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