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

Sunday - September 19, 2010

From: Horseshoe Bay, TX
Region: Southwest
Topic: Non-Natives
Title: Dying branches on non-native buddleias in Horseshoe Bend TX
Answered by: Barbara Medford

QUESTION:

Our Black Knight buddleias are developing branches that die. The leaves just turn brown and the whole branch dies then another and finally the whole plant dies. Do you know what could be causing this? Thanks

ANSWER:

There are 5 members of the Buddleja genus listed in our Native Plant Database as native to North America, and all 5 are also native to Texas. The Buddleia davidii is native to China and Japan, and therefore falls out of the range of expertise of the Lady Bird Johnson Wildflower Center, which deals with plants native not only to North America but also to the area in which they are being grown. 'Black Knight' is a trade name for a selection of Buddleia davidii.

This article from  Floridata Buddleja davidii 'Black Knight' will give you some information on care of the plant. From the US Geological Survey, Biological Resources Division, you can find material on pests and diseases of this plant. In particular, note this extract from the article:

"Pests and diseases: Buddleia have very few pests but are susceptible to caterpillars, weevils, mullein moth, spider mites, fungal leaf spots and dieback."

After reading these articles, you will likely find that the soil or excess moisture in the soil with poor drainage is causing your plant problems.

Pictures of native Buddleja from our Native Plant Image Gallery:


Buddleja marrubiifolia

 

 

 

More Non-Natives Questions

Freeze damage to non-native Philodendron selloeum in Deltona FL
June 22, 2010 - My philodendrons selloeum died this past winter in the freeze,came back slowly this spring and now are suffering with very small deformed leaves. Some do grow but are getting large brown dry areas on ...
view the full question and answer

Decline in non-native crape myrtles
June 15, 2007 - I live in Round Rock and the ground is rocky about one foot beneath the surface. I have about 14 crape myrtles that have been doing very well for about 6 years now. Last year the leaves on 1 started...
view the full question and answer

Regulations for transporting plants to Texas from Florida
July 29, 2008 - We are relocating to TX from FL, I have a collection of potted palm trees and quite a few potted tropical plants (none are invasive)that I would like to bring with us, we will be traveling by car and ...
view the full question and answer

Trees to replace some non-native invasives in Deltona FL
February 02, 2012 - I would like to replace 3 large ChinaBerry & 3 large Chinese Tallow trees in my good sized back yard with some local wildlife friendly trees native to the Deltona area(first area.) What do you recomme...
view the full question and answer

Replacing non-natives and kudzu in Spartanburg SC
July 12, 2009 - I would dearly love to cut down the red tips and leland cypress, as well as the 2 Savannah hollies and 15 ft cleyera which the kudzu has overrun along my property line, get rid of a chunk of lawn and ...
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