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 - March 07, 2008

From: Austin, TX
Region: Southwest
Topic: Diseases and Disorders, Trees
Title: Mountain laurel (Sophora secundiflora) refuses to bloom
Answered by: Nan Hampton

QUESTION:

We have a Texas Mountain Laurel that gets full sunlight, but does not bloom. It is 4-5 ft tall & 3-4 ft wide & healthy. Is there anything we can do to make it bloom next year?

ANSWER:

It sounds like everything should be ideal for your Sophora secundiflora (Texas mountain-laurel) to bloom. However, Mr. SP has one question? Are you fertilizing it? If you are, don't do it! Here is a quote from a previous question about native plants failing to bloom:

"The problem with flowering shrubs that are not flowering, native or not, is often too little sunshine or too much lawn fertilizer. Obviously, if you have it in full sun in Austin, that is not the problem. Lawn fertilizer, which possibly is being spread a little farther than the lawn, is high in nitrogen for green leaves (or blades) of grass. A plant you wish to flower but give too much nitrogen will get lazy and fail to bloom. A plant has just one goal in life and that is to reproduce itself. To make seed, it must make flowers, but if it doesn't feel just a little bit insecure about its future, it won't expend the considerable energy to create the flowers."

In general, native plants do not need to be fertilized—one of the many advantages for planting native.


Sophora secundiflora

 

 

More Diseases and Disorders Questions

Brown flakes on prickly pear in Los Angeles
June 03, 2008 - I live in Los Angeles CA. I have desert type plants in my landscape. I have prickly pear cactus that have developed some light brown, almost golden flakes on the skin of the pads. I believe it is call...
view the full question and answer

Wilting American Smoke Tree in Texas
April 21, 2013 - I planted a young American smoke tree last fall (mid-November) and it put out a good show of tentative new leaves this spring. Then to keep the tree form I clipped some little shrubby start ups at the...
view the full question and answer

Ostrya virginiana Compatible with Juglone
May 17, 2015 - Is Ostrya virginiana sensitive to juglone?
view the full question and answer

Yellowing leaves on Carolina jessamine from Las Vegas NV
March 21, 2014 - Carolina jessamine, has yellow leaves. 3 years old, grows on south wall, full sun. Same plant, in partial shade, has green leaves. Should I feed yellowish plant some nitrogen? If yes how much?
view the full question and answer

Red-backed bugs on mountain laurel (Sophoro secundiflora)
May 12, 2010 - I found red-backed bugs (in fact two end-to-end like the east Texas love bugs) on my mountain laurel which has been losing leaves. Are these bugs the culprit?
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center