Grow a versatile and flavorful classic with Broccoli Waltham 29! Developed by the University of Massachusetts in the 1950s, this adaptable heirloom broccoli thrives in both spring and fall plantings. Known for its beautiful dark green to bluish-green heads and exceptional side shoot production, Waltham 29 is one of the most reliable and widely grown heirloom broccoli varieties ever developed. The plants produce medium to large primary heads followed by an extended flush of side shoots after the main head is cut — significantly prolonging your harvest window compared to hybrid varieties. Strong disease resistance and consistent performance across diverse growing conditions make it forgiving for both experienced growers and beginners. Ready to harvest in approximately 75–85 days.

Germination Rate: 97%. Test Date: 5/26. TLM.

Texas Minimum Germination Rate: 75%.

Why Choose Broccoli Waltham 29?

• Heirloom Seed: Passed down through generations for at least 75 years for reliable harvests and authentic flavor.
• Non-GMO Seeds: Plants whose DNA structure has not been altered in ways that do not occur naturally through traditional breeding methods.
• University-Developed Classic: Bred by the University of Massachusetts in the 1950s — one of the most rigorously developed and widely trusted heirloom broccoli varieties available.
• Exceptional Side Shoot Production: After the main head is cut, plants produce an extended flush of tender side shoots — dramatically extending the harvest season for weeks beyond the primary cut.
• Beautiful Dark Blue-Green Heads: Dense, well-formed heads with tight florets and attractive coloring — premium presentation for markets, CSA boxes, and home kitchens.
• Cold-Hardy & Frost-Tolerant: Light frosts actually sweeten the flavor — one of the best broccoli varieties for fall planting and late-season harvests.
• Strong Disease Resistance: Consistent performance across diverse growing conditions — forgiving for beginners and reliable for experienced growers.
• Easy to Grow: Forgiving of small mistakes — a great choice for beginner and experienced gardeners alike.

Planting Tips for Success

• When to Plant: Start seeds indoors 6–8 weeks before last spring frost, or 10–12 weeks before first fall frost for a fall crop. Transplant outdoors when seedlings are 4–6 inches tall.
• Sunlight: Full sun — at least 6–8 hours of direct sunlight daily for strong head development and vigorous plant growth.
• Soil: Rich, well-drained soil with a pH of 6.0–7.0. Amend generously with compost before planting. Slightly alkaline soil (pH 7.0) helps suppress clubroot disease.
• Planting Depth: Sow seeds ¼–½ inch deep indoors. Transplant seedlings outdoors when 4–6 weeks old.
• Spacing: Space plants 18–24 inches apart in rows 24–36 inches apart to allow for full head development and air circulation.
• Watering: Keep soil consistently moist — about 1–1.5 inches of water per week. Inconsistent watering causes hollow stems and premature bolting.
• Support: No staking needed at standard spacing. In windy locations, hill soil around the base for stability.
• Fertilizing: Apply a nitrogen-rich fertilizer at planting and side-dress with nitrogen when plants are 6–8 inches tall. Nitrogen is critical for lush, large head development.
• Harvesting: Cut the main head when florets are tight and dark green — before any yellowing begins. Side shoots will continue for several weeks. Harvest shoots at 3–6 inches. Light frost sweetens flavor significantly.

Why Choose David's Garden Seeds®?

• Veteran-Owned: Supplying premium seeds since 2009.
• GO TEXAN Certified: Supporting local agriculture and communities.
• Integrity Pledge: David's Garden Seeds has taken the Seed Integrity Pledge.
• Great Customer Service: David answers all customer service questions. Usually within a few minutes.
• Vegetable Seed License: David's Garden Seeds has been granted a Vegetable Seed License for the State of Texas.

Cooking Methods

• Roasting: Toss florets with olive oil, salt, and garlic. Roast at 425°F for 20–25 minutes until edges are caramelized and crispy — the most flavorful preparation for fresh broccoli.
• Steaming: Steam 5–7 minutes until tender-crisp. Finish with lemon juice, butter, and flaky salt for a simple, elegant side dish.
• Stir-Frying: Blanch briefly, then stir-fry with garlic, ginger, soy sauce, and sesame oil for a classic Asian-inspired preparation.
• Broccoli Cheddar Soup: Simmer florets and stems in broth, puree partially, and finish with sharp cheddar for a classic comfort soup.
• Raw/Fresh: Use fresh florets with hummus, ranch, or dip — Waltham 29’s tight, dense florets hold up beautifully on crudité platters.
• Blanching & Freezing: Blanch 3 minutes, cool in ice water, and freeze for up to 12 months.

Order Waltham 29 Broccoli Seeds Today

Order yours today and grow your own fresh Waltham 29 broccoli in your spring and fall gardens.

Nutritional Information

Per 1 cup (91g) raw broccoli (harvested vegetable, not planting seeds):

• Calories: 31
• Total Fat: 0.3g (0% Daily Value)
• Sodium: 30mg (1% Daily Value)
• Total Carbohydrates: 6g (2% Daily Value)
• Dietary Fiber: 2.4g (9% Daily Value)
• Total Sugars: 1.5g
• Protein: 2.6g
• Vitamin C: 81.2mg (90% Daily Value)
• Vitamin K: 92.5mcg (77% Daily Value)
• Folate: 57mcg (14% Daily Value)
• Potassium: 288mg (6% Daily Value)

Important Disclosures

• Variety Disclaimer: Heirloom varieties may exhibit natural variation in head size and maturation timing. Harvest main head before yellowing begins — once florets open, quality declines rapidly. Results may vary based on growing conditions, climate, and gardening practices.
• Seed Storage: Store seeds in a cool, dry location away from direct sunlight. Properly stored broccoli seeds remain viable for 3–5 years.
• Planting Zones: Grown as a cool-season annual in all USDA zones. Best in spring and fall in Zones 3–11; in Zones 8–11, plant as a fall and winter crop for best head development. Broccoli does not perform well in sustained summer heat.

Grow something beautiful. Grow something delicious. Grow with David's Garden Seeds®.