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

Tuesday - April 15, 2008

From: Houston, TX
Region: Southwest
Topic: Pruning, Watering, Shrubs
Title: Failure to bloom of Texas Mountain Laurel
Answered by: Barbara Medford

QUESTION:

My +/- 4 yr old Tx. Mountain Laurel, has never bloomed. It is in full sun. I sometimes (minimal) fertilize it. I've pretty much planted it and let it grow. Its been pruned back last year when someone suggested that and it still hasn't helped. What else can I try?

ANSWER:

You are not the only one to face this problem with Sophora secundiflora (Texas mountain-laurel). Please read this previous Mr. Smarty Plants answer to a similar question. Without being too repetitive, two or three possibilities come to mind. In the first place, you are in Houston, while this plant is used to growing in rocky soil on limestone ledges. This is not to say it won't grow in Houston, but make sure your drainage is very good. Your tree shouldn't be transplanted, it is very difficult to do so because of its roots, and if they are damaged the tree will most likely die. However, you can be careful not to have the tree in the path of any unusual water drainage, and water it much less than other garden plants. Second, this tree is often referred to as a "problematic" bloomer, meaning you might get blooms and you might not, period. Third, while its cultural information calls for full sun to part shade, it will bloom better in full sun. Prune after the flowering period (February to March), as it blooms on year-old wood, and cut way back on nitrogen fertilizer. Any plant will lose interest in blooming and put on more leaves if too much nitrogen is applied.

 

More Watering Questions

Plant for graveside in New Jersey
August 07, 2010 - I am looking for a plant to put on a graveside in southern New Jersey. The problem is that the area is very hot & dry and the plant would only receive rain. I am interested in a perennial. Thanks
view the full question and answer

Brown, dry leaves on weeping willow tree
May 01, 2008 - We live in central TX and have just planted a weeping willow tree. Our back yard has a retention pond and ravine that parallels our property and we were told that the weeping willow will do perfectly ...
view the full question and answer

Watering a Chinquapin Oak in Austin, TX
June 22, 2014 - I have a question about watering. I planted a Chinquapin Oak about 7 months ago and it's about 8 feet tall and doing well. I water it weekly on a slow drip for about an hour. I expect that my job is ...
view the full question and answer

Non-native lambs ears wilting in heat from Fredericksburg TX
October 19, 2011 - 3 days ago I had professional landscaping done in an area with plants that tolerate heat & sun well. We planted 7 healthy, large lambs ear & mulched. Everything planted is doing well except the lambs ...
view the full question and answer

Possible freeze damage in Wax Myrtle from last winter in Bastrop, TX
July 25, 2011 - Our Wax Myrtle is about 7 yrs old and in good shape until this past winter when we had several very hard freezes. Now several of the large branches are dead and more are dying each month. We have not ...
view the full question and answer

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