Host an Event Volunteer Join Tickets

Suppport 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
3 ratings

Friday - September 03, 2004

From: Plano, TX
Region: Southwest
Topic: Soils
Title: Smarty Plants on caliche
Answered by: Damon Waitt

QUESTION:

I have heard of sand, silt, clay, and loam, but what is caliche?

ANSWER:

According to the Arizona Department of Agriculture, Caliche is a layer of soil in which the soils has been cemented together by lime (calcium carbonate). Caliche typically occurs in desert or semi-arid areas.

 

More Soils Questions

Cedar sage not blooming in pots in Austin
September 14, 2012 - I have cedar sage (salvia roemeriana) in containers on a dappled-shade apartment patio in Austin, TX. This is their first season here, transplanted in May (it's now September). All the plants have be...
view the full question and answer

Changing the pH of the soil
January 16, 2012 - Hi, We have a job that has mostly Texas native plants on it. The architect is wanting to drop the pH levels of the soils to acidic levels that we don't feel is good for the plants and the area. ...
view the full question and answer

Leaf drop from maple tree in Minnesota
August 15, 2008 - I have about a 30 ft maple tree in my yard, last fall I trimmed it pretty good because the branches were getting low where you could not walk under it or get grass to grow. This is the 2nd time in abo...
view the full question and answer

Need Native Cover Crop in Seguin, TX
October 11, 2010 - Is there a native winter cover crop that would control erosion until spring vegetation takes over?
view the full question and answer

Disagreement with HOA on raised beds placed beneath mature oak from Tequesta FL
April 05, 2014 - I have mature 30 year old oak trees on my property and I put a raised bed under each with very good soil and I used pavers for retaining the soil about about 1.5 ft high. I planted a perennial begonia...
view the full question and answer

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