When to plant choy sum in Perth
Perth sits in Australia's temperate zone. Computed from Perth's Bureau of Meteorology climate averages, here is the choy sum window:
Sow
April – November
Transplant
—
Harvest
~2 months after sowing
Temperate zone tip
Perth, Sydney, and Adelaide suit choy sum well through autumn and winter. Avoid December through February, too hot for reliable production.
Frost matters here: the last frost around Perth typically falls in September, with the first returning around May.
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Open your calendar →Frequently asked questions
When can I plant choy sum in Perth?
In Perth (temperate zone), sow seed April – November. Expect to harvest roughly 2 months after sowing.
Can you grow choy sum in Perth?
Yes — choy sum grows well around Perth when planted in its window. Perth, Sydney, and Adelaide suit choy sum well through autumn and winter. Avoid December through February, too hot for reliable production.