When to Plant Lemon Balm in Brisbane, Subtropical Guide
Photo: Wikimedia Commons
A vigorous perennial herb with lemon-scented leaves related to mint. Easy to grow, spreads by runners and self-seeding. Can become invasive like mint. Mainly used for herbal teas, salads, and desserts. Tolerant of shade and a wide range of conditions. One of the most beginner-friendly herbs.
Planting Calendar for Subtropical
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| - | - | - | - | - | - | - | S | S/T/D | S/T/D | T/D | - |
S = Seed Tray T = Transplant D = Direct Sow
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Current Growing Conditions
Soil temperature: 15.5°C (optimal range: 10–25°C) ✓ Ready to plant
That figure is read off my own weather station here at Dayboro in South East Queensland, not a model. The radar, the rain gauge and the forecasts behind it sit on Dayboro.au.
How to Grow Lemon Balm in Subtropical Australia
When to Plant
Plant year-round. Best Mar-May or Aug-Oct.
- Soil
- Any reasonable soil with organic matter. Tolerates most conditions.
- pH Range
- 6.0-7.5
- Sunlight
- Full sun to part shade. Tolerates more shade than most herbs.
- Spacing
- 30cm apart, 45cm between rows
- Watering
- Regular watering for best growth. Tolerates some drought once established.
Companion plants: Most vegetables and herbs, Fruit trees
Subtropical Growing Tips for Lemon Balm
Recommended Varieties
- Standard Melissa officinalis
- Gold-leaf variety
Key Challenges
- Can become invasive
- Summer humidity causes mildew
Pro Tips
- Grow in pot or contained bed
- Cut back 2-3 times per season
- Excellent in part shade
Harvesting Lemon Balm
When ready: Harvest once plant is 20cm+ tall. Best flavour before flowering.
How to harvest: Cut stems 5cm above ground. Entire plant can be cut to ground 3-4 times per season.
Common Lemon Balm Pests in Subtropical Zones
Organic prevention: Good air circulation. Avoid overfertilising.
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