epsom salts not organic.also let tap water sit out for 24 hrs,to get rid of chlorine,that will kill a organc grow.use dolimite lime and then u shold not hav to supoosely worrie about ph.
buthead Reviewed by buthead on . Organic PH adjusting Minerals Greensand N= 0 P= 1.5 K= 7 comments- Mined from old ocean deposits; used as soil conditioner; it holds water and is high in iron, magnesium, and silica - 32 trace minerals in all. Eggshells N= 1.2 P= 0.4 K= 0.1 comments- Contais calcium plus trace minerals. Dry first, then grind to powder. Limestone (dolomitic) N= 0 P= 0 K= 0 comments- Raises pH, 51% calcium and 40% magnesium. Rating: 5