Astrantia major Claret (Great Masterwort)

One of the darkest-flowered Astrantias, Astrantia major ‘Claret’ (Masterwort) features dramatic clusters of tiny, deep ruby-red flowers crowded together in a dome-shaped flowerhead, just like pins on a cushion. They are surrounded by an elegant ruff of long papery bracts.

One of the darkest-flowered Astrantias, Astrantia major 'Claret' (Masterwort) features dramatic clusters of tiny, deep ruby-red flowers crowded together in a dome-shaped flowerhead, just like pins on a cushion. They are surrounded by an elegant ruff of long papery bracts. The distinctive blooms are borne on nearly black stems, well above the rosette of lush, deeply cut, mid-green leaves that are adorned with burgundy around the edges when young.

  • Blooms for weeks from late spring to early summer, and sporadically throughout the summer where conditions are to its liking.
  • Spreading slowly from the rootstock, this Astrantia has a neat habit and grows in a clump of deeply divided leaves, up to 36 in. tall (90 cm) and 12 in. wide (30 cm).
  • Thrives in full sun or part shade in rich, medium to wet, well-drained soils. Soils need to be kept consistently moist. Best performance occurs in cool summer climates as Astrantias do not like very hot, humid or dry conditions.
  • A vital ingredient of herbaceous borders, cottage gardens, and woodlands. Great weavers, Astrantias mix well with other plants and associate beautifully with Ornamental Grasses, Sedums, and many other perennials. Plant them in drifts or at the border front of mixed borders where their attractive blooms can be appreciated. This plant is also valued for the excellent quality of its cut flowers, whether in bouquets or dried floral arrangements.
  • Easy to grow, deer-resistant, disease and pest-free, wet soil tolerant, Astrantia is a perennial plant that is rich in many qualities aside from its good looks!
  • Easily grown from seeds sown fresh. Deadheading will prolong flowering and prevent self-seeding. Astrantias do spread a little but can easily be held back. Dividing clumps help maintain vigor.
  • Propagate by division in spring

Requirements

Hardiness 5
– 7

Heat Zones 1
– 7

Climate Zones 4, 5, 6, 7, 8, 9, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24
Plant Type Perennials
Plant Family Astrantia – Masterworts
Exposure Full Sun, Partial Sun
Season of Interest Spring (Late)Summer (Early,Mid,Late)
Height 2'
– 3'
(60cm
– 90cm)
Spread 10"
– 1'
(25cm
– 30cm)
Spacing 12″ (30cm)
Water Needs Average
Maintenance Average
Soil Type Chalk, Clay, Loam, Sand
Soil pH Acid, Alkaline, Neutral
Soil Drainage Moist but Well-Drained, Poorly Drained
Characteristics Dried Arrangements, Cut Flowers, Showy
Tolerance Deer, Wet Soil
Attracts Butterflies
Garden Uses Beds and Borders, Ponds and Streams, Wall-Side Borders
Garden Styles City and Courtyard, Informal and Cottage