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Growing Sweet corn, also maize

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

(Best months for growing Sweet corn in Australia - tropical regions)

P = Plant in the garden.

  • 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 in same bed): All beans, cucumber, melons, peas, pumpkin, squash, amaranth
  • Avoid growing in same bed: Celery.
  • A seedling
    A seedling
  • A young corn plant
    A young corn plant
  • Feathery cobs on side of stem. Male flowers at top.
    Feathery cobs on side of stem. Male flowers at top.

Plant in 4 by 4 blocks to encourage germination Pick when the silky threads on the cobs turn brown or black. Part the top of the leaves and test for ripeness by pressing a grain with your fingernail. If it is milky, it is ready.

Early varieties ripen quickly and are sweeter when just picked.

Avoid planting coloured maize ( for drying) near sweetcorn as they will cross-pollinate and spoil the cobs on both.

Culinary hints - cooking and eating Sweet corn

Pick and cook within an hour. Remove the silks and outer leaves.
Best flavour if microwave about 4 minutes per cob.
Can be barbequed wrapped in foil
Cook large amounts in a stock pot until test soft.
Sprinkle with black pepper and dip in butter.

Your comments and tips

20 May 16, Jennifer (Australia - tropical climate)
Once I've picked the cobs is the rest of the plant a write off... ie. Dig it out?
25 May 16, Bob Dobbs (Australia - sub-tropical climate)
23 May 16, David (Australia - arid climate)
No why not use them as a support to grow some climber like sweet peas, beans, once these have finished then dig them out.
07 May 16, Rosemary (Australia - temperate climate)
Hi Phoebe. If you plant corn outside now it might germinate if you are lucky, but it won't grow much because it is too cold. Best time to plant it is in spring or early summer. You might like to try peas or broad beans for this time of the year. Both are easy to germinate and grow. If you are looking for a grassy type of plant to grow, try wheat or barley. Good luck.
02 May 16, Phoebe (Australia - temperate climate)
Hi, I live in adelaide and I am planning to plant corn as part of my school project however I was wondering whether it could be planted in May eventhough its not a best season for it. Will it still germinate and grow?
25 Mar 16, Greg (the buck) (Australia - sub-tropical climate)
Grow your corn in 2mx2m squares. Plant squash & beans with them, it's an old method called the 3 sisters. Each plant gives good energy to the other. Try it. You will be blown away by the quality of your veg.
22 Mar 16, Victoria (Australia - temperate climate)
you can use the stalks to grow your peas up.
20 Mar 16, Eryn (Australia - sub-tropical climate)
How long can a one sweet corn plant produce for? We have just harvest corn from the plants, are they now useless and need to be replaced?
16 Apr 16, Bob Dobbs (Australia - sub-tropical climate)
Yes, they need to be replaced as they will not crop again. They will die off. All the best, Bob
15 Jan 16, Elizabeth (Australia - temperate climate)
why can't you plant corn and celery together thanks
Showing 1 - 10 of 187 comments

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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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