How invasive are globe willows? Also, what is the distance they should be from the septic system and water lines, etc?



They are not invasive at all in terms of weediness, since they are male clones that produce no seed. I imagine they sprout from their roots so they could be a little weedy near the parent tree.

I wouldn't plant a willow of any kind other than a shrub, since they grow too fast and are weak wooded and insect and disease-prone. If you have a septic system they should be as far as possible from it (50 feet or more). Water lines, etc. aren't much of a worry.

Posted on 10 Sep 2007

Michael Kuhns
Forestry Specialist

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