How to grow Geranium in the UK
Pelargonium
Geranium (Pelargonium) is a flower that grows well in UK gardens. Drought tolerant — drier-loving than most bedding. Overwinter indoors at 7C+ to save for next year. This guide covers when and how to sow Geranium, the soil and position it likes, watering and feeding, companion planting, and when to harvest.
Type
Flowers
Difficulty
Easy — good for beginners
Position
full sun (6+ hrs direct)
Sow
spring
Harvest
—
When to sow & grow Geranium
Sowing and harvest window through the year (UK):
Jan | Feb | Mar | Apr | May Plant | Jun Plant | Jul | Aug | Sep | Oct | Nov | Dec |
Soil, position & care
- Soil
- Any reasonable, moisture-retentive but free-draining soil
- Soil pH
- 6.0–7.5
- Position
- Full sun for most; some tolerate light shade
- Sowing depth
- Surface to 1 cm (check light requirement)
- Spacing
- 15–30 cm apart
- Sowing
- Sow under cover late winter–spring, or direct after the last frost
- Growing
- Water regularly; pinch tips for bushier plants
- Harvest & upkeep
- Deadhead often to prolong flowering
- Watch for
- Slugs and snails on seedlings; aphids on soft growth
Companion planting for Geranium
No specific companion notes for this plant.
Grow Geranium this year
Add Geranium to your free 12-month plan and get watering & sowing reminders — no sign-up needed.
Geranium FAQs
How much sun does Geranium need?
Geranium prefers full sun (6+ hrs direct).
Is Geranium easy to grow?
Easy — good for beginners. Drought tolerant — drier-loving than most bedding. Overwinter indoors at 7C+ to save for next year.