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

Saturday - June 26, 2010

From: Las Cruces, NM
Region: Southwest
Topic: Non-Natives, Diseases and Disorders
Title: Yellowing leaves on non-native globe willow in Las Cruces, NM
Answered by: Barbara Medford

QUESTION:

I live in Las Cruces, NM. I have a good size globe willow tree. The leaves are turning yellow and brown dryness at tips and leaves are falling off. Does it just need water?

ANSWER:

The Lady Bird Johnson Wildflower Center is dedicated to the growth, protection and propagation of plants native not only to North America, but to the area in which they are being grown. 

 

Salix matsudana, globe willow, is a native of eastern Asia, and therefore out of or range of expertise. Willows generally are fairly weak, short-lived trees, susceptible to many insects and diseases, as well as dropping a lot of litter. The globe willow is often infected with slime flux, a bacterial disease that is soil-borne. They are frequently found in the Rocky Mountain area, in warm valleys, so while they are not native to North America, they are at least well adapted to the area in which you live. You are in USDA Hardiness Zone 8, so your willow can probably survive, but we would certainly do supplemental watering when the weather is hot and dry. 

For more close to home advice, contact the New Mexico State University Extension Office for Dona Ana County.

 

 

 

 

More Diseases and Disorders Questions

Swarming insects on non-native willow in Washington PA
September 25, 2011 - I have had a very large, beautiful pillow willow bush/tree growing next to our garage for about 8 years. Last year at the end of August, it began to attract white-faced hornets and yellow jackets by t...
view the full question and answer

Failure of TX bluebonnets to thrive
May 28, 2015 - We have had extraordinary luck with bluebonnets growing in our driveway of decomposed granite--until last year and this year. The bluebonnets seem to be drying up and wilting away. The ones in other a...
view the full question and answer

Problems on Prickly Pear Cactus in Illinois
November 19, 2014 - I have a fungus on my prickly pear cactus that is not a bug. I tested it and my fingers didn't turn red when I squeezed them. So how do I get rid of this as it is spreading to my other cacti?
view the full question and answer

Problems with Juniperus ashei in San Antonio
May 27, 2011 - I live in San Antonio and have many juniper trees. On inspection I do not see insects or any other form of damage, but my trees are turning brown and dying. I have already had to cut one down. When...
view the full question and answer

White fuzz on Christmas tree from Lewisburg PA
January 04, 2011 - Our Canaan fir Christmas tree is now coated with white fuzz after being up for 4 weeks. The fuzz looks like spider webs, but it is also in clumps around the needles. When you rub your finger on it, ...
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center