I was talking to my cousin who is a landscaper and he uses an almost black "vegetable blend" soil from a specific supplier with fantastic results. He uses this blend straight and does not till it in. His veggie garden is raised about 24" and he changes the soil every other year. He told me the secret is that the supplier adds sheet rock which contains gypsum into the blend and his veggie garden and plants seem to always be blooming and fruiting.
Anyone else do this or hear of this? New to this site so looking for lots of pointers..thanks.
Also, if you're doing your own compost, how much sheet rock goes in there? Is there a formula for this?