How to grow Astrantia in the UK
Astrantia major
Astrantia (Astrantia major) is a flower that grows well in UK gardens. Loves damp, slightly shaded conditions. 'Roma' and 'Hadspen Blood' are popular dark cultivars. This guide covers when and how to sow Astrantia, the soil and position it likes, watering and feeding, companion planting, and when to harvest.
Type
Flowers
Difficulty
Easy — good for beginners
Position
partial sun (3–6 hrs)
Sow
spring
Harvest
—
When to sow & grow Astrantia
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 Astrantia
No specific companion notes for this plant.
Grow Astrantia this year
Add Astrantia to your free 12-month plan and get watering & sowing reminders — no sign-up needed.
Astrantia FAQs
How much sun does Astrantia need?
Astrantia prefers partial sun (3–6 hrs).
Is Astrantia easy to grow?
Easy — good for beginners. Loves damp, slightly shaded conditions. 'Roma' and 'Hadspen Blood' are popular dark cultivars.