Hello everyone, maybe you can help. Is plaster of paris good to use, is there any additives? I have read I can use it at 1/4 tsp. per gal of fertilizer/water mix to add Ca and S.
TheMasterGardener1, the plaster of Paris used for casts does contain additives to make it more quick-setting and strong. The plaster of Paris used in hobby work might not.
Check list of ingredients on the label.
Thank you. It has has Calcium, Sulfur and silicate.
I think it will work.