Romanesco cauliflowers are a fantastic variety from Italy, producing stunning yellow green heads of spiral rosettes with an excellent flavor visually that resembles a pine cone. Many Romanesco cauliflowers are spring maturing but this rare one that comes ready in the autumn (Oct-Nov), thus avoiding the need to overwinter it.
Start indoors in a warm, well-lighted area from early March through June for the earliest of crops. Sow seeds ¼" deep in good compost. Keep evenly moist. Seedlings emerge in 5-8 days at 70º F. They do best covered lightly with soil. Alternatively, sow directly outside from early April.
Transplant seedlings by at least Midsummer. They grow best at 55º to 65º F. Do not let seedling become more than 5 weeks old because older seedlings do not mature well transplanted.
Set plants 18" apart in rows 24" apart. Transplant seedlings in late June for Oct - Nov head harvest.
Water deeply once a week in dry weather. Cultivate or mulch to control weeds. High fertility and abundant supply of water throughout the growing season are important