Perth, Western Australia
When to plant lettuce in Perth
Station data · 80% confidence cool seasonhalf-hardy to frost
- Direct sowearly JulyJul 4 – Jul 25 · 80% conf.
- Harvestlate AugustAug 25 – Sep 9 · 72% conf.
- Start seeds indoorsearly JulyJul 4 – Jul 25 · 76% conf.
- Transplant outdoorsmid JulyJul 11 – Aug 1 · 80% conf.
The growing window at a glance
Lettuce at a glance in Perth
- Needs soil above 4°C to germinate well.
- Days to maturity: 45–60 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 lettuce outdoors in Perth?
Direct-sow around early July (Jul 4–Jul 25) in Perth, based on its local frost dates. Confidence 80%.
When will lettuce be ready to harvest in Perth?
Expect to harvest from around late August (Aug 25–Sep 9) in Perth, based on its local frost dates. Confidence 72%.
When should I start lettuce seeds indoors in Perth?
Start seeds indoors around early July (Jul 4–Jul 25) in Perth, based on its local frost dates. Confidence 76%.
When can I transplant lettuce 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 lettuce to maturity outdoors.