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?


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

Sunday - April 16, 2006

From: Georgetown, TX
Region: Southwest
Topic: Non-Natives
Title: Non-native Sandankwa viburnum (Viburnum suspensum) damaged by freeze
Answered by: Nan Hampton and Joe Marcus


We live in Georgetown. My Sandankwa Viburnum seem to have been affected by the late freeze. There are now very few leaves and no flowers/buds. Should I cut the plants back, leave them alone, or give up?


Sandankwa viburnum (Viburnum suspensum) is native to Japan. You do live within the USDA Hardiness Zones recommended for this plant; however, other stressful environmental factors such as drought conditions on top of the freezing temperatures may have adversely affected your plant. Pruning depends on flowering season. Since this species flowers in early spring, they should be pruned right after flowering. Now would be a good time to do it even though your plant hasn't flowered. You might consider a native Viburnum, Rusty black-haw, (Viburnum rufidulum) as a good replacement for this cold-sensitive species.

More Non-Natives Questions

Best for Austin-non-native loquat or kumquat?
May 04, 2010 - I was wondering which tree is suited better in the Austin,TX, area, the Loquat or the Kumquat, do they lose their leaves in the winter and do they bear fruits?
view the full question and answer

Toxicity of non-native, invasive Wedelia trilobata
March 19, 2007 - Could you tell me if Wedelia trilobata is toxic to animals? It grows so voraciously where I am that I am wanting to use the whole plant to feed to my large tortoises (who are also voracious for edibl...
view the full question and answer

A non-native Japanese Maple for Branchburg NJ
May 12, 2010 - I am landscaping around my house and am looking for a tree that wont eventually grow too large. I thought maybe a bloodgood Japanese maple. Any suggestions would help
view the full question and answer

Ants in vegetable garden in Muskogee OK
May 25, 2011 - I have ants in my vegetable garden this spring - I think because of all the rain. I think they are the culprits that ruined my spinach and swiss chard. They have left all the lettuces alone..but you...
view the full question and answer

Pictures of Bastard Cabbage from Dallas TX
April 07, 2012 - HI! Re your March 12 posting: The USDA Plants website pictures two very different looking plants identified as Rapistrum rugosum (bastardcabbage). Would you please post a photo with leaf and bloom ...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
© 2015 Lady Bird Johnson Wildflower Center