Explore Plants

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
    
 

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

Thursday - August 13, 2009

From: Detroit, MI
Region: Midwest
Topic: Non-Natives, Pruning, Trees
Title: Corkscrew willow damage to roof in Detroit, MI.
Answered by: Jimmy Mills

QUESTION:

I have a corkscrew willow (Detroit, MI) that is huge and whose branches hang on top of the asphalt shingles of my mobile home. It has now been discovered that these shingles, under the branches, are disintegrating. Could this be due to the exudate from this corkscrew willow?

ANSWER:

The Corkscrew willow  (Salix matsudana) has become a popular ornamental tree in the U.S. due to its contorted and twisted branches and twigs. The winter branch pattern is especially interesting interesting. However, since it is non native to North America (its origin is China), it lies outside our expertise here at the Lady Bird Johnson Wildflower Center where we focus on  and  encourage the cultivation, conservation and preservation of wildflowers and other native flora throughout North America.

If the limbs of the tree are actually in contact with the shingles of your home, I think that a combination of accumulated leaf litter holding moisture and the rubbing of the branches on the roof would be enough to help deteriorate your shingles. 

Once you have replaced the damaged shingles, you might consider checking out this site for tips on pruning the lower branches of your willow tree.

 

 

 

 

More Non-Natives Questions

Problems with non-native corkscrew willow in Homerville GA
May 25, 2009 - I have a corkscrew willow tree and it the branches are turning dark and dying. What could be the problem?
view the full question and answer

Freeze damage to non-native Sago Palms in Red Rock TX
April 19, 2010 - I have 4 beautiful large sago palms in my rural Texas yard. All 4 have been damaged by several hard freezes this winter. All fronds are brown, with a little green at base of inner fronds. Are they ...
view the full question and answer

Non-native peanutbutter tree suckering in Oregon City OR
August 02, 2011 - I have a beautiful 'peanutbutter tree' in my yard. I have noted that there are plantlets coming up that appear to be attached to the main root(s) of the tree. I have been breaking them off as I don...
view the full question and answer

Care for non-native Desert Rose (Adenium obesum)
August 08, 2006 - I was given a desert rose and i'm looking for general information about planting, watering, how much sun it needs etc. I hope you can help. Thanks
view the full question and answer

Flowering landscape plants for Montgomery TX
March 07, 2013 - Hello I live in Montgomery TX. I am looking for low growing evergreen flowering plants for the front of my three deep beds. The first plant closest to the foundation is loropetalum, then I have a blue...
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.