Harman US
Broccoli variety

Waltham 29 Broccoli

A classic open-pollinated broccoli with blue-green heads and dependable performance in many regions. It is valued for cold tolerance and for producing side shoots after the main head is cut.

Broccoli
Type
heirloom, central head
Days to maturity
74-85
Best for
fall crops, succession planting, gardeners saving seed

About Waltham 29

Waltham 29 is a classic open-pollinated broccoli known for medium to large blue-green heads and useful side-shoot production after the main head is cut. It is a dependable cool-season garden standard.

Growing Waltham 29 Broccoli

Start it for spring or fall, but it usually performs best in fall conditions with steady cool weather. Cut the central head while buds are tight, then keep feeding and watering for side shoots.

Full growing guide

For planting dates, care, and harvest that apply to all broccoli, see the complete guide.

How to grow Broccoli

Other broccoli varieties

Variety characteristics are general guidance for US home gardens; performance varies by climate, soil, and season. Seed and plant availability differs by supplier. Page updated Aug 4, 2026.