When to plant
Extremely versatile — can be planted in early spring through fall in most climates. They tolerate light frost and grow in cooler temperatures than most vegetables. Succession plant every 3 weeks for a continuous supply.
Soil & site
Green onions tolerate a wide range of soils but grow best in loose, fertile, well-drained soil. pH 6.0–7.0. Work in compost. They grow very well in containers — a deep window box is ideal.
Feeding
Light feeder. A balanced fertilizer at planting and a single nitrogen application at mid-season is usually sufficient. Consistent moisture is more important than heavy feeding.
Common problems
Onion thrips (silvery streaks on leaves — use row cover, neem oil). Neck rot in storage from excess humidity. Bolting in extreme heat — harvest promptly in summer.
When to harvest
Green onions are ready when the tops are 20–30 cm tall and pencil-thick. The white base should be about 1 cm in diameter. They can be harvested at almost any size depending on your preference.
How to harvest
Pull the entire plant from the ground, or use scissors to cut the tops leaving 2–3 cm of green above the white base — the plant will regrow. Alternatively, harvest a few outer leaves from each plant without pulling the whole thing.
Storage & use
Store bunched green onions in the refrigerator, standing upright in a glass of water (like flowers) or wrapped in a damp paper towel in a bag. Lasts 1–2 weeks. Sliced green onion tops freeze well for cooking use.
Useful for growing green onion
A few things that make this one easier — chosen for this plant, not a generic list.
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