First Organic Soil Bed Ever. Thoughts?

[eastcoastjoe]

That is what I used for the entire bed. OSF is Oyster shell flour

In that case your going to want to add more amendments. Neem, kelp , crab , oyster shell you can use those all at 1 cup per cubic foot. Crab shell is essentially pure calcium just like oyster shell so I don’t think you need both. the rock dust I would use at least 2 cups per cubic foot.