Soil
Any average, well drained soil.
Position
Full sun to partial afternoon shade.
Frost tolerant
Many varieties are cold hardy to -10F (- 33C) when well rooted in the garden.
Feeding
Work an organic fertilizer into the soil prior to setting out seedlings or sets.
Companions
Beet, Lettuce, Potatoes, Carrot, Tomato and Cabbage. Often planted with mound-forming herbs.
Spacing
Single Plants: 3″ (10cm) each way (minimum)
Rows: 3″ (10cm) with 3″ (10cm) row gap (minimum)
Sow and Plant
Start seeds indoors in late winter to early spring when growing cold-hardy bunching varieties. Or, plant large sets close together and harvest the plants when young.
Notes
Any immature onion can be eaten as a green onion, or scallion.
Harvesting
Pull individual plants as you need them in the kitchen. With perennial bunching varieties, lift clumps in spring or fall and replant some of the divisions.
Troubleshooting
Slugs often chew holes in onion leaves in wet weather.
