Growing Sweet corn, also corn,maize

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

05 Feb 21, (Australia - sub-tropical climate)
Better to plant in different spot. Corn is a big user of fertiliser and water. When preparing the soil add compost/manures if possible, Soils always need some fibre replacement each year. Then mark out your rows about 50-60cm apart, Scratch a furrow in the soil and run some fertiliser in the furrow - I use Bunnings rooster booster. Have the soil wet before starting, after planting give another watering. Don't water again for 3-4 days. Too wet seeds will rot. When plants are 45cm high run some more fert down each side of the plants and hill the soil up around the stalk. Corn pollinates for 5 days and you pick it approx 21 days later. I just picked 28 cobs last week. S
22 Oct 20, Mason Wong (Australia - sub-tropical climate)
I am growing corn for the 1st time & I seem to be winning, except, I have noticed the soil around the bottom of the stems is falling away as they are growing bigger, and the roots are showing a little. Is this normal? I keep covering them up but worry I may damage the corn. It is strong and healthy and they were dug in deep 45cm when planted. I just want to know if this is normal & are they air roots?
23 Oct 20, (Australia - sub-tropical climate)
I hill the soil up around the plant when they are about 30-40cm high. This gives them soil for the roots to grow in. I also run a little fertiliser beside the plant before hilling up.
22 Oct 20, Liz (Australia - arid climate)
Sweetcorn does look as though the roots are showing as it grows taller. They help to support the plant and are quite normal.
03 Oct 20, Brian Halse (USA - Zone 10b climate)
How tall should the Sweet Corn be before planting the beans?
08 Oct 20, (USA - Zone 10b climate)
Probably 30cm or so.
01 Sep 20, MARIO (South Africa - Dry summer sub-tropical climate)
Hi, Would you know where I can buy some white maize seeds in Cape Town? Do think they will grow here without any problems? Many thanks, Mario
03 Sep 20, Anonymous (South Africa - Humid sub-tropical climate)
Try a seed selling website.
10 Aug 20, Jesus E Amaya (USA - Zone 10b climate)
Is the a particular variety of sweet corn I should plant in Zone 10b?
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.
Showing 11 - 20 of 370 comments

In Adelaide, around the inner suburbs, corn can be started as early as late june, if you put a frame around the seedlings and cover most of it with glad wrap, (put one inch holes around the bottom).

- drew

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