How to grow Hardy Geranium in the UK
Geranium
Hardy Geranium (Geranium) is a flower that grows well in UK gardens. Bombproof border filler. 'Rozanne' flowers June to October. Don't confuse with bedding pelargoniums. This guide covers when and how to sow Hardy Geranium, the soil and position it likes, watering and feeding, companion planting, and when to harvest.
When to sow & grow Hardy Geranium
Sowing and harvest window through the year (UK):
Jan | Feb | Mar | Apr Plant | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
Soil, position & care
- Soil
- Fertile, moisture-retentive but free-draining soil
- Soil pH
- 6.0–7.5
- Position
- Sun or part shade depending on species
- Sowing depth
- Plant at the same depth as the pot
- Spacing
- 30–60 cm apart
- Sowing
- Plant container-grown stock spring or autumn; divide established clumps in spring
- Growing
- Water well the first season until established; mulch in spring
- Harvest & upkeep
- Cut back faded foliage in late autumn or early spring; divide every 3–4 years
- Watch for
- Slugs and snails on new shoots; otherwise robust
Companion planting for Hardy Geranium
Grows well with:
Add Hardy Geranium to your free 12-month plan and get watering & sowing reminders — no sign-up needed.
Hardy Geranium FAQs
What grows well with Hardy Geranium?
Hardy Geranium grows well alongside Bush Rose. Good companions can deter pests, attract pollinators or make better use of space.
How much sun does Hardy Geranium need?
Hardy Geranium prefers partial sun (3–6 hrs).
Is Hardy Geranium easy to grow?
Easy — good for beginners. Bombproof border filler. 'Rozanne' flowers June to October. Don't confuse with bedding pelargoniums.