When watering broccoli, do not get water on the developing heads. Watering: Broccoli likes cool soil, so adding grass clippings around the plants helps. Sow 3–4 seeds 12″ apart, ½” deep, rows 18–36″ apart, thinning to one plant in each group. Transplants can be set out from September to February in these regions. Successful broccoli crops can be grown where winters are rarely below 32☏. To ensure mature heads, seed the crop early in areas where heavy freezes occur early in the Fall. as above in May and transplant to the garden in June–July. For a Fall crop, start seedlings indoors 3-4 weeks before transplanting. Broccoli prefers cooler growing temperatures, between 55–75☏ but will produce good crops under warmer, summer conditions. Transplant outdoors 10–18″ apart in rows 18–36″ apart. If possible keep soil temperature at 80☏ until germination, then reduce air temperature to about 60☏. Seedlings should be ready to transplant in 3–4 weeks.
Planting: Use early and midseason broccoli varieties in the Spring. The best success is with spring and fall crops. Broccoli does not generally do well in hot weather. It can be grown twice a year, in the late spring and the fall.īefore Planting: Broccoli prefers a well-drained, fertile soil high in organic matter, and a pH of 6.0–7.5 with a consistent supply of moisture throughout the growing season.
Broccoli is part of the Cole Crop family, which also includes cabbage, kohlrabi, kale and more. 104,100) PACKET: 100 seeds, sows 50', unless otherwise noted.Broccoli is a hardy, cool-season vegetable bringing colorful green nutrients to the table. Broccoli seeds are sized, except when noted in the product description. This consistency allows for more accurate spacing with mechanical seeders and more even germination. SIZED SEEDS: "Sized" seeds have been sorted so they are roughly the same size. DAYS TO MATURITY: Sprouting broccoli: From transplant date to central head harvest, side shoots will follow. Harvest regularly to encourage continued production.
Stems 4–8" in length can be bunched for sale or sold loose. HARVEST: Before flower buds open, cut stems of central head and side shoots. See individual varieties for pinching recommendations. PINCHING: For some varieties, side-shoot production can be increased by pinching the initial head as soon as it forms. See individual varieties for duration of vernalization period. COLD TREATMENT (VERNALIZATION): Late-sprouting varieties require exposure to temperatures at or below 50☏ (10☌) to induce budding. DIRECT SEEDING: Sow 3 seeds per foot, ½" deep, rows 18–36" apart, thinning to one plant in each group. Transplant outdoors 6–12" apart for spring raab and 12–24" apart for sprouting broccoli in rows 18–36" apart. If possible, keep soil temperature 75–80☏ (24–27☌) until germination, then reduce air temperature to about 60☏ (16☌). in 20-row flats, or in outdoor beds ¼" deep. TRANSPLANTING: Sow 2 seeds per cell in 72-cell plug flats, 3–4 seeds/in. Prevent disease with crop rotation and good sanitation. Cabbage worms can be controlled with Bacillus thuringiensis. Flea beetles can also be controlled with insecticides such as azadirachtin or pyrethrin. DISEASES AND INSECT PESTS: Prevent flea beetle damage by applying floating row cover at planting. Prefers a consistent supply of moisture throughout the growing season. CULTURE: Prefers a well-drained, fertile soil high in organic matter with a pH of 6.0–7.5. SCIENTIFIC NAME: Brassica oleracea (unless otherwise indicated).
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