PlantSowGrow
How to plant and care for Astrantia (Masterwort)
Astrantia major 'Roma'
🌸 Flower
🔁 Perennial
Pincushion flowers with papery, star-like collars in soft pink, from June to September. Wonderful in vases and loved by bees.
When to plant and care for it
JanFebMarAprMayJunJulAugSepOctNovDec
Flowers
Timed for a typical UK garden (last frost mid-April). The app uses your own town's frost dates.
Growing Astrantia (Masterwort): what it needs
- Light
- Part shade · 6+ hours a day
- Watering
- Water well until established, then in dry spells
- Soil
- Moist, fertile soil
- Spacing
- 45 cm
- Height
- 60 cm
- In pots
- Grows well in containers
- Feeding
- A little general feed in spring
- Hardiness
- USDA zones 4–8
Step by step
- On planting day
Plant
Plant at the same depth as it was in its pot, 45 cm apart, and firm in.
- 0–1 days after “Plant”
Water In Well
Give a full can of water, then keep moist for the first few weeks while roots establish.
- 7–14 days after “Water In Well”
Mulch Around the Base
Spread 5 cm of compost or bark around the plant, keeping it off the stems.
Every year
- MarchCut Back Old Growth
Cut last year's dead stems and leaves to the ground before the new shoots get going.
- JuneIn Flower
Pincushion flowers in full swing.
- JulyTrim After Flowering
Cut back the first flush of flowers and leaves to encourage a second flush.
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