Flower
Can you grow Snapdragon on a balcony?
Antirrhinum majus
Yes — grows well in pots
Snapdragon (Antirrhinum majus) grows well on a balcony in a suitable container. It needs full sun — around 6+ hours of direct sun a day. Tubular two-lipped flowers on upright spikes appear in summer and autumn.. All figures below are sourced from RHS and the Old Farmer's Almanac.
Sun
☀️ Full sun (6+ h)
Water
Medium
Difficulty
Moderate
Hardiness
USDA 7-10
Container fit
Good
Sow
Sow seed at 16-18C in late summer/early autumn (overwinter under glass) or in early spring; surface sow as seed needs light.
Harvest
Tubular two-lipped flowers on upright spikes appear in summer and autumn.
Balcony tip: Grow in full sun in well-drained compost; on exposed balconies support taller varieties with stakes and deadhead to prolong flowering.
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What size pot does Snapdragon need?
Container size for Snapdragon 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 Snapdragon need on a balcony?
Snapdragon wants full sun — about 6+ hours of direct sun daily. Match it to your balcony's aspect before buying seed.
When do you sow Snapdragon?
Sow seed at 16-18C in late summer/early autumn (overwinter under glass) or in early spring; surface sow as seed needs light.. Timing shifts with your climate/USDA zone — the linked sources give the detail.
Sources & date
- RHS: Snapdragon
- Old Farmer's Almanac: Snapdragon
- Data as of: 2026-07-10
- Container sizes and timings are guidance — adjust to your climate/USDA zone and balcony aspect.