Willow Trees

Willow Tree – Proximity to a House


ianboyling added on May 16, 2016 | Answered

We are about to purchase a house that has a 40 foot willow tree in the garden that is approximately 40 foot from the house. Is this an issue? I understand the roots of the tree may well exceed the height of the tree and we are concerned that the roots may have impacted to foundations.


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ANSWERS
kh0001
Certified GKH Gardening Expert
Answered on May 17, 2016

Willow trees are definitely known to have invasive roots, so your concern is valid, however there's no way of knowing how extensive the root system is without digging around it. Ideally, the tree should have been planted more like 50 feet away from the house but even then, if it doesn't affect the foundation, there's still a chance it could damage pipes. You could consider installing a root barrier, and this article may help you with that:

https://www.gardeningknowhow.com/ornamental/trees/tgen/problem-tree-roots.htm

This article contains more information on trees with invasive roots:

https://www.gardeningknowhow.com/ornamental/trees/tgen/trees-with-invasive-roots.htm

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