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

Wednesday - April 02, 2008

From: St. Paul , MN
Region: Midwest
Topic: Compost and Mulch, Soils
Title: Possibility of growing plants in St. Peter Sandstone
Answered by: Barbara Medford

QUESTION:

Can you grow plants or native plants in St. Peter Sandstone or amend it?

ANSWER:

Well, if we grow any plants in any kind of soil, you can bet they will be native plants. That's what we do at the Lady Bird Johnson Wildflower Center-care for, promote and propagate plants native to North America. Being mostly gardeners, and Texas gardeners at that, the first thing we had to do was figure out what St. Peter's sandstone is. We discovered that St. Peter sandstone originated as a sheet of sand in clear, shallow water near the shore of a Paleozoic sea and consists of fine to medium size, well rounded quartz grains with frosted surfaces. The extent of the formation spans north-south from Minnesota to Missouri and east-west from Illinois into Nebraska and South Dakota. In commercial applications, it is called Ottawa sand and is used for the manufacture of glass, for filter and molding sand and for abrasives.

So, we went searching for possible botanical uses for this sandstone, or just sand, if you will. We found many, many references written by geologists, but not one single botanical reference. From a practical standpoint, sand is difficult to grow anything in anyway; it is made of very large particles which don't cling together, and therefore, if you put a plant in it, fertilize the plant, and then water it, all the water (and the nutrients) are going to shoot right through and go off somewhere else. Sometimes, gardeners seek to add sand to clay soils to amend them by making them looser, but it's not recommended, because it's difficult to get the correct balance. And, we really can't imagine trying to grow anything in a soil that is used for glassmaking. If the dirt you have in your garden is predominantly composed of this sand, we would suggest raised beds with compost and topsoil, on top of the sand, not mixed with it.

 

More Compost and Mulch Questions

Ground cover for heavy dog traffic in Huntsville TX
July 23, 2010 - We have recently moved to Huntsville, TX where our backyard is very shady and has only a small patch of St. Augustine grass and the rest is a dry, sand-like soil. We also have 2 Great Danes and 2 Pugs...
view the full question and answer

Dog wallowing in damp area in garden from Great Bend KS
March 20, 2013 - I Have a wet area in my back yard that is close to my house. and off my patio there is a water hydrant,gas meter, electrical for my hot tub, my sprinkler valves and pump all there. My dog digs throug...
view the full question and answer

Disagreement on amending soil for planting from Austin
September 01, 2012 - In today's newspaper column, you answered a question about transplanting a redbud. You said to follow the instructions on the WFC web site, except you recommended adding compost to the backfill soil....
view the full question and answer

Chlorosis in yaupon from San Angelo TX
April 08, 2012 - Thank you for your information on the yaupon holly. We just finished clearing out the mulch and the red ground cover that popped up. I will quit watering it as much as the rest of the plants. Our y...
view the full question and answer

Planting a Texas Persimmon in rocky soil in Krum TX
March 27, 2009 - I have recently purchased a 10 gallon Texas Persimmon plant that I want to put as a highlight plant in my yard. According to the nursery, it has been in the pot for 2 years. I have been "blessed(or...
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP
© 2014 Lady Bird Johnson Wildflower Center