Keep your garden growing - see what to plant right now

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 beside): All beans, cucumber, melons, peas, pumpkin, squash, amaranth
  • Avoid growing close to: 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

04 May 17, Tony Morales (Australia - temperate climate)
I usually plant yellow (mild) chillies, tomatoes, capsicums, lettuce and herbs which possums do not seem to touch but have blocked up any possible rabbit entry (they a few around Forestville) so I really have no problems.I Still would love to find out when and how to plant my purple corn.
06 May 17, Giovanni (Australia - sub-tropical climate)
Late Spring is a good time to sow maize/corn in cooler areas. The soil temperature needs to be above 15 degrees before Summer crops will really take off. A soil thermometer is a good investment, they cost around $20.00.
03 May 17, (Australia - temperate climate)
I have s quite a few PURPLE CORN which I grew a few years ago but over the last 2 years I have been unable to grow them again. Is there any information available about the best time an method to grow them in Sydney?. Thank you
04 May 17, Sean (Australia - sub-tropical climate)
Corn and maize do well if they have plenty of compost or manure and a good water supply. They can normally be planted as the weather warms up in spring. probably mid-September onwards in Sydney. You could also plant climbing beans to grow up the corn stalks once the corn has reached about waist high.
03 May 17, Rae (Australia - sub-tropical climate)
Best time to plant corn in Geraldton WA
04 May 17, Ken (Australia - sub-tropical climate)
Sow seed from September till the end of the year.
03 Mar 17, Max (Australia - temperate climate)
We live in suburbs in Chatswood Sydney but as soon as the cobs form a rabbit turns up and eats all the corn (also the chillies).
06 Mar 17, John (Australia - temperate climate)
The rabbit stew sounds like a great idea!
05 Mar 17, Simon (Australia - sub-tropical climate)
Max, Best trap the rabbit and enjoy a rabbit and vege stew.
04 Mar 17, John (Australia - temperate climate)
Rabbits, possums, etc can be a real menace with our vegetables. Multicrop have a product call 'Scat' which is supposed to provide protection for up to 10 weeks. I haven't used it but have used other products from the same company and found them to be safe and effective. It is available at Bunnings but should be available from other hardware stores and garden centres. the DEPI in Victoria, Dept Env. Land and Water have a number of solutions to the problem. Look up - www.depi.vic.gov.au and search for possum repellants. Their recipe using Quassia chips has been around for many years. Trust this helps.
Showing 1 - 10 of 234 comments

Post a question, comment or tip about Sweet corn

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


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

Gardenate App

Buy the app for iPhone/iPod, iPad or Android and support Gardenate

Planting reminders

Join 30,000+ gardeners who rely on Gardenate. Subscribe to our free planting reminders email newsletter


Home | Vegetables and herbs to plant | Climate zones | About Gardenate | Contact us | Privacy Policy

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.
We cannot help if you are overrun by giant slugs.