Quick facts
Season: Cool to warm transition
Light: Full sun
Soil: Loose fertile soil
Water: Moderate
When to plant: Sets/transplants in early spring
Harvest: When tops fall over
Care note: Choose day-length type for region.
Vegetable growing guide
Onion
Season: Cool to warm transition
What to do next
- Check the light level before choosing the final location.
- Use the soil type listed for this plant or crop.
- Water by soil moisture rather than a fixed calendar.
- Watch new growth for signs that the plant is adapting.
- Adjust care seasonally as light, heat, and humidity change.
Watch-outs
Avoid making multiple big changes at once. Move, water, feed, and prune gradually so you can see what helped.
Related
FAQ
How do I use this vegetable growing guide?
Start with the light, soil, water, symptom, or purpose notes on this page, then make one careful change at a time.
What is the biggest mistake with Onion?
Avoid making multiple big changes at once. Move, water, feed, and prune gradually so you can see what helped.
When should I get more help?
Get local help if the plant is valuable, symptoms are spreading quickly, or outdoor disease and pest problems may affect nearby plants.