Growing Sweet corn, also corn,maize

Zea mays, var. rugosa : Poaceae / the grass family

Jan F M A M J J A S O N Dec
        P P            

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

  • P = Sow seed
  • Sow in garden. Sow seed at a depth approximately three times the diameter of the seed. Best planted at soil temperatures between 16°C and 35°C. (Show °F/in)
  • Space plants: 20 - 30 cm apart
  • Harvest in 11-14 weeks.
  • Compatible with (can grow beside): All beans, cucumber, melons, peas, pumpkin, squash, amaranth
  • Avoid growing close to: Celery.

Your comments and tips

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06 Jul 22, C. B. (USA - Zone 7b climate)
I got great information on using fabric grow bag planters from YouTube. Her channel name: Growfully with Jenna / Title of video: Can I Grow Sweet Corn in a Container? Absolutely! / Date published: Sep 1, 2020 / Length of video: 5:39 She suggests using 20 gallon grow bag planters. No smaller. She suggests making 6 holes in soil with 2 seeds in each hole and thin if need be. She says she does two seeds because every now and then, you'll get a seed that won't germinate. I hope this helps. Please check out her video. :) P.S. She does discuss the type of soil to use because corn is a very heavy feeder. She says use 50% mushroom compost and 50% garden soil.
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29 Aug 21, anon (USA - Zone 7b climate)
Try and buy some soil or find free or cheap soil and improve your soil with manures and compost.
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12 Feb 21, Pamela Newman (USA - Zone 9b climate)
Names of sweet corn grown in Goleta CA. Zone 9b, please. Thank you!!!
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15 Feb 21, Anonymous (USA - Zone 5a climate)
You can grow most corns anywhere, just get the planting time right.
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03 Oct 20, Brian Halse (USA - Zone 10b climate)
How tall should the Sweet Corn be before planting the beans?
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08 Oct 20, (USA - Zone 10b climate)
Probably 30cm or so.
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10 Aug 20, Jesus E Amaya (USA - Zone 10b climate)
Is the a particular variety of sweet corn I should plant in Zone 10b?
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11 Aug 20, Anonymous (USA - Zone 9b climate)
Not really, comes down to what kind of sweet corn you like. Or ask around local people who grow sweet corn in your area. I grow a bi-color variety in warm climates in Australia.
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17 Jul 20, Sarah (USA - Zone 8a climate)
Can I plant corn in mid July in zone.8a?
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07 Aug 20, Liz (USA - Zone 8a climate)
If you are zone 8a, click on Vegetables and Herbs tab, go to sweet corn and look it up. Set your zone at the top of the page. Check planting times and follow the suggested planting methods.
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Showing 21 - 30 of 33 comments
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Thanks Chris, they are in blocks, but what I may be doing wrong is that I am dusting the silk for grubs as soon as it pops out & maybe that is stopping the pollination.

- Ian

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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. Gardenate is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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