Some kinds of peas are for shelling, some have edible pods--and some can be harvested either way. Bush and vining types are available. In early spring (or in early fall, for a fall crop), sow seeds 1 inch apart in rows spaced 2 to 3 feet apart. Thin seedlings to 2 to 4 inches apart. Set up stakes or trellises for vining types at planting time. Harvest 55 to 70 days after sowing.