In the past month, I have planted 4 raspberry canes. They're all about a foot tall. One is a Taylor raspberry, which I planted about a month ago, and it is leafing out nicely. The other 3 are Prelude raspberries, which I planted about two weeks ago. One cane is just starting to get buds, while the others don't have buds yet, but they're nice and green when I scratch them. Here are my questions:

1) Should any of these 1-foot-tall canes be pruned?

2) How long does it normally take a raspberry cane planted in early spring to start showing some buds?

3) When do raspberry plants normally start to flower in the South? In May?

4) I have another Everbearing Heritage raspberry that I planted last summer. It never had a cane, but was just kind of bushy. Anyway, it has lots of leaves now. Should it be pruned, and if so, exactly how?

Thanks for any help with these questions.