Leafy green
Can you grow Mustard Greens on a balcony?
Brassica juncea
Yes — great in containers
Mustard Greens (Brassica juncea) grows well on a balcony in a pot of at least 10 litres. It needs full sun — around 4+ hours of direct sun a day. Baby leaves ~3-4 weeks after sowing; full leaves 30-60 days (6-8 weeks) depending on variety.. All figures below are sourced from RHS and the Old Farmer's Almanac.
Sun
☀️ Full sun (4+ h)
Min. pot
10 L
Water
High
Difficulty
Easy
Hardiness
Annual
Container fit
Excellent
Sow
Sow in modules or direct from spring to late summer; light shade in warm weather helps prevent bolting.
Harvest
Baby leaves ~3-4 weeks after sowing; full leaves 30-60 days (6-8 weeks) depending on variety.
Good companions: Good for filling gaps between slower crops; grows well with other salad leaves
Balcony tip: Use a container at least 30cm (12in) wide - smaller pots dry out too fast; water in the morning to reduce slug and snail attraction.
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More leafy greens for balconies
Häufige Fragen
What size pot does Mustard Greens need?
Mustard Greens needs a container of at least 10 litres. Bigger pots dry out more slowly and give better yields on a balcony.
How much sun does Mustard Greens need on a balcony?
Mustard Greens wants full sun — about 4+ hours of direct sun daily. Match it to your balcony's aspect before buying seed.
When do you sow Mustard Greens?
Sow in modules or direct from spring to late summer; light shade in warm weather helps prevent bolting.. Timing shifts with your climate/USDA zone — the linked sources give the detail.
Sources & date
- RHS: Mustard Greens
- Old Farmer's Almanac: Mustard Greens
- Data as of: 2026-07-10
- Container sizes and timings are guidance — adjust to your climate/USDA zone and balcony aspect.