sel d'Epsom

CONT: With eastern, acid soils, epsom salts, magnesium sulfate, can be added to promote healthier growth of plants such as tomatoes. Due to the acid nature of these soils, magnesium is unavailable to plants and gardeners benefit from fertilizing with epsom salts.
OBS: Used as a cathartic and to reduce inflammation. Most commonly used as the therapeutic agent in a hot bath.