Direct seedoutdoors assoon as the chance of hard frost has passed or start indoors 4-6 weeksbefore planting out date. Sow seed .5 cm deep and keep moist until seedlingsemerge. Space plants 20-30 cm apart in rows spaced45 cmapart. Fertile, moist soil and cool weather produces the best broccoli. Spring, early summer and fall crops are the best quality. Harvest the main head and allow side shoots to develop for ongoing harvest. If flea beetles are a problem, cover young plants with row covers.