>>2807263You want lits of fibres to maintain water, and mid-level amounts of fertilizer (too much makes the tomatoes and peppers grow to heights where you'd need a ladder to harvest them).
What I'd do is get some horse manure (one year old is best, but you can use fresh for everything that isn't roots, and you can often get it for free since horse owners want to be rid of it), then mix that in with the soil you already have, or (untreated) wood chips and sawdust, if your soil is too bad.
>potatoes in a raised bedYou're gonna have a bad time getting them out.
