posted 3 years ago
Willows produce rooting hormone naturally to help reestablish disturbed wetlands, with the increased biomass holding water for more willows eventually. I just soak 18” willow branches in a 5gal bucket, often with cuttings I’d like to root (ie kiwi) alongside. I also water cuttings in potting soil or river sand with the willow water. Changing/using the water every couple days helps keep the water oxygenated so the willows ultimately root, and I then plant them around wetlands.
This is all just my opinion based on a flawed memory