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

Friday - June 22, 2007

From: Austin, TX
Region: Southwest
Topic: Diseases and Disorders, Shrubs
Title: Vascular wilt in Rhus virens
Answered by: Nan Hampton and Joe Marcus

QUESTION:

Hi Smarty: Our evergreen sumac grew beautifully this spring (it is about 2 years old -- we got it at the LBJ Wildflower Center plant sale). Then its leaves suddenly drooped last month (May) and turned purplish or brown and it basically died very quickly. We have had lots of rain, including one rain event that sort of flooded the sumac because the gutter overflowed. Still, I can't believe it would up and die from too much rain (we did not water it). I asked you the wax myrtle question a couple weeks ago. The sumac was near the wax myrtle. Maybe it got that fungus too? I saw very little powder on it. Sincerely: Color Me Confused in Austin

ANSWER:

Rhus virens (evergreen sumac) is susceptible to vascular fungal disease, also called vascular wilt; but given your recent problem with your wax myrtle, we suspect something else could be going on here. Is it possible that you or one of your neighbors has recently used herbicides that could have accidentally made their way through the runoff from the rain to your plants? It might be a good idea to contact the Travis County Extension Office about having your soil tested or testing the affected plants for pathogens.

 

 

More Shrubs Questions

Flowering evergreen plant for ceramic pot
April 02, 2013 - I have a deep ceramic pot that I would like to put in a flowering evergreen plant or bush. It is on the deck facing west but with north and south exposure and afternoon sun.
view the full question and answer

Edibility of Washington Hawthorn berries from Williamsport PA
February 22, 2014 - Please tell me if Washington Hawthorn berries and leaves are edible and if so, how to prepare them. Thank you!
view the full question and answer

Non-native Podocarpus macrophyllus in Ft Worth TX
November 12, 2011 - I know this question does not pertain to a native plant but I've spent too much time not finding an answer to my question. I have many mature Podocarpus macrophyllus bushes at my house I purchased in...
view the full question and answer

Wound from non-native date palm thorn Naples FL
November 12, 2012 - Was trimming my pygmy date palm when a frond fell and a thorn pierced my rubber gloves and stuck me in the web of skin between my thumb and forefinger. Did not see a broken thorn but area where struc...
view the full question and answer

Correcting overgrown Savannah holly in Goldsboro NC
April 24, 2010 - I have an overgrown Savannah Holly. How do I go about correcting?
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