How to Grow Rockmelon in Australia
A warm-season fruiting crop for the home garden
Growing your own Rockmelon is one of the more satisfying things you can do in an Australian backyard. It is rated intermediate to grow. Saves ~$5-10/melon, SEQ summer heat produces exceptionally sweet fruit.
This guide covers when to plant Rockmelon in your region, the position and soil it likes, how to sow and space it, day-to-day care, the pests and diseases to watch, and how to harvest and store your crop.
When to Plant in Your Region
Rockmelon is a warm-season crop, frost-tender and needs a frost-free run. In subtropical South-East Queensland it is sown in September, October, November, December and January. Timing shifts with your climate, so choose your region below for a local calendar.
Position and Soil
Give Rockmelon full sun (at least 6 hours a day). It does best in free-draining soil with a pH around 6 to 7. Dig through plenty of compost before planting, and mulch to hold moisture and keep weeds down. It needs an open garden bed rather than a pot, getting too big or deep-rooted for containers.
Sowing and Spacing
Sow seed about 2 cm deep. Thin or space plants to about 100 cm apart. Seedlings usually appear in around 8 days, fastest when the soil is between 22 and 32 degrees.
Harvest when skin turns from grey-green to tan and fruit separates easily from vine. Stop watering 1-2 weeks before harvest to concentrate sweetness.
Care
Water consistently, roughly 10 L per plant every 3 days in warm weather, less in cool or wet spells. Feed every few weeks through the growing season with a balanced organic fertiliser, and keep mulch topped up.
Pests and Diseases
Keep an eye out for Fruit fly and Cucumber beetle. The main diseases to watch are Powdery mildew. Good spacing, watering at the base rather than over the leaves, and crop rotation prevent most problems. See our Pest and Disease Guide to identify and fix any issue.
Harvesting and Storage
Rockmelon is typically ready to harvest in around 85 days (about 3 months). Bench until fully ripe (fragrant), then fridge for 3 to 4 days.
In the Kitchen
In the kitchen, rockmelon is good fresh as a breakfast fruit, wrapped with prosciutto as an entrée, blended into chilled soups and made into sorbet or granita. Nutritionally: excellent source of vitamins A and C and good source of potassium and fibre.
Companion Planting
Rockmelon grows well alongside Corn and Nasturtium. Keep it away from Potato. Our Companion Planting Guide has the full pairings.
Track Your Rockmelon Growing
Add rockmelon to your garden in the Planting Season app and get reminders for planting, care and harvest, tuned to your region.
Open the App →Frequently Asked Questions
When should I plant Rockmelon in Australia?
Rockmelon is a warm-season crop. In subtropical regions like South-East Queensland it is sown in September, October, November, December and January. Timing changes with your climate, so use the calendar above for your region.
How long does Rockmelon take to grow?
Rockmelon is generally ready to harvest in around 85 days (about 3 months).
Can I grow Rockmelon in a pot?
It is best grown in an open garden bed rather than a pot, needing more root room than a container gives.
How much sun does Rockmelon need?
Give it full sun (at least 6 hours a day) for the healthiest growth and best harvest.
See also: Rockmelon in the Plant Library
