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 8°C and 30°C. (Show °F/in)
Space plants: 5 - 10 cm 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

08 Apr 21, Anon (USA - Zone 4b climate): Put the question into google and it will explain how to do it.
Reply or Post a new comment
28 Feb 21, Barbara Esparza (USA - Zone 9b climate): Are there any onion sets that I can plant in Texas zone 9b that are more heat resistant?
Reply or Post a new comment
02 Mar 21, Anonymous (Australia - sub-tropical climate): Plants generally have a temperature range that they grow in. That is why most crops are seasonal in a district. Try planting out of that range and you could fail.
Reply or Post a new comment
16 Feb 21, Judith c Greenleaf (USA - Zone 9b climate): Can I plant onion sets in February or march? what sweet onion varieties do you suggest for No. Ca. marine zone 9B? Thank you.
Reply or Post a new comment
17 Feb 21, Anonymous (USA - Zone 9b climate): Consult the planting guide calendar and the footnote at the bottom of the page. If it says plant April and you plant Feb, the seeds/sets probably won't germinate/survive . There are reasons why it says to wait until April but take local conditions into considerations.
Reply or Post a new comment
12 Aug 21, Carol Rose (USA - Zone 9b climate): I found Dixondale Farms to be a great help. I ordered my onion slips form them. I had never ordered onion slips before so I was a little nervous about the process. I wasn't able to plant them when they arrived but I cared for them as per instructions and only lost a few before I could get them into my newly made raised beds. I planted sometime in early June I think and they are about 3 weeks or so form being ready. I live on the Central Coast of California and these onions look great. As a pretty new organic gardener I love to share my successes. Ck out Hollis and Nancy's homestead on YouTube. It is so helpful!!
Reply or Post a new comment
03 Feb 21, Sky Kell (USA - Zone 7b climate): Perennial onion that multiplies for 7b zone
Reply or Post a new comment
01 Apr 20, Kaz (USA - Zone 11b climate): Aloha What onions & tomatoes grow well in zone 11 Hawaii Ohau north shore
Reply or Post a new comment
25 Nov 19, William Rowe (USA - Zone 9b climate): What variety of onion do you suggest for my region. 9b Ocala,Fl
Reply or Post a new comment
02 May 18, TJ Russell-Zapata (USA - Zone 7a climate): I am moving to zone 7a from Texas. Do I still over winter garlic and onions?
Reply or Post a new comment

Showing 31 - 40 of 44 comments

See comments for all plants

Replying to:

Can I direct sow intermediate onion seeds in fall in a raised garden bed covered with leaves and over winter them. Zone 6b

- Susan

Your name

Where are you?

Email address

Please provide your email address if you are hoping for a reply

Your reply

All comments are reviewed before displaying on the site, so your posting will not appear immediately

Gardenate

Keep your garden growing - see what to plant right now

Growing Onion

Allium cepa : Amaryllidaceae / the onion family

Your comments and tips

Gardenate

Keep your garden growing - see what to plant right now

Growing Onion

Allium cepa : Amaryllidaceae / the onion family

Your comments and tips

Become A Supporter!

Planting Reminders