Park Seed has been providing American gardeners with vegetable seeds, perennial seeds, flower seeds, seed-starters, supplies and tools since 1868.

Seedway is a full-line seed company, marketing farm and turf seed in the northeast U.S. and vegetable seed from the Rocky Mountains to the east coast and Ontario, Canada.

Southern Exposure Seed Exchange is a wonderful source for heirloom seeds and other open-pollinated (non-hybrid) seeds with an emphasis on vegetables, flowers, and herbs that grow well in the Mid-Atlantic region.

The Maine Potato Lady produces certified seed potatoes, onion sets, French shallots, "potato onions," and fall-planted garlic.