When to Plant Wax Gourd in Melbourne, Cool Temperate Guide
Soil temperature is modelled from Open-Meteo forecast (Melbourne), not a live sensor.
What this month normally looks like in Cool Temperate
In October the Cool Temperate zone normally runs 19°C by day and 8°C overnight, with about 67 mm of rain over 9 or 10 wet days. The coldest October night on record across the zone was -3.0°C, so a late frost is not out of the question. Averages 1991 to 2026, 28 postcodes, SILO.
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This Wax Gourd guide is written for the Cool Temperate zone, which takes in Melbourne, Hobart and Geelong. Somewhere else? Your postcode picks the right one.
Not your zone? Cairns Brisbane Sydney Canberra Alice Springs Perth
Also handy: will it frost this week? and what grows in shade.
- Planting window
- Oct to Dec
- Days to harvest
- about 14 weeks
- Sun
- Full sun
- Water
- Regular
- Soil pH
- 6.0–7.5
Benincasa hispida is wax gourd or Chinese winter melon, a frost-tender vine. It is distinct from Cucurbita winter squash and from the chi-qua cultivar group.
Published · By GardenBuddy.au
Planting dates, current conditions and prices on this page update daily.
Photo: Wikimedia Commons
Planting Calendar for Cool Temperate
- Jan -
- Feb -
- Mar -
- Apr -
- May -
- Jun -
- Jul -
- Aug -
- Sep -
- Oct S
- Nov T/D
- Dec T
S = Seed Tray T = Transplant D = Direct Sow
Want a nudge when it is sowing time?
One email a week with what is worth planting in the Cool Temperate zone right now, Wax Gourd included, plus which veg has jumped in price at the supermarket. Free, and you can stop it in one click.
How to Grow Wax Gourd in Cool Temperate Australia
- Soil
- Rich, fertile, organic-rich well-draining loam
- Salt
- Moderately sensitive. Copes with a little salt, but the harvest drops on salty bore water.
- pH Range
- 6.0-7.5
- Sunlight
- Full sun, at least 6 to 8 hours of direct sun a day
- Spacing
- 50-100cm apart, 150cm between rows
- Watering
- Water consistently and mulch to hold moisture in the soil.
- Good companions
- Nasturtium, Dwarf Beans, Sweet Corn, Radish, Spring onion
Cool Temperate Growing Tips for Wax Gourd
Recommended Varieties
- Giant Wax (Wax gourd)
Key Challenges
- Powdery Mildew: Weakens leaves and reduces the crop
- Queensland Fruit Fly: Destroys ripe fruit
- Aphids and whitefly: Sap loss, sticky honeydew and sooty mould, and spread of mosaic viruses
- Pumpkin beetle (Leaf-eating ladybird): Lacy, skeletonised leaves and scarred young fruit
Pro Tips
- Incorporate well-rotted manure or compost before planting; feed with a high-potassium liquid organic fertiliser fortnightly once flowering begins
- Apply a thick organic straw mulch around plant bases to conserve soil moisture, regulate root temperature, and prevent gourds from touching bare dirt
- Can be grown on strong vertical trellises or arbors to keep fruits clean, using slings or net bags to support heavy developing gourds
Pests and problems for Wax Gourd in Cool Temperate
- Queensland Fruit Fly Queensland Fruit Fly: Destroys ripe fruit Watch
- Mosaic Viruses Use clean seed, control weeds and keep vectors down. Watch
- Powdery Mildew Grow on a trellis for airflow, avoid crowding and avoid overhead watering. Watch
- Aphids and whitefly Aphids and whitefly: Sap loss, sticky honeydew and sooty mould, and spread of mosaic viruses Watch
- Pumpkin beetle (Leaf-eating ladybird) Pumpkin beetle (Leaf-eating ladybird): Lacy, skeletonised leaves and scarred young fruit Watch
Harvesting Wax Gourd
When ready: Fruit skin develops a white powdery chalk-like waxy bloom, the stem turns brown and dry, and the rind feels thick and hard
How to harvest: Cut fruit stem with sharp secateurs leaving a 3 to 5 cm stem stub attached to the gourd
What members get
- Soil and weather from your nearest station
- An email when it's time to sow
- Your own garden plan, including planning from a photo
- Price history and price alerts
- Pest risk alerts for your area
- Full salt and canning detail
Common Questions About Wax Gourd
When do you plant wax gourd in Australia?
It depends on your climate zone, not the calendar month alone. Planting months by zone:
- Tropical (Cairns): Feb to Sep
- Subtropical (Brisbane): Jan to Feb, Aug to Dec
- Warm Temperate (Sydney): Sep to Dec
- Cool Temperate (Melbourne): Oct to Dec
- Cold / Highland (Canberra): not recommended
- Arid / Semi-Arid (Alice Springs): Jan, Sep to Dec
- Mediterranean (Perth): Sep to Nov
Can you grow wax gourd all year round in Melbourne?
No. In the Cool Temperate zone the planting months are Oct to Dec. Outside that window it either bolts, sulks or gets cut down by the weather.
When should I plant Wax Gourd in Melbourne?
Start in trays in October and plant out in November to December, or sow direct in November.
What soil temperature do Wax Gourd need?
Wax Gourd germinate best when soil temperature is between 22°C and 30°C.
How do I know when Wax Gourd are ready to harvest?
Fruit skin develops a white powdery chalk-like waxy bloom, the stem turns brown and dry, and the rind feels thick and hard
What are the best Wax Gourd varieties for Melbourne?
Recommended varieties for the Cool Temperate zone include: Giant Wax (Wax gourd).
What grows well with Wax Gourd?
Good companion plants for Wax Gourd include: Nasturtium, Dwarf Beans, Sweet Corn, Radish, Spring onion.
Are wax gourd salt tolerant?
Only a little. Wax gourd are moderately sensitive to salt, so the harvest drops on salty bore water. Mix salty water with rainwater, and mulch the bed.
Which zone am I in?
Type your postcode into the box near the top of the page and it 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 Cool Temperate zone, Melbourne is its reference city.