Fruiting vegetable
Can you grow Cucumber on a balcony?
Cucumis sativus
Yes — grows well in pots
Cucumber (Cucumis sativus) grows well on a balcony in a pot of at least 20 litres (about 30 cm deep). It needs full sun — around 6+ hours of direct sun a day. Cropping mid-summer through mid-autumn; pick mini varieties at ~8cm, small-fruited at ~15cm, full-sized at 20–25cm. All figures below are sourced from RHS and the Old Farmer's Almanac.
Sun
☀️ Full sun (6+ h)
Min. pot
20 L · 30 cm
Water
High
Difficulty
Moderate
Hardiness
Annual
Container fit
Good
Sow
Sow indoors from late April (outdoor types), or direct sow outdoors late May–early June once frost has passed; greenhouse types from mid-Feb
Harvest
Cropping mid-summer through mid-autumn; pick mini varieties at ~8cm, small-fruited at ~15cm, full-sized at 20–25cm
Good companions: Dill and borage nearby attract beneficial insects
Balcony tip: Use a pot at least 30cm wide and deep (or a growing bag for two plants), keep compost evenly moist with daily watering in hot spells, and water at the base not the foliage
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More fruiting vegetables for balconies
Häufige Fragen
What size pot does Cucumber need?
Cucumber needs a container of at least 20 litres, roughly 30 cm deep. Bigger pots dry out more slowly and give better yields on a balcony.
How much sun does Cucumber need on a balcony?
Cucumber wants full sun — about 6+ hours of direct sun daily. Match it to your balcony's aspect before buying seed.
When do you sow Cucumber?
Sow indoors from late April (outdoor types), or direct sow outdoors late May–early June once frost has passed; greenhouse types from mid-Feb. Timing shifts with your climate/USDA zone — the linked sources give the detail.
Sources & date
- RHS: Cucumber
- Old Farmer's Almanac: Cucumber
- Data as of: 2026-07-10
- Container sizes and timings are guidance — adjust to your climate/USDA zone and balcony aspect.