What to do with vegetable garden soil after harvest?

4 years ago

My first vegetable garden has broccoli, cauliflower, Lacinato kale, and Swiss chard. I had some cabbage worm and slug issues early on, but was able to mitigate them. The garden is in a raised bed and I used a really nice nursery mix from my expensive local landscape supply store. I want to plant peas, bibb lettuce, shallots, and sweet mini-peppers in the Spring.

I would prefer not to replace my soil, but will do so, if necessary. What would I have to do to be able to reuse it? I live in a microclimate in South San Francisco (zone 10a) where we get decent sun all year round (believe it or not) and almost never any frost.

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