En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Dying branches on non-native buddleias in Horseshoe Bend TX

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

Texas native plants in an indoor space in Dallas
July 31, 2009 - Is there a native Texas plant that would be suited for an indoor application, such as large planters in a lobby space?
view the full question and answer

Native grasses for golf courses from Austin
October 06, 2013 - I may be working on two different golf courses and wanted to know if any native or hybrid native grasses would work for the fairways and rough areas? The rough areas are no problem as a number of ...
view the full question and answer

Identification of tree in California
May 02, 2012 - A medium-size tree with shiny green leaves toward the bottom and garnet red ones toward the top of the tree. The leaves are narrow with saw-toothed edges. There are clustered small white flowers with ...
view the full question and answer

Pruning non-native razzmatazz rose from Canton MI
April 26, 2010 - I have 5 "hardy" rosebushes called "Razzamatazz" which are about 3 years old. I don't know how to prune them properly. I do cut the dead bloom back just before the "leaf of 5", which seems to...
view the full question and answer

Problems with non-native yellow lantana from Elgin TX
June 17, 2012 - Why do my yellow lantana buds turn brown and do not open fully? The sprinkler system does not spray onto the lantana.
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