Perth, Western Australia
When to plant radish in Perth
Station data · 80% confidence cool seasonhardy to frost
- Direct sowearly JulyJul 4 – Jul 25 · 80% conf.
- Harvestlate JulyJul 29 – Aug 3 · 72% conf.
The growing window at a glance
Frost-free growing season · 343 daysFrost risk (before Aug 1 / after Jul 10)
Radish at a glance in Perth
- Needs soil above 5°C to germinate well.
- Days to maturity: 25–30 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 radish outdoors in Perth?
Direct-sow around early July (Jul 4–Jul 25) in Perth, based on its local frost dates. Confidence 80%.
When will radish be ready to harvest in Perth?
Expect to harvest from around late July (Jul 29–Aug 3) in Perth, based on its local frost dates. Confidence 72%.
How long is the growing season in Perth?
Perth has roughly 343 frost-free days, which is enough time to grow radish to maturity outdoors.