Anyone have advice on growing raspberries in a high-desert environment? I have ordered 12 plants from Gurneys and will be planting them on an east-facing slope. The soil is (well, was) a combination of sand and heavy clay. The PH is dead-on neutral, but nutrients were non-existant. Over the past year, I've mixed straw, peat moss and manure into the area they'll be planted in, and will be adding a couple buckets of commercial compost just before planting.
So, how far about should they be planted? How often do they need to be watered, and how heavily? Do they need mulching? Are you supposed to cut the canes each year (I read this somewhere, but don't get it, since the wild raspberries I'm familiar with obviously don't get cut annually)?
Any comments or other advice would be greatly appreciated!