Pods & fruit
Sweet corn
Cobs picked while the kernels are sweet and milky.
Sowing & planting windows in Australia
Planting timing varies by broad Australian gardening zone. Local weather, unusual seasons and your garden’s microclimate can shift timing.
Cool
Sow · Oct-Jan
Core months: January, October, November, December
Temperate
Sow · Sep-Jan
Core months: January, September, October, November, December
Subtropical
Sow · Aug-Feb
Core months: January, February, August, September, October, November, December
Tropical
Sow · All year
Core months: January, February, March, April, May, June, July, August, September, October, November, December
Arid
Sow · Sep-Jan
Core months: January, September, October, November, December
Getting started
Sow into warm soil. Grow plants in a block of short rows rather than a single long row to help wind pollination; leave room for full-sized plants.
The right conditions
Choose a sunny, sheltered site with fertile, well-drained soil. Sweet corn needs warmth and adequate moisture to develop a good crop.
As it grows
Keep weeds down and water during dry weather, especially around flowering and cob development. Check seed instructions about separating varieties, since cross-pollination can affect kernel quality.
Ready to harvest
When the silks brown, check a cob: kernels should be plump and release milky juice when pressed. Pick promptly at this stage and use soon after harvest for best sweetness.
Plant guidance: Desk-reviewed against linked sources; not field-tested. Planting windows are a guide rather than a rule.