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 - 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 Trees Questions

Native Trees for Pflugerville TX
September 28, 2013 - I'm looking for suggestions on native, drought tolerant conifers that can be located in a Pflugerville landscape under overhead electric lines. Open to Arizona Cypress, but concerned about the height...
view the full question and answer

Need to know how to plant trees to create a windbreak in Ashburn, VA.
May 06, 2010 - I want to know how to plant trees to create windbreaks. I live on a slope of a hill, the front of the house is steep and the back of the house has neighbors in a cul de sac. I swear I live in a wind...
view the full question and answer

Live oaks exhibiting white foam spots from Round Rock, TX
June 08, 2014 - We have several native very large Live Oak in our backyard, and this summer we have noticed white foam spots on the branches. We live in Round Rock next to the Williamson County Park. The spots look...
view the full question and answer

Project on natives in Connecticut from Chino CA
April 13, 2010 - Hi Mr. Smarty Plants, My 10 yr. old daughter is doing a project on Ct., and would like to know what the most common plants, trees and flowers are found in this state. A few of each would be a great ...
view the full question and answer

Black coloration on Star Magnolia is probably sooty mold.
November 21, 2008 - I have a star magnolia where 90% of the bark has turned black. It almost looks burned. The tree has decent buds set for next spring. What is causing the bark to turn black?
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