When to Plant Lemon Balm in Canberra, Cold / Highland Guide

Sow September to January. Right now in September you can sow.

This Lemon Balm guide is written for the Cold / Highland zone, which takes in Canberra, Cooma and Bright. Somewhere else? Your postcode picks the right one.

Not your zone? Cairns Brisbane Sydney Melbourne Alice Springs Perth

Also handy: will it frost this week? and what grows in shade.

Lemon Balm

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 Cold / Highland

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
T - - - - - - - S S/T/D S/T/D S/T/D

S = Seed Tray   T = Transplant   D = Direct Sow

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Current Growing Conditions

Soil temperature: 11.2°C (optimal range: 10–25°C) ✓ Ready to plant

Modelled from Open-Meteo forecast (Canberra), not a live sensor.

How to Grow Lemon Balm in Cold / Highland Australia

When to Plant

Plant Oct-Dec.

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

Cold / Highland Growing Tips for Lemon Balm

Recommended Varieties

  • Standard Melissa officinalis

Key Challenges

  • Short active season

Pro Tips

  • Hardy perennial that survives most frosts
  • Mulch crowns for winter protection

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 Cold / Highland Zones

Aphids and Powdery Mildew, risk: MODERATE (score: 45/100)

Organic prevention: Good air circulation. Avoid overfertilising.

View all pest alerts →

Where to next

Also worth sowing in the cold and highland zone this September: Sweet Corn, Beetroot, Chilli Peppers and Snow Peas.

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Common Questions About Lemon Balm

When do you plant lemon balm in Australia?

It depends on your climate zone, not the calendar month alone. Planting months by zone:

Does lemon balm grow all year round in Canberra?

No. In the Cold / Highland zone the planting months are Jan, Sep to Dec. Outside that window it either bolts, sulks or gets cut down by the weather.

Which zone am I in?

Type your postcode into the box under the heading and the page 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 Cold / Highland zone, Canberra is its reference city.