When to Plant Rocket (Arugula) in Melbourne — Cool Temperate Guide
Photo: Wikimedia Commons
Rocket is a fast-growing, peppery salad green available in two types: annual salad rocket (milder, bolt-prone) and wild/perennial rocket (stronger flavour, slower to bolt). Annual rocket matures in 4-6 weeks and self-seeds prolifically. Wild rocket is slower but more heat-tolerant and perennial in mild climates. Both are essential in salad gardens and among the easiest greens to grow in Australia.
Current Growing Conditions
Soil temperature: 21.9°C (optimal range: 5–25°C) ✓ Ready to plant
How to Grow Rocket (Arugula) in Cool Temperate Australia
When to Plant
September-May. Grows well in cool conditions. Frost-tolerant.
- Soil
- Well-drained soil with moderate organic matter. Not fussy about soil quality. Performs well in average garden soil.
- pH Range
- 6.0-7.0
- Sunlight
- Full sun in cool weather. Part shade essential in warm weather to slow bolting and reduce bitterness.
- Spacing
- 15cm apart, 25cm between rows
- Watering
- Regular watering to keep soil moist. Drought stress makes leaves intensely bitter and triggers bolting. Morning watering. Light, frequent irrigation best.
Companion plants: Lettuce, Tomato, Strawberry, Bean, Dill
Avoid planting near: No strong antagonists known
Cool Temperate Growing Tips for Rocket (Arugula)
Recommended Varieties
- Annual rocket
- Wild rocket
Key Challenges
- Slow growth in cold winters
- Slugs in wet weather
Pro Tips
- Melbourne's cool climate is excellent for year-round rocket production
- One of the most cold-tolerant salad greens
- Wild rocket persists as a perennial in Melbourne gardens
Harvesting Rocket (Arugula)
When ready: Baby leaf: 8-10cm (3-4 weeks). Full size: 15-20cm (5-6 weeks). Leaves should be bright green and firm. Harvest before flower stalk appears for best flavour.
How to harvest: Cut-and-come-again: cut leaves 3cm above ground. Or pick individual outer leaves. Annual rocket gives 2-3 cuts before bolting. Wild rocket gives many more cuts.
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