For summer plantings/early fall harvest our recommended sub is Gypsy. We do not include Gypsy in our broccoli comparison chart for this slot even though, in our experience, Gypsy works well here - just not quite as well as Bay Meadows and Diplomat.
Most widely adapted. Beautiful, blue-green, well-domed heads. This widely adapted variety has performed extremely well under stressful conditions from both spring, and summer plantings. Avg. 90,000 seeds/lb. Packet: 100 seeds.
CULTURE: See "Cabbage", Broccoli prefers a well-drained, fertile soil high in organic matter, a pH of 6.0-7.5 with a consistent supply of moisture throughout the growing season. Irrigate regularly for best results. While more heat-tolerant varieties are now on the market, Broccoli does not generally do well in hot weather. The best success is with spring and fall crops. PLANTING, DISEASES, INSECT PESTS, AND NOTES: See "Cabbage". TYPICAL PLANT POPULATION: 43,560 plants/acre (1 sq. ft./plant) spaced 8" apart in rows 18" apart. HARVEST: Before flower buds open, cut center head. Hydrocool or ice as soon as possible. Harvest secondary side shoots regularly to encourage continued production. STORAGE: Store at 32°F (0°C), 95-98% relative humidity, with good air circulation for 10-14 days. DAYS TO MATURITY: From date of transplanting; add about 20 days if direct seeding. AVG. PRECISION SEEDING RATE: 583'/1,000 seeds, 50,000 seeds (avg. 8.3 oz.)/acre spaced 7" apart in rows 18" apart. TRANSPLANTS: Avg. 850 plants/1,000 seeds. SIZED SEEDS: Standard except where noted. SEED SPECS: SEEDS/LB.: 70,000-150,000 (Avg. 96,000). PACKET: 100 seeds sows 50'.