Here are some tips from the NC Cooperative Extension Center:
Plant your small fruit plants, grape vines and fruit trees before the buds break.
March is a good month to transplant trees and shrubs
New shrubs and ground covers can be planted the entire month of March. Be sure to follow your planting plan.
Plant seeds of the following perennials: columbine, hollyhock, coreopsis, daisy and phlox. Sweet William can also be planted this month.
New rose bushes can be planted this month.
Plants of broccoli, cabbage and cauliflower should be set out in the garden in mid-March.
The following vegetables can be planted this month: beets, carrots, Chinese cabbage, kale, kohlrabi, lettuce, Swiss chard, turnips, potatoes,cabbage, broccoli, and cauliflower.
Start any annual flowers or warm-season vegetables inside your home that are not commercially available in early March.