I used from Scotts regular potting soil I believe... no additives.

I added probably around 2 teaspoons full of bone meal.
YaddaYaddaYadda247 Reviewed by YaddaYaddaYadda247 on . Leaves turning yellow with brown spots! These two plants started flowering naturally outside here in FL. Now the bottom leaves are yellow, spotted with brown, and drying up. Soil mixture: Dolimite Lime Blood Meal Bone Meal Espoma Epsom Plus The ratios of soil additives are added according to the instructions on the bags. Rating: 5