When to Plant Squash (Summer) in Cairns, Tropical Guide
Sow March to August. Right now in September it is out of season. The next sowing month is March.
Published · Last reviewed · By Garden Buddy
Growing advice is reviewed by hand. Planting dates, current conditions and prices on this page update daily.
This Squash (Summer) guide is written for the Tropical zone, which takes in Cairns, Townsville and Darwin. Somewhere else? Your postcode picks the right one.
Not your zone? Brisbane Sydney Melbourne Canberra Alice Springs Perth
Also handy: will it frost this week? and what grows in shade.
Photo: Wikimedia Commons
Summer squash includes pattypan (button), crookneck, straightneck, and scallop types, all Cucurbita pepo. Fast-growing, prolific warm-season crops harvested immature. Bush habit suits smaller gardens. Distinct from winter squash (hard rind, long storage).
Planting Calendar for Tropical
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| - | - | S | S/T/D | S/T/D | S/T/D | T/D | T | - | - | - | - |
S = Seed Tray T = Transplant D = Direct Sow
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Current Growing Conditions
Soil temperature: 21.4°C (optimal range: 18–35°C) ✓ Ready to plant
Modelled from Open-Meteo forecast (Cairns), not a live sensor.
How to Grow Squash (Summer) in Tropical Australia
When to Plant
Year-round, dry season preferred.
- Soil
- Rich, well-drained soil with compost.
- pH Range
- 6.0-7.0
- Sunlight
- Full sun (minimum 6 hours)
- Spacing
- 90cm apart, 120cm between rows
- Watering
- Deep water 2-3 times weekly at base. Consistent moisture during fruiting.
Companion plants: Corn, Beans, Nasturtium, Marigold
Avoid planting near: Potato, Other C. pepo if seed saving
Tropical Growing Tips for Squash (Summer)
Recommended Varieties
- Pattypan White/Yellow
- Yellow Crookneck
- Scallopini
Key Challenges
- Powdery mildew severe
- Pumpkin beetle
- Wet season fungal
Pro Tips
- Fast crop: 45-55 days seed to harvest
- Pick fruit small (10-15cm)
- Succession plant for year-round supply
Harvesting Squash (Summer)
When ready: Pattypan: 5-8cm diameter. Crookneck: 15-20cm. Skin tender (pierce with thumbnail). Glossy.
How to harvest: Cut with sharp knife leaving 2cm stem. Pick YOUNG. Check plants daily in warm weather.
Where to next
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Open the planting dashboard Join Garden BuddyCommon Questions About Squash (Summer)
When do you plant squash in Australia?
It depends on your climate zone, not the calendar month alone. Planting months by zone:
- Tropical (Cairns): Mar to Aug
- Subtropical (Brisbane): Jan to Mar, Aug to Dec
- Warm Temperate (Sydney): Jan to Feb, Jul to Dec
- Cool Temperate (Melbourne): Jan to Feb, Jul to Dec
- Cold / Highland (Canberra): Jan to Feb, Aug to Dec
- Arid / Semi-Arid (Alice Springs): Jan to Mar, Aug to Dec
- Mediterranean (Perth): Jan to Feb, Jul to Dec
Does squash grow all year round in Cairns?
No. In the Tropical zone the planting months are Mar to Aug. Outside that window it either bolts, sulks or gets cut down by the weather.
Which zone am I in?
Type your postcode into the box under the heading and the page tells you, and links this crop in your own zone if it differs. Or look it up on the grow zone map. This page is the Tropical zone, Cairns is its reference city.