Contact Us Host an Event Volunteer Join

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 - March 25, 2015

From: Kingsland, TX
Region: Southwest
Topic: Diseases and Disorders, Shrubs
Title: Leucophyllum Resistant to Verticillium Wilt
Answered by: Anne Van Nest

QUESTION:

I need to know which large shrubs are resistant to verticillium wilt? I believe that a few of our Elaeagnus have succumbed to this disease, but being over 15 years old, I am not positive. I am thinking of replacing them with Silverado sage or something similar.

ANSWER:

Verticillium wilt has a huge list of susceptible plants from herbaceous to trees, and members of the Elaeagnus genus are susceptible to this vascular disease. Leucophyllum frutescens (Texas sage) is not listed as susceptible so it is a good replacement plant.

 

From the Image Gallery


Cenizo
Leucophyllum frutescens

Cenizo
Leucophyllum frutescens

More Diseases and Disorders Questions

Problems with spreading juniper in Sturgis, SD
May 25, 2011 - I live in Sturgis, South Dakota and I have two different varieties of Spreading Juniper in the yard as ground cover. They have developed an orange colored fungus that goes dormant in the winter but a...
view the full question and answer

What's that sticky stuff on plants under many trees?
August 23, 2010 - Here in Austin, I've recently noticed a sticky film appearing on shrubs, flowers, grass, etc. under many trees. It appears to be coming from the trees under which they are planted. The sticky film ...
view the full question and answer

Freeze damage to Mexican olive in Austin
December 13, 2009 - I have a Mexican Olive tree/bush. It is young - about 8 ft. tall. This last freeze in Austin made many of its leaves turn black. I got this from your database: "Its native range extends no farther...
view the full question and answer

Theory for live oak shoots from Austin
August 25, 2011 - More on preventing suckers from coming up around live oaks in Austin. I too have been puzzled - why some live oaks have shoots, and not others. Posting here says different varieties have suckers. ...
view the full question and answer

Diseased non-native red tip photinias from Richmond VA
April 08, 2014 - Our red tip trees have a while substance on the bark at the base of each tree..look like some kind of fungus or mold, but we don't know how to get rid of it. Please help.
view the full question and answer

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