Onion

Heirloom Onions curing outside.

Browse our onion seeds here! Grow red onions, yellow onions, white onions, and even green onions in your home garden.

What Onion to Pick?

Short Day Onions grow in latitudes 25-35.

Short day onions are planted in the southern states, where they mature in 110 days. (They can also be planted further north; harvested onions will just be smaller.) These need 10-12 hours of sunlight/day to bulb.

Short day onions
Intermediate Day Onions grow at latitudes 32-42.

Intermediate day onions are planted in the middle of the US, where they mature in 110 days. They need 12-14 hours of sunlight/day to bulb. These are typically the sweetest onions.

Intermediate day onions
Long Day Onions grow at latitudes 37-47.

Long day onions are planted in the more northern states. They need 14-16 hours of sunlight/day to bulb. These are the best producers of long-term storage onions.

Long day onions

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