Broccoli | Waltham 29

Grow firm, tender, and nutrient-dense heads of Waltham 29 broccoli in your home garden. Broccoli is a quintessential cool-season vegetable favorite, prized for its vigorous growth habit and delicious, tight blue-green heads accompanied by tender side shoots that are wonderful in fresh side dishes, stir-fries, and abundant harvests.

These reliable plants produce heavy yields of vitamin-rich heads on sturdy stalks throughout the growing season, making them a productive and rewarding addition to any vegetable patch. Start seeds indoors in early spring for transplanting out, or direct sow for Canada's cool northern climate, as Waltham 29 thrives in cooler temperatures and develops exceptional flavor.

Why Grow Waltham 29 Broccoli?

• Firm, tender, and nutrient-dense central blue-green heads with delicious side shoots
• Abundant and reliable cool-weather yields bred specifically for cooler regions
• Exceptional source of vitamins C and K, fiber, and antioxidants
• Open-pollinated heirloom variety
• Approximately 75–85 days to maturity
• Grows best in full sun
• Approximately 60–70 seeds per packet

How to Grow Waltham 29 Broccoli from Seed

Start broccoli seeds indoors 4–6 weeks before your last spring frost. Transplant seedlings outdoors in early spring as soon as the soil can be worked, as young plants tolerate light frosts well.

Choose a location with full sun and rich, well-ventilated soil amended with plenty of organic compost. Space plants approximately 45–60 cm (18–24 inches) apart to allow for proper head development and air circulation.

Water consistently and deeply, keeping the soil evenly moist during active growth. Broccoli is a heavy feeder and benefits from steady moisture to prevent premature buttoning or bitter heads.

Harvest the main central head when it is firm and tight before the yellow flowers open. After harvesting the main head, leave the plant in place to produce multiple smaller side shoots for extended picking.

Growing Broccoli in Canada

Broccoli is exceptionally well-suited to Canadian climates, thriving in the cool spring and autumn shoulder seasons. Waltham 29 in particular is famous for its stellar performance in cooler northern gardens, withstanding autumn frosts wonderfully.

Use row covers to protect young plants from cabbage root maggots and other early-season pests common in northern gardens.

For detailed instructions covering seed starting, spacing, watering, fertilizing, harvesting, and pest management, read our How To Grow Broccoli: A Complete Guide

Waltham 29 Broccoli Growing Information

Feature	Detail
Botanical Name	Brassica oleracea var. italica 'Waltham 29'
Common Name	Broccoli (Waltham 29)
Plant Type	Annual cool-season vegetable
Sun Requirements	Full sun
Days to Maturity	Approximately 75–85 days
Seed Count	Approximately 60–70 seeds
Pollination Type	Open-pollinated heirloom
Best Uses	Fresh heads, side shoots, steaming, and freezing

Grow Your Own Waltham 29 Broccoli

There is nothing quite like harvesting fresh, crisp nutrient-dense broccoli heads straight from your own garden bed. With its exceptional cool-weather hardiness and heavy reliable yields, Waltham 29 broccoli is a rewarding and essential addition to your Canadian vegetable patch.

Start your broccoli from seed this season and enjoy watching them grow into a bountiful harvest of delicious, healthy greens.