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

16 Sep 19, Anon (Australia - sub-tropical climate): What do you mean by sets?. I don't grow onions but I would think most people grow from seeds or seedlings.
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27 Aug 19, Jessica (Australia - temperate climate): Hi, can I still plant onion in September in Melbourne? thank you
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27 Aug 19, Liz (New Zealand - sub-tropical climate): Check here www.gardenate.com/plant/Onion?zone=2
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10 Aug 19, Sam (South Africa - Summer rainfall climate): I just planted onions that got spoiled and started to grow but now each bulb has grown into a set of seedlings. Do I pull them out and plant them separately or leave them grow as they are? Kind Regards Sam
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13 Nov 19, anon (South Africa - Summer rainfall climate): Pull apart.
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13 Jul 20, Elizabeth (South Africa - Summer rainfall climate): Leave them to grow. Pulling apart will break the roots. A group of onions bulbs will develop and you can harvest them together or one at a time by twisting one gently.
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01 Aug 19, Mwenya Selebi (South Africa - Humid sub-tropical climate): Where in South Africa Gauteng can l buy red onion seedlings. l have a two hector onion field. l did direct planting of the onion and only one hector has come out well. l need seedlings that are ready for transplanting to supplement, csn you help me please. Where can l.buy seedlings in Gauteng.
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28 Jul 19, Elizah Thadius (Australia - tropical climate): Do we have an insecticide/fungicide for bulb onion? Can anyone tell me if there is any manufactured fertilizer for bulb onion?
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29 Jul 19, (Australia - tropical climate): Look up the internet to see if there is an insecticide/fungicide. The same as my comment for sweet potato. - learn what N P and K do for plants. Then apply that to what you are growing. They don't make different fertilisers for every kind of veggie.
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16 Jul 19, Donna (Australia - temperate climate): I'm confused I Googled what fertilizer is required for onions and 1 search says onions don't want a lot of nitrogen and another search says onions are nitrogen hungry. ...so which is it?
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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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Ask a question or post a comment or advice about Onion

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