Perth, Western Australia
When to plant kale in Perth
Station data · 80% confidence cool seasonvery-hardy to frost
- Direct sowmid JulyJul 11 – Aug 1 · 80% conf.
- Harvestearly SeptemberSep 4 – Sep 24 · 72% conf.
- Start seeds indoorsmid JuneJun 20 – Jul 11 · 76% conf.
- Transplant outdoorsmid JulyJul 11 – Aug 1 · 80% conf.
The growing window at a glance
Kale at a glance in Perth
- Needs soil above 5°C to germinate well.
- Days to maturity: 55–75 days.
- Climate zone: Mediterranean, hot summer (Csa).
Frost dates are probabilities, not guarantees. Your garden's microclimate — slopes, walls, urban heat, cold pockets — can shift these dates by a week or more. Use them as a confident starting point, then watch your local forecast.
Frequently asked
When can I sow kale outdoors in Perth?
Direct-sow around mid July (Jul 11–Aug 1) in Perth, based on its local frost dates. Confidence 80%.
When will kale be ready to harvest in Perth?
Expect to harvest from around early September (Sep 4–Sep 24) in Perth, based on its local frost dates. Confidence 72%.
When should I start kale seeds indoors in Perth?
Start seeds indoors around mid June (Jun 20–Jul 11) in Perth, based on its local frost dates. Confidence 76%.
When can I transplant kale outdoors in Perth?
Transplant outdoors around mid July (Jul 11–Aug 1) in Perth, based on its local frost dates. Confidence 80%.
How long is the growing season in Perth?
Perth has roughly 343 frost-free days, which is enough time to grow kale to maturity outdoors.