How long does Waltham 29 broccoli take to mature?

Waltham 29 matures in 65 to 75 days from transplanting. Seeds germinate in 5 to 10 days and seedlings are ready to transplant in 4 to 6 weeks.

What size heads does Waltham 29 produce?

Waltham 29 produces main heads 4 to 8 inches in diameter. After harvesting the main head, the plant produces numerous side shoots with smaller heads for extended harvests.

Is Waltham 29 broccoli cold hardy?

Yes, Waltham 29 offers exceptional cold tolerance and can withstand light frosts. The variety was specifically developed for reliability in variable weather conditions and cool climates.

Can I grow Waltham 29 in hot weather?

No, Waltham 29 requires cool weather between 60 and 70 degrees Fahrenheit to develop quality heads. Plant for spring or fall harvest and avoid hot summer temperatures which cause poor head formation and bolting.

What size heads does Waltham 29 produce?

Waltham 29 produces main heads 4 to 8 inches in diameter. After harvesting the main head, the plant produces numerous side shoots with smaller heads for extended harvests.

Waltham 29 Broccoli Seeds / Brassica oleracea var. italica 'Waltham 29'

Waltham 29 Broccoli Seeds / Brassica oleracea var. italica ‘Waltham 29’

Grow reliable, cold-hardy broccoli with Waltham 29, a proven heirloom variety developed for consistent harvests. This classic cultivar produces large blue-green heads followed by abundant side shoots for extended production.

Perfect for home gardeners seeking dependable broccoli in spring and fall gardens.

25 in stock

Description

Waltham 29 broccoli delivers exceptional cold tolerance and reliability in variable weather conditions. This variety produces substantial 4 to 8 inch main heads with tight, uniform buds and excellent flavor.

After harvesting the main head, Waltham 29 continues producing generous side shoots for weeks of additional harvests from a single planting.

Developed specifically for home gardeners and market growers, Waltham 29 adapts well to various growing conditions and performs consistently across different climates. The variety matures at a moderate pace, providing flexibility in harvest timing.

Enjoy nutritious homegrown broccoli packed with vitamin C, vitamin K, and fiber for steaming, roasting, stir-fries, and fresh eating.

Waltham 29 Broccoli Plant Specifications

Lifespan: Annual
Seasons to sow: Spring and fall, cool-season crop
Light requirement: Full sun, 6-8 hours daily
Space requirements: 18-24 inches between plants
Mature size: 18-24 inches tall, 18-24 inches wide
Depth to sow: 1/2 inch
Days to germination: 5-10 days
Days to maturity: 65-75 days from transplant

Waltham 29 Broccoli Growing Information

Start Waltham 29 broccoli seeds indoors 6 to 8 weeks before the last spring frost for spring crops or in mid to late summer for fall harvest. Plant seeds half an inch deep in rich, well-draining soil with pH 6.0 to 7.5.

Space transplants 18 to 24 inches apart in full sun. Broccoli requires consistently moist soil with 1 to 1.5 inches of water weekly and regular feeding as a heavy feeder. Time plantings so heads mature during cool weather between 60 and 70 degrees Fahrenheit for best results.

For complete growing and care instructions, see our Broccoli Growing Guide.

Ready to Grow Waltham 29 Broccoli?

Add Waltham 29 broccoli to your spring or fall garden and enjoy reliable harvests of nutritious homegrown heads. This dependable heirloom variety delivers quality results with straightforward care and extended production from side shoots. Order your seeds today and experience the satisfaction of growing your own broccoli.

Terms of Sale

You will receive a minimum of 500mg of seed, approximately 125 seeds, as well as instructions for planting and care.

Shipping Cost is Flat Rate and covers all seeds purchased in a single transaction from Southern Garden, with no additional charges no matter how many you order.