Growing Onion

Allium cepa : Amaryllidaceae / the onion family

Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
	S
		P	P

(Best months for growing Onion in USA - Zone 5a regions)

S = Plant undercover in seed trays
P = Sow seed

Easy to grow. Grow in seed trays, and plant out in 4-6 weeks. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 46°F and 86°F. (Show °C/cm)
Space plants: 2 - 4 inches apart
Harvest in 25-34 weeks. Allow onions to dry before storing.
Compatible with (can grow beside): Lemon Balm, Borage, Carrots, Beets, Silverbeet, Lettuce, Amaranth
Avoid growing close to: Peas, Beans

Your comments and tips

15 Apr 23, Mike (Canada - Zone 3a Temperate Short Summer climate): Growing onions from seeds What kind should I grow? When? Can I start then before winter, or do I start the seeds in January indoors?
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26 Apr 23, Erin (Canada - Zone 5b Temperate Warm Summer climate): You need a long day onion, you can start seed ahead of time indoors, do not save seed packets, they're only good for a year.
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19 Apr 23, (Canada - Zone 3a Temperate Short Summer climate): Read the planting guide at the top of the page and plant the variety you want to eat.
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14 Apr 23, CJ (Canada - Zone 5b Temperate Warm Summer climate): CAN I GROW IN CONTAINERS AS I LIVE IN AN APARTMENT
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12 Apr 23, marco (Australia - sub-tropical climate): hi i live on the gold coast Queensland . i have planted my onion 2 weeks ago in the cloudy times .ok .then we hit harsh sun times .i had to cover and they are ok growing well .if u just leave them in the sun they fry .....my second batch i lost maybe half my crop ...
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05 Mar 23, Lori (Canada - zone 4a Temperate Warm Summer climate): What onions grow best in zone 4a?
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01 Mar 23, Susan (USA - Zone 6b climate): Can I direct sow intermediate onion seeds in fall in a raised garden bed covered with leaves and over winter them. Zone 6b
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29 Jan 23, Gladis (USA - Zone 10a climate): What variety grows best in zone 10a (Southern California)?
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07 Jan 24, Lisa (USA - Zone 10a climate): Any Short Day onions. Google "Short Day Onions". I also live in Southern California and just received my onions sets from Dixondale Farms.
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29 Jan 23, Ron Holt (USA - Zone 7b climate): I would like to grow onions (sets) in my garden this Feb. 23 to be harvested as mature onions in about 6 months. I would prefer sweet onions. Can you suggest a a particular type ? Do I need to buy heated onions? Thanks, Ron
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Growing Onion

Allium cepa : Amaryllidaceae / the onion family

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Ask a question or post a comment or advice about Onion

Gardenate

Keep your garden growing - see what to plant right now

Growing Onion

Allium cepa : Amaryllidaceae / the onion family

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