This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages)(Learn how and when to remove this template message)
Willow water is a biological method to extract the rooting hormones indolebutyric acid (IBA) and salicylic acid (SA), that are present in sufficient quantities in the Willow (Salix) trees to extract as a liquid that stimulates root growth.
- Ohio State University Extension, "Gardening Folklore".