I seem to be banging on a bit lately about the...challenges...of raised beds.
I can't help myself apparently!
My place is extremely sandy and in my climate, warming the soil is not an issue.
Raised beds made moisture-retention (or lack thereof) a real problem. Didn't matter how much
compost,
mulch, etc I used, my gardens got very dry.
They are now at, or even slightly below ground-level, and
water is not nearly such an issue.
BTW, I'm not pushing an ideology that raised beds are a bad thing in themselves, I just know I've spent a lot of time undoing a lot of work because they are inappropriate in my environment.
Actually, I just realised I might have already given you this spiel!
Many apologies.