Thinnings may be used as green onions. Planting is done from late March to early April as bulbs form better in cool temperatures. Green onions can be grown from seed or small transplants. Onion rows are spaced 16 inches apart. Work the fertilizer into a 1 foot wide band where planting will be done.
Onions are low plants with sparse root systems so keep weeds under control.
Harvest when the tops fall over and dry up. Spread out the harvested bulbs in a dry area to cure for several days. Use injured bulbs, don't try to store them. The tops of slow maturing plants may be broken over but don't bruise the neck of the bulb in the process. Hot onions are due to insufficient watering.