Waltham 29
Brassica oleracea italica
HOW TO GROW BROCCOLI
Start indoors 4-6 weeks before last frost and plant out 2 weeks before frost; or direct seed 2 weeks before last frost. For fall harvest, transplant 8–12 weeks before first frost. In a hoophouse, you can plant 2-3 later. We seed in March under cover, first of May in the open. We seed from July 1 to August 15 for fall harvest in zone 8b. Broccoli grows best in the 60s˚F so plant for best temperatures in your area. For seed in Zone 7b or warmer, direct sow in early January under Row cover. Soil pH 6.0-7.5. Hardiness zones 4-10. Biennial.
Days from maturity calculated from the date of seeding. Average 6,000-9,000 seeds per ounce. Average 58M seeds per acre. Federal germination standard: 75%. Usual seed life: 5 years. Isolation distance for seed saving: 1 mile.
Planting Depth 1/4-1/2”
Soil Temp. Germ. 65-75˚F
Days to Germ. 5-10
Plant Spacing 18-24”
Row Spacing 24-36”
Days To Maturity 65-90
Full Sun, Moist Well Drained
Days from maturity calculated from the date of seeding. Average 6,000-9,000 seeds per ounce. Average 58M seeds per acre. Federal germination standard: 75%. Usual seed life: 5 years. Isolation distance for seed saving: 1 mile.
Planting Depth 1/4-1/2”
Soil Temp. Germ. 65-75˚F
Days to Germ. 5-10
Plant Spacing 18-24”
Row Spacing 24-36”
Days To Maturity 65-90
Full Sun, Moist Well Drained
Waltham 29 Seed Count
1 Ounce ≈ 9,450 seeds
.25 Pound ≈ 37,800 seeds
1 Pound ≈ 151m seeds
- 250 Seeds$3.50
- 1 Ounce$7.50
- 1/4 Pound$16.50
- 1 Pound$48.00
Dark blue-green plants average 24” tall and produce medium-green heads 3” in diameter on smaller plants. Produces abundant side shoots that can be harvested 1 to 3 weeks after the main head has been cut. Non-uniform in maturity resulting in a long harvest period ideal for home gardeners. Good spring or fall planting...
Dark blue-green plants average 24” tall and produce medium-green heads 3” in diameter on smaller plants. Produces abundant side shoots that can be harvested 1 to 3 weeks after the main head has been cut. Non-uniform in maturity resulting in a long harvest period ideal for home gardeners. Good spring or fall planting, cold tolerance. Tags: Color: Green, Shape: Variable, Specialty: Cool Climate, Heritage: Heirloom, Season: Spring Fall.
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