I bought a powdered Sulphur just in case I might need it (hupefuly not) - just to be prepared... And now I am reading `material safety data sheet` and it says that sulphur shouldn't come to contact with charcoal and phosphorus. I add charcoal to my medium as it has been recomended in every book i have read and phosphorus is ingredient of an orchid food. I am bit confused here.... is is safe to use it or not? or is there a magic safe way how to use it without harming an orchid? or am I just being paranoid
Lenka