When to Plant Squash (Summer) in Canberra — Cold / Highland Guide
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).
Current Growing Conditions
Soil temperature: 18.9°C (optimal range: 18–35°C) ✓ Ready to plant
How to Grow Squash (Summer) in Cold / Highland Australia
When to Plant
November to December.
- 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
Cold / Highland Growing Tips for Squash (Summer)
Recommended Varieties
- Pattypan (fast-maturing)
Key Challenges
- Short frost-free window
Pro Tips
- Start indoors
- Black plastic mulch
- Bush habit makes row covers practical
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.
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