Q.What Is The Span Of The Roots On A Weeping Pussy Willow?
I planted a weeping pussy willow about 5 feet from my house. Is that too close? Do I need to worry about the roots on my foundation? Thanks

Certified GKH Gardening Expert
These trees have, notoriously, invasive and damaging root systems. This is not advised.
I would recommend, at least, 20 feet. More will be best, but no closer than 20 feet.
This article will help you to care for the tree:
https://www.gardeningknowhow.com/ornamental/shrubs/pussy-willow/growing-pussy-willows.htm