?
view the full question and answer

Color of Englemann's daisy (Engelmannia peristenia)
April 11, 2010 - I'm in Austin and just bought some Engelmann's Daisies at the plant sale on Fri. The picture had them with white petals, and your plant database has them with yellow petals. I specifically wanted wh...
view the full question and answer

Purchase of herbs from Wildflower Center
October 18, 2008 - Can I purchase herbs from the Wildflower Center?
view the full question and answer

Wildflowers to see at Wildflower Center in September
September 12, 2006 - My wife and I will be coming to Austin for the Quilt Show September 29, 2006. Will the wild flowers and gardens still be active? We would very much like to visit if there would still be plenty to se...
view the full question and answer

Living lightly on the land
November 21, 2008 - Are most of the materials used in the Center recyclable materials? For instance, the wood floors and HVAC systems? Thanks, Joel Rodriguez
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP | STAFF
© 2016 Lady Bird Johnson Wildflower Center