Edible flowers

Sunflower

Seed-filled heads to harvest as their backs turn yellow.

Sunflower botanical illustration

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 · Sep–Dec

Core months: September, October, November, December

Possible / shoulder months: January

Temperate

Sow · Aug–Dec

Core months: August, September, October, November, December

Possible / shoulder months: January, February

Subtropical

Sow · Jan–May, Aug–Dec

Core months: January, February, March, April, May, August, September, October, November, December

Tropical

Sow · Mar–Nov

Core months: March, April, May, June, July, August, September, October, November

Possible / shoulder months: January, February, December

Arid

Sow · Jan–Feb, Aug–Dec

Core months: January, February, August, September, October, November, December

Possible / shoulder months: March, April, May, June, July

Getting started

Sow directly where plants will grow; thin seedlings to the spacing needed at maturity.

The right conditions

Choose full sun, fertile free-draining soil and reliable moisture.

As it grows

Water consistently while establishing, keep weeds down and provide support where the mature habit needs it. Watch for local pests and remove damaged growth.

Ready to harvest

Cut flower heads when seeds are plump and the back yellows.

Plant guidance: Desk-reviewed; not field-tested. Planting windows are a guide rather than a rule.