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Professional Grower | Home Gardener


Broccoli Seeds

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The increased popularity of broccoli in the home garden and at farmers’ markets is simple to explain. It's nutritious, delicious raw or cooked, freezes well, and is relatively easy to grow. Originating in the Mediterranean countries of Italy and France, broccoli is a member of the cabbage (or cole) family. Broccoli is probably the single most recognized vegetable for nutritional value. It commands huge commercial production acreage in this country and Mexico, and will remain a staple of our diet for a long time to come.

Broccoli will produce marketable heads in many soil types as long as the soil is well-prepared, properly fertilized and has a pH of 6.0-6.8. Broccoli can be direct-seeded for fall crops, but extra care must be taken in soil preparation, watering, weed control and early flea beetle and root maggot control. It is more commonly handled as a transplant, which can eliminate several weeks in the field. Sow seed in a 70°F greenhouse about 2 weeks before the avg. last frost date and grow for about 3-4 weeks for spring plantings and summer harvests. Harden off at 60° F for a few days before transplanting. Alternatively, sow seed in a bed protected from damaging winds, and transplant the bare root seedlings to the field after 6-8 weeks. Premature heading (buttoning) may occur if transplants are tough, old, or grown at temperatures below 55° F.

Growing Tips: Since quality is best when heads mature in cool weather, plan for a fall harvest. Seeds can be direct seeded, but are more commonly started indoors and transplanted to the garden in early summer. Make sure that seedlings get plenty of light, or transplants will look spindly. Avoid using tough, old transplants grown below 55 deg. F. to minimize premature heading. Harvest the large central heads when the deep green and tiny flower buds are tight. Cut 5" - 10" down stalk to encourage growth of side shoots.

Average Seed Count: 75 per packet; 7500/Oz.; 115,000/Lb.

Untreated and Organic varieties are identified with or .
Further information on seed type is provided on each variety page.

Photo of Broccoli Diplomat F1, Broccoli
Broccoli Diplomat F1

Broccoli Emerald Crown F1
Broccoli Emerald Crown F1

Broccoli Green Magic F1
Broccoli Green Magic F1

Photo of Broccoli Gypsy F1, Broccoli
Broccoli Gypsy F1

Photo of Gypsy F1 Broccoli Grown Using Untreated Seeds, Broccoli
Broccoli Gypsy F1 Untreated

Broccoli Imperial F1
Broccoli Imperial F1

Photo of Broccoli Marathon F1, Broccoli
Broccoli Marathon F1


Harris Seeds began operation in 1879 from the efforts of Joseph Harris, who was successful in selecting only the highest quality vegetables and grains. The company gained popularity because of his basic business philosophy: "Offer customers a quality product at a fair price and they will return." READ MORE



Harris Seeds of Rochester New York
355 Paul Rd.
P.O. Box 24966
Rochester, NY 14624

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