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

Replacement of Arizona ash in Austin
October 28, 2011 - We have two Arizona Ashes in our yard that probably have maybe a decade left in them. We want to get a couple new trees started, so they will be well established once the Ashes are near their end. In ...
view the full question and answer

Irish Strawberry tree care from Sydney Australia
April 15, 2012 - Hi I have an Irish Strawberry tree - AKA Arbutis Enedo. I have had it for a couple of years now, I have it planted in the ground quite healthy soil, I feed it Dynamic lifter (chicken manuare/pellet f...
view the full question and answer

Yard Trees for Burleson, TX
July 24, 2011 - We need to replace 2 mature pear trees in our front yard, north side of the house in Burleson, TX. We are looking for faster growing trees that will last for decades that resist disease in clay soil....
view the full question and answer

Care of the non-native Aralias (Genus Polyscias)
January 04, 2008 - Today I purchased a POLYSCIAS common name "Aralia" I was told that can be happy inside, little light. Please could you inform me how to take care: feeding, fertilizing, watering needs? Does it bl...
view the full question and answer

Transplant shock in non-native Mexican Ruda
July 14, 2006 - I hope that you can help me. I planted some Mexican Ruda in a large pot. Planted it in good soil. The plant is not doing well. It's droopy and drying out. I watered it every other day. It is in t...
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.