Rasta Roy
Well-Known Member
I'm trying to leave the lime out of my next soil mix, I don't really need the pH raise. Since I won't have the lime I believe I'll need something for calcium and magnesium right? I hear oyster shell is a good source of calcium so I picked some up. Is Epsom salts my only source for magnesium? Follow up question, is the bag of Epsom salts that I have for my bathtub the same as the one I'd buy at the grow store? They both say magnesium sulfate. I've got bottles of fulvex and huvega (which I have a sneaking suspicion is the same thing as fulvex) that I can add in the water instead of the espom salts in the soil mix. But they both say derived from magnesium sulfate so it seems like it wouldn't be that different than the Epsom.
Soil mix is gonna be
50% perlite
40% sphagnum peat moss
10% compost
Amended with
Kelp Meal
Fish Bone Meal
Azomite
Oyster Shell
Gypsum
I've got Greensand I can throw in too but if I do it's a long term amendment so I don't plan on throwing in much.
Then I'm gonna top dress with worm castings and feed with guano teas when necessary (I've got a mad stock pile of subleaves guanos).
Anything I'm missing here or don't need? Is the gypsum necessary? Yay or nay to Epsom salts as a magnesium source? I've read something about it not being the best source.
Soil mix is gonna be
50% perlite
40% sphagnum peat moss
10% compost
Amended with
Kelp Meal
Fish Bone Meal
Azomite
Oyster Shell
Gypsum
I've got Greensand I can throw in too but if I do it's a long term amendment so I don't plan on throwing in much.
Then I'm gonna top dress with worm castings and feed with guano teas when necessary (I've got a mad stock pile of subleaves guanos).
Anything I'm missing here or don't need? Is the gypsum necessary? Yay or nay to Epsom salts as a magnesium source? I've read something about it not being the best source.