Perth, Western Australia
When to plant leek in Perth
Station data · 80% confidence cool seasonhardy to frost
- Harvestlate OctoberOct 26 – Nov 15 · 72% conf.
- Start seeds indoorslate MayMay 23 – Jun 13 · 76% conf.
- Transplant outdoorsmid JulyJul 18 – Aug 8 · 80% conf.
The growing window at a glance
Frost-free growing season · 343 daysFrost risk (before Aug 1 / after Jul 10)
Leek at a glance in Perth
- Needs soil above 7°C to germinate well.
- Days to maturity: 100–120 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 will leek be ready to harvest in Perth?
Expect to harvest from around late October (Oct 26–Nov 15) in Perth, based on its local frost dates. Confidence 72%.
When should I start leek seeds indoors in Perth?
Start seeds indoors around late May (May 23–Jun 13) in Perth, based on its local frost dates. Confidence 76%.
When can I transplant leek outdoors in Perth?
Transplant outdoors around mid July (Jul 18–Aug 8) 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 leek to maturity outdoors.