Start in early spring indoors / heated greenhouse 8-10 weeks before transplanting outdoors.
When transplanting, clip plants to three inches and plant 2 inches deep.
Can be sown directly when ground has warmed in mid-late spring, at 2-3 seeds per inch, however bulbs may struggle to mature in poor summers.
Thin to 5 inches apart when plants are 6 inches tall.
Harvest young for salads or when mature as tops are brown and dry.
Fertile, moist soil enriched with compost is best for onion production.
Onions are claimed to ward off many insect pests around lettuce, cabbage and carrots.