Explore Plants

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
    
 

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

Sunday - April 27, 2008

From: Austin, TX
Region: Southwest
Topic: Pruning, Transplants, Trees
Title: Failure of older branches on Bauhinia lunarioides to thrive
Answered by: Barbara Medford

QUESTION:

We planted a sapling of the Anacacho Orchid Tree (Bauhinia lunarioides) winter (Jan, Feb?) and now it has leaves and blooms - but only off of new branches near its trunk, as the old branches haven't done anything, and appear to be dormant or dead. Should I wait for them to come back as this is normal, or did something happen to my little tree and I should just prune the old growth off and let it start anew?

ANSWER:

The Bauhinia lunarioides (Texasplume) is a very hardy desert plant, native to a few counties south and west of Austin. Since you planted it recently, we're wondering if it might be suffering from transplant shock. Sometimes roots are damaged, or don't get enough deep watering in their very early stages of development, both of which can cause visible damage on the upper part of the plant. Since Austin is about the northern limit of its range, experts suggest that it be planted on the south side of a building, protected from winter winds. We didn't have much winter this past year, but cold might have caused a problem in a newly-planted tree. Also, we saw sun exposure recommended ranging all the way from part shade, to dappled shade to full sun. Again, a newly planted tree getting more sun than it was used to could have suffered some leaf loss.

Probably your idea of trimming back what is dead is the best. Since it has already flowered, it can hardly be expected that some part of the plant is still dormant. Nipping off the dead branches will improve the appearance of the tree, and the tree won't waste time and energy trying to get sap up to those dead spots. If it is in full sun, it might be good to give it a little more water than you usually would, just for a while. Stick a hose down in the loose dirt around the roots, and just let a tiny trickle go in until the water is on the surface. This tree, like all desert plants, needs very good drainage, so don't overdo the water!

 

 

More Transplants Questions

Transplanting crabapple tree from root sprouts
March 24, 2005 - I have a Crabapple tree that is sending up sapling shoots. Can these be dug up and planted?
view the full question and answer

Living fence of native plants for Ojai, CA
September 20, 2008 - I would like to build a "green fence" about 10-15 feet tall. I live in Ojai, CA where we have VERY hot summers and it goes below freezing every winter. The soil does not seem to drain well..it is e...
view the full question and answer

Propagation on bamboo in Washington State
August 30, 2008 - I have been trying for some time to grow bamboo in my garden. They rooted very well in the house but as soon as I put them in a large planter under the fir trees they turned yellow.They have a large h...
view the full question and answer

Repotting from 4-inch pots
April 18, 2006 - Hello. A week ago I purchased some native plants at the wildflower center plant sale. I would like to know how to repot these seedlling native plants. They are in 4" pots right now. I have as follows...
view the full question and answer

Transplanting an immature Sweet Bay Magnolia
May 30, 2006 - Hi Mr. Smarty Pants: I just found what I think is a Magnolia Sweet Bay growing wild next to an oak and a pine tree in my back wooded yard. It has blooms on it and is about 2 feet tall. There are tw...
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.