Heirloom Seeds
Waltham 29 Broccoli Seeds – Non-GMO Heirloom
by Organo Republic · United States
Buy directly from Organo Republic. Final price and availability confirmed at checkout.
Waltham 29 broccoli ( Brassica oleracea var. italica ) is a cold-tolerant heirloom that produces large, tight blue-green central heads followed by plenty of side shoots. These broccoli seeds grow into sturdy, uniform plants bred for fall harvest and
Read moreRead less
dependable yields even in cool weather. It’s a proven home-garden variety that keeps giving long after the main head is cut. Who it’s for Great for cool-season gardeners who want a reliable, high-yielding broccoli with a big main head plus weeks of side shoots. How & when to plant Start indoors 5–6 weeks before the last spring frost, or sow in midsummer for a fall crop. Plant seeds 1/4–1/2 inch deep and transplant 18 inches apart in full sun with fertile soil. Broccoli prefers cool weather (60–70°F) and grows well in USDA zones 3–9. Steady moisture produces the firmest heads. Harvest Main heads are ready in about 70–85 days. Cut the central head while the buds are still tight and green, before any yellow flowers appear; the plant will then produce smaller side shoots for weeks. Harvest in the cool morning for the crispest heads. Benefits & uses Steamed, roasted, stir-fried, or eaten raw, Waltham 29 offers sweet, tender florets and stalks for everyday meals. Its continued side-shoot production stretches the harvest well beyond the first cutting. Growing guide: New to this variety? Read our full guide, How to Grow Broccoli From Seed , for step by step sowing, spacing, and harvest tips.