En Español

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

Friday - July 03, 2009

From: Villanova, PA
Region: Mid-Atlantic
Topic: Non-Natives
Title: Problems with non-native weeping willow in Villanova PA
Answered by: Barbara Medford

QUESTION:

My weeping willow (6 years old,80+ft tall),up until this year used to be full and healthy. Last year I trimmed the lower portion of the trunk by cutting off the low hanging branches, but this year so far my tree is not full, the strings are not bloomed with long healthy green leaves. I live in Philadelphia suburbs, I believe zone 6-8. The leaves are pale green and twisted, my landscaper said nothing wrong with it, I do not trust his answer.

ANSWER:

Thank you for your question. While we would like to answer all questions we receive, Mr. Smarty Plants' expertise is limited to plant species native to North America, their habitats and cultivation. Limited resources require us to decline answering questions that delve into other areas. We hope you understand.

Non-native to the United States, Salix x sepulcralis is a hybrid of a Chinese species (Peking willow) and a European species (white willow), and is said to grow in Zones 5 to 8 in the United States. It is weak-wooded, fast-growing and, therefore, short-lived. It has aggressive roots, can lift sidewalks and interfere with sewer lines, often growing on soil surface, making a problem with mowing. It is susceptible to a number of pests and diseases, and notorious for littering the ground beneath it. You might check out this University of Florida Extension website on Weeping Willows for more information as well as this Q&A from North Dakota State University Extension on weeping willows.The UBC Botanical Garden Forum is also a good source of information on non-native plants. 

 

More Non-Natives Questions

Are non-native hostas causing fly invasion from Eastpointe MI
July 14, 2013 - I live in Michigan with a small backyard. I have 5 large hostas with the purple flower blooms which are located by my patio. I was wondering if they can be causing my large population of unwanted flie...
view the full question and answer

Saving non-native crape myrtles watered with salt water in McAllen TX
May 27, 2010 - I have a crape myrtle plants that were accidentally watered with salt water from a purifier that was drained. They are dying and turning brown. What can I do to revive them?
view the full question and answer

Non-native crape myrtles in Noblesville IN
August 01, 2012 - Can Crepe Myrtle trees be grown in Noblesville IN 46060? I believe we are zone five.
view the full question and answer

Japanese lilac trees in Lehi UT
July 31, 2010 - Dear Mr. Smarty Pants, We live in Utah and this past spring planted three Japanese Lilac Trees in the lawn next to the deck hoping they would one day provide some shade. They are planted in full sun ...
view the full question and answer

Care of non-native Mandevilla
July 01, 2006 - I have purchased 2 Red Riding Hood Mandevilla's. The tag on it says it blooms spring to frost, full sun, ave size is 8 feet tall & spreading. I live in the Tampa FL area. Does this plant grow as a sh...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | JOBS | SITEMAP | STAFF INTRANET
© 2016 Lady Bird Johnson Wildflower Center