Astrantia major

Astrantia major, commonly known as masterwort, is a clump-forming perennial prized for its intricate, pincushion-like flower heads surrounded by papery bracts in shades of soft pink, white, or dusky red, depending on the variety. Flowering from late spring through summer, the blooms rise above attractive, deeply lobed green foliage and are excellent for cutting, drying, or attracting pollinators. Typically grows 60-90 cm high and 40-50 cm wide, making it ideal for cottage, woodland, and naturalistic garden styles.

Plant in partial shade with moist, humus-rich, free-draining soil. Tolerates full sun if soil remains consistently moist. Space plants 40-50 cm apart to allow for mature spread and airflow. Deadhead to prolong flowering or leave seed heads for winter interest. Cut back old growth in late autumn or early spring. A long-flowering, low-maintenance perennial that adds refined texture and movement to shaded or semi-shaded areas.

Trimming: Cut back flower stems after the first flush of flowering to encourage a second bloom later in the season. In late autumn, cut back all top growth to ground level as it dies back naturally.

Deadheading: Regularly remove spent flower heads to prolong flowering and reduce self-seeding, especially in garden settings where spreading is not desired.

Fertilising: Feed in early spring with a balanced, slow-release fertiliser. In lean soils, a mid-season liquid feed can help maintain vigour and extend the flowering period.

Watering: Water regularly during establishment and during dry periods. Astrantia prefers consistently moist, well-drained soil and does best in part shade. Mulch annually to help retain soil moisture and suppress weeds.

Pest Control: Generally pest-free, though slugs and snails may occasionally target young growth. Use organic slug control methods if needed.

Disease Management: Ensure good airflow and avoid overcrowding to reduce the risk of fungal issues such as mildew or leaf spot. Remove and dispose of any affected foliage promptly. Avoid waterlogging by ensuring soil is free-draining.