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

Wednesday - August 16, 2006

From: Nottingham, Other
Region: Other
Topic: Non-Natives
Title: Disease problems of non-native Weeping Willow
Answered by: Joe Marcus

QUESTION:

Could you please tell me why my weeping willow has got pink coloured leaves and seems very dry the bark is splitting and seems full of wood worm?

ANSWER:

Weeping willow, Salix babylonica is a native of China. While it is much-loved for its elegance when healthy, Weeping willow is notorious for its many problems. Any number of insects and diseases attack Weeping willow. The problem you describe with the bark and wood is likely caused by wood borers. Moreover, the fast-growing tree has very weak wood which is highly susceptible to breaking, especially during high winds.

The pink foliage exhibited by your tree could be caused by a fungus or sucking insects (usually pinkish spots) or by some other form of stress. Some willows feature naturally pink foliage in summer. While S. babylonica is not known for pink leaves, it is possible that stress could cause the change of color.

While no other tree really has the aesthetic character of Weeping willow, its weaknesses may make you want to consider replacing it with another tree that is native, and thus adapted, to your area and not prone to your tree's many problems.
 

More Non-Natives Questions

Non-native gardenias in Southampton Ontario
July 31, 2012 - I purchased 3 gardenias this year for the garden. Now I'm told that I can't leave them out all year round here in mid/western Ontario. Is this true, and if so, how do I keep them over the winter i...
view the full question and answer

Liquid glucose as substitute for sunlight from New York City
December 16, 2012 - I am curious to find out whether liquid glucose can be poured as water for mung bean plants as substitute for no sunlight. Is the possible? Will a specific amount of glucose need to be used? Can liqui...
view the full question and answer

Care for non-native cat palm
November 18, 2010 - Purchased 3 new cataractarum palms-3ft. high for indoors--how can I know when to water or how often?? I am from Canada & in Naples Florida for 6 months--I am a novice to these plants
view the full question and answer

Changing color of crape myrtle blooms
July 08, 2008 - I have 5 well established crape myrtle trees whose blooms are a very light lavender/pink color. I would like to know if there is any way to deepen or change the color of the blooms. I would prefer a m...
view the full question and answer

Roses or other flowering plants for Coleman, Texas
March 10, 2009 - I want to plant native roses at a country home in Coleman Co., southern exposure, with well water, drip system,but ,hot, dry & windy! I know the Mutabilis does well in Austin, but, is it suitable for...
view the full question and answer

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