Non-Bolting Red

Onion

90d to harvest

A vivid, ruby-red bulb with a clean, non-bolting habit—Non-Bolting Red stays true through the cool season, building firm layers that feel substantial in the hand. Expect a balanced, sweet-on-the-surface flavor that deepens beautifully when roasted, while the crisp texture shines in fresh salads and bright relishes. Grow it for reliable harvests around 90 days, when the skins gleam and the necks settle for easy storage-ready bulbs.

Crop Dates

Milestone	Date
Start Indoors	Feb 27th
Last Frost	Apr 10th
Transplant / Sow Outdoors	Apr 3rd
Harvest Begins	Jul 2nd
Harvest Ends	Oct 28th

Crop Details

Trait	Value
Days to Maturity	90
Sun Requirements	Full Sun
Growth Habit	Bulbing
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	45
Min Night Temp (°F)	28
Harden Off (days)	7

Recommended Companions

Ingot Carrot

Green Gem Lettuce

Boro Beet

Flashy Butter Oak Lettuce

Jaune Obtuse Du Doubs Carrot

Cylindrical Beet Beet

Frequently Asked Questions

How often should I water Allium cepa during the main growing phase?

During active bulbing, keep soil consistently evenly moist but not waterlogged—about 1 inch (2.5 cm) of water per week, adjusted for rainfall and heat. Let the top 1 inch of soil dry slightly between waterings, because soggy soil can trigger mildew and bulb rots. If leaves start yellowing and bulbs are well-formed, reduce watering gradually to help skins dry before harvest.

How can I tell when Allium cepa is ready to harvest?

Harvest when about half the tops have fallen over and the necks are soft-dry, with bulb skins papery and colored. Stop watering roughly 1–2 weeks before harvest to firm skins and reduce rot risk in storage. Lift carefully with a fork, cure bulbs in a warm, airy, shaded spot for 2–3 weeks, and store only fully dry onions.