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

Sunday - April 08, 2012

From: San Angelo, TX
Region: Southwest
Topic: Compost and Mulch, Shrubs
Title: Chlorosis in yaupon from San Angelo TX
Answered by: Barbara Medford

QUESTION:

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 yard is all gravel, so I don't water the bushes often. However, the soil is sticky red dirt that turns into bedrock about two feet down. So, we'll see how it does with these adjustments and also read the article on chlorosis.

ANSWER:

Well, you moved right ahead on that. Your shrub roots probably don't need to go down 2 feet to the bedrock, because roots tend to spread out closer to the surface for adequate gas exchange, i.e.,  carbon dioxide and oxygen. Either the lighter mulch decomposing or some compost mixed into the soil will help. It sounds like you have clay soil, which has nutrients in it but is composed of tiny particles that swell up and prevent the movement of oxygen to the roots. The roots can even drown, but if you are watering the yaupon less, that should help.

 

More Compost and Mulch Questions

Allelopathc qualities in sunflowers
June 19, 2007 - I have a sunflower patch in the corner of my backyard (Maximilians, common sunflower, and silverleaf sunflower)and would like to use the spent stalks (sans the seedheads) as mulch in the fall. Howeve...
view the full question and answer

What will grow in red clay in Conroe TX?
April 10, 2011 - We just built a new home and the foundation was poured on red clay which is what my flowerbed area is in. Could you please tell me what can be planted that will grow. I am looking for ground cover, fl...
view the full question and answer

Soil improvement near Kerrville, TX
December 11, 2010 - We live in the Kerrville area; the soil is extremely shallow and deficient. The yard consists of mainly native plants, with a concentration of plants for butterflies and birds. What kind of soil and ...
view the full question and answer

Proper watering of cedar elm trees in Sachse, TX
August 15, 2008 - I've just planted two Cedar elm trees in clay soil, each about four inches in diameter, and I want to water them correctly. I'm aware that too much water can be bad as well as too little water. I ...
view the full question and answer

Problems with Texas wild olive tree in Tucson
November 15, 2010 - Planted a Texas Olive tree in Tucson, Az. Some of the leaves are kind of yellow. It gets part sun and part shade and is growing. Is this due to too much water, not enough water or does it need somet...
view the full question and answer

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