Hi 843rphyllis! Welcome to ATP!
I'll talk about raised beds anywhere.
Do you already have some, and if so, what style do you like best?
I like to amend the soil
under my raised beds so the root zone can eventually extend deeper. So mine are really raised-and-sunken beds.
But then I have to improve the drainage so the amended soil that is
below grade doesn't become a water-logged mud wallow. My unimproved clay has almost NO drainage, and it takes holes DAYS for a hole to drain empty.
I dig at least a slit trench from the low point of the "sunken" bed to some lower part of the yard. Those can be just a few inches wide. In my case, the width of my mattock blade.
That prevents this:
