En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Transplant shock in Mountain Laurel in San Antonio, TX

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 - June 03, 2011

From: San Antonio, TX
Region: Southwest
Topic: Compost and Mulch, Transplants, Trees
Title: Transplant shock in Mountain Laurel in San Antonio, TX
Answered by: Jimmy Mills

QUESTION:

I planted a 2 ft. tall Texas mountain laurel a month ago. Some of the leaves have turned very yellow and some of them are falling off. The plant doesn't look real healthy in general. I did add some crushed granite, just a little turkey and molasses compost and a few watersorb crystals to the soil before planting. Maybe I shouldn't have added anything. I water deeply about twice a week. Any idea why this plant has yellowing leaves? The leaves of my Carolina jessamine are also turning yellow and some shoots have died. One plant completely died and I replaced it. (I have 3) They were planted in late February (3 months ago). Also an established Cenizo has yellowing leaves as well. I have also had trouble with these plants getting a small black bug on the leaves which in turn kill the branches. I have many any other plants that are doing well so I don't think its a soil problem. Thanks for your help.

ANSWER:

Mr. Smarty Plants thinks that transplant shock and overwatering are probably at the root of your problems. I’m going to provide  you with several links that have information starting with planting techniques, transplant shock  (also see), and ideas about proper watering.

Mountain Laurel Sophora secundiflora (Texas mountain laurel) is a drought tolerant evergreen which prefers rocky limestone soil that is well drained. Twice a week waterings probably keep the roots too wet, and the addition of watersorb only exacerbates the problem. The Cenizo Leucophyllum candidum (Brewster county barometerbush) also prefers dry conditions. The Carolina Jessamine Gelsemium sempervirens (Carolina jessamine) prefers moist conditions, but could be experiencing transplant shock. One of the things that people tend to do with new plants is to overwater them.

There are a lot of diferent kinds of small black bugs, so that description isn't very helpful. Here is a link to a previous question regarding small black bugs that might prove useful. One of the culprits they mention is fungus gnats

 

 

More Compost and Mulch Questions

Coreopsis failing to bloom in Sonora CA
August 04, 2009 - My Coreopsis buds form and then die. Very few open. The plants are two and three years old, in a clay type soil. Is it possible they're getting too much water, and that is whats making the buds die ...
view the full question and answer

Potting soil used in Wildflower Center nursery
October 23, 2008 - I recently purchased several beautiful little plants at your Fall plant sale and notice how very happy and healthy they all are! Please tell me if you mix your own potting soil and what your potting ...
view the full question and answer

Source for pecan mulch used at Wildflower Center from Austin
November 11, 2011 - Hello Mr. Smarty Pants I was recently at the Wildflower Center. I saw all the pecan shell mulch and was wondering where you get it from. I noticed awhile back that it is one of the recommended mu...
view the full question and answer

Sunny and shady lawns from Austin
April 28, 2012 - My front yard has a large bed surrounded by a mix of St. Augustine and Bermuda grass. Last summers heat killed off about 90% of the St. Augustine, which we would like to replace anyway to conserve re...
view the full question and answer

Loss of bloom on Fremontodendron californicum in California
June 11, 2009 - The flowers on my Flannel Bush all died at once I have noticed a sappy substance at the base of the trunk. There are still some flowers on bush but most are dead. It has been blooming since Feb. Is ...
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