Onion illustration 🧅

Onion Growing Guide

Allium family

Days to Harvest110 days
SunlightFull Sun
Frost ToleranceModerate
Spacing9/sqft (4" apart)
Germination7-14 days
HardinessHardy
Germ. Temp70°F
Start Indoors10 weeks before last frost

Companion Planting

Avoid Planting Near

BeansPeas

Growth Stages

  1. Seedling / Sprouting
  2. Leaf Growth / Bulbing
  3. Mature / Harvest Ready

Plan Your Onion Garden

Track Onion from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

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