When to Plant Squash (Summer) in Brisbane, Subtropical Guide
Sow August to March. Right now in September you can sow.
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 Subtropical zone, which takes in Brisbane, the Gold Coast and the Sunshine Coast. Somewhere else? Your postcode picks the right one.
Not your zone? Cairns 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 Subtropical
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| S/T/D | T/D | T | - | - | - | - | S | S | S/T/D | S/T/D | S/T/D |
S = Seed Tray T = Transplant D = Direct Sow
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Current Growing Conditions
Soil temperature: 20.4°C (optimal range: 18–35°C) ✓ Ready to plant
That figure is read off my own weather station here at Dayboro in South East Queensland at 18:55 yesterday, not a model. The radar, the rain gauge and the forecasts behind it sit on Dayboro.au.
How to Grow Squash (Summer) in Subtropical Australia
When to Plant
September to March.
- 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
Subtropical Growing Tips for Squash (Summer)
Recommended Varieties
- Pattypan
- Yellow Crookneck
- Scallopini
- Sunburst
Key Challenges
- Powdery mildew January+
- Pumpkin beetle
Pro Tips
- Pick daily in warm weather
- Milk spray weekly from January
- Very productive
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 Brisbane?
No. In the Subtropical zone the planting months are Jan to Mar, Aug to Dec. 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 Subtropical zone, Brisbane is its reference city.