When to plant sunflower in Adelaide
Adelaide sits in Australia's temperate zone. Computed from Adelaide's Bureau of Meteorology climate averages, here is the sunflower window:
Sow
September – May
Transplant
—
Harvest
~3 months after sowing
Temperate zone tip
Sydney sunflowers planted in September produce flowers through summer.
Frost matters here: the last frost around Adelaide typically falls in August, with the first returning around June. Sunflower is frost-sensitive, so keep it inside that frost-free run.
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Open your calendar →Frequently asked questions
When can I plant sunflower in Adelaide?
In Adelaide (temperate zone), sow seed September – May. Expect to harvest roughly 3 months after sowing.
Can you grow sunflower in Adelaide?
Yes — sunflower grows well around Adelaide when planted in its window. Sydney sunflowers planted in September produce flowers through summer.