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

21 Apr 22, Anonymous (Australia - temperate climate): I believe they do cross pollinate.
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26 Mar 22, Heidi (Australia - temperate climate): I have some onion sets left over from last year and want to plant them. All the articles I have seen thus far talk about growing them from seed/seedlings. Ours is a temperate climate, so when is a good time to plant them?
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19 Apr 22, Graham (Australia - temperate climate): Sets . Another word for seedlings. If they are still fresh and viable they should be OK. In saying that, I am surprised that they are still OK from last year. (Gardenate : 'sets' are usually small onion bulbs with brown, papery skin)
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29 Mar 22, Anonymous (Australia - sub-tropical climate): Check the top of the onion page.
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21 Feb 22, Narelle (Australia - tropical climate): Is Mackay too hot to grow onions? What's the best variety for up here? Thanks
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22 Feb 22, (Australia - tropical climate): Any variety.
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22 Feb 22, Anonymous of Bundaberg (Australia - tropical climate): Go to onion, set the climate zone to tropical and it will show you in the calendar guide. They take a long time to grow and are generally cheapish in shops.
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30 Nov 21, marco (Australia - tropical climate): hi i live on the gold coast qld .i have planted onion .rossa lunga di firenze .in late october ,early november .they are there and havent done much .we have had lots of rain here and the onions have thickened up quite a bit .i have thrown more seeds in a tray and i will plant them to see how they grow out .i might be too early yet i will let u know how it pans out !!
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07 Dec 21, Anonymous (Australia - sub-tropical climate): You are sub-tropical. Click that in SET YOUR CLIMATE ZONE. Then go to onion. You basically plant onions in autumn early winter.
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22 Dec 21, marco (Australia - temperate climate): yes you are right my onions thickened up with all the rain .yet they stalled in growth again .new seed seeded yet they are thin as well .like u said wrong time of year to grow .i will keep them in the ground to see what happens .(my first year of growing onions)
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I have geown onions for sometime with very ittle success, why don't the bulbs swell?

- Anonymous

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Growing Onion

Allium cepa : Amaryllidaceae / the onion family

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