Crops Companions Guides Community

Loading...

Plan smarter. Grow more. Waste nothing.

Explore

Crops
Garden Planner
Guides
About
Support
Changelog

Community

Hub
Terms of Service
Privacy Policy
Data Sources

Connect

X (Twitter)Instagram

© 2026 ZemiGrow. All rights reserved.

Onion

Onion

Allium cepa

Local Insights

We need your Hardiness Zone to give specific advice.

Growing Timeline

General estimate

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Start Indoors

Transplant & Grow

Harvest

Now

Approximately 100 days from planting to harvest

About Onion

A vegetable that is the most widely cultivated species of the genus Allium.

Growing Details

Sun Requirements: Full Sun
Sowing Method: Direct plant sets or transplants in early spring.
Spread: 10 cm
Row Spacing: 20 cm
Height: 40 cm
Days to Harvest: 100 days
Square Foot Gardening: 9 per sq. ft.

Related Guides

No guides created for this crop yet.

Onion — How to Grow | ZemiGrow