Herb
Can you grow Lemon Balm on a balcony?
Melissa officinalis
Yes — great in containers
Lemon Balm (Melissa officinalis) grows well on a balcony in a suitable container. It needs full sun — around 6+ hours of direct sun a day. Pick the citrus-scented leaves through the growing season; harvest regularly for best flavour.. All figures below are sourced from RHS and the Old Farmer's Almanac.
Sun
☀️ Full sun (6+ h)
Water
Medium
Difficulty
Easy
Hardiness
USDA 4-9
Container fit
Excellent
Sow
Sow seed 1/4 to 1/2 inch (0.5-1 cm) deep in spring; also propagates easily by division or stem cuttings.
Harvest
Pick the citrus-scented leaves through the growing season; harvest regularly for best flavour.
Good companions: Chives, lemon thyme and lovage; plant around bed borders to attract pollinators and repel pests
Balcony tip: Confine to a pot to stop it spreading; the compact 'Compacta' variety suits containers and can overwinter indoors. Avoid overwatering (causes root rot).
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What size pot does Lemon Balm need?
Container size for Lemon Balm isn't specified by our sources for a single value — as a rule, give roots room and don't let a small pot dry out. Check the linked RHS/Almanac page.
How much sun does Lemon Balm need on a balcony?
Lemon Balm wants full sun — about 6+ hours of direct sun daily. Match it to your balcony's aspect before buying seed.
When do you sow Lemon Balm?
Sow seed 1/4 to 1/2 inch (0.5-1 cm) deep in spring; also propagates easily by division or stem cuttings.. Timing shifts with your climate/USDA zone — the linked sources give the detail.
Sources & date
- RHS: Lemon Balm
- Old Farmer's Almanac: Lemon Balm
- Data as of: 2026-07-10
- Container sizes and timings are guidance — adjust to your climate/USDA zone and balcony aspect.