Star of Billion Masterwort
Star of Billion Masterwort (Astrantia major 'Star of Billion')
Star of Billion Masterwort (Astrantia major 'Star of Billion'), also known as White Blush Masterwort, is an elegant, clump-forming perennial admired for its delicate white flowers with soft pink hues and intricate, star-like bracts. Blooming from early to late summer, this long-blooming variety adds a refined charm to borders, woodland gardens, and cut flower arrangements, while attracting bees and butterflies.
Distinctive Features
Star of Billion Masterwort forms a dense, compact mound of deeply lobed, dark green foliage that serves as an attractive backdrop for its intricate, pincushion-like flowers. The soft white blooms, delicately flushed with pink and highlighted by papery bracts, create an airy and elegant texture in mixed plantings. This variety thrives in moist, partially shaded conditions, making it a versatile addition to garden landscapes.
Growing Conditions
- Sun Exposure: Prefers partial shade; tolerates full sun in cool climates.
- Soil: Thrives in rich, well-drained, consistently moist soil.
- Water: Requires regular watering; prefers evenly moist conditions.
- Humidity: Adaptable to moderate humidity levels.
- USDA Hardiness Zones: 4-7, making it ideal for temperate regions.
Ideal Uses
- Shaded Borders: Adds refined beauty and texture to shaded garden spaces.
- Woodland Gardens: Complements other moisture-loving perennials.
- Mixed Borders: Enhances the aesthetic appeal of summer-flowering perennials.
- Mass Planting: Creates a soft, layered display when grouped.
- Cut Flower Gardens: Long-lasting blooms are excellent for fresh and dried floral arrangements.
Low Maintenance Care
Star of Billion Masterwort is an easy-care perennial that rewards gardeners with continuous blooms and minimal upkeep.
- Watering: Keep soil consistently moist; does not tolerate prolonged drought.
- Pruning: Deadhead spent flowers to prolong blooming; cut back in late fall.
- Fertilizing: Benefits from compost or organic mulch in spring to support healthy growth.
- Pest and Disease Resistance: Generally pest-free; deer and rabbit resistant.
- Winter Care: Cut back dead foliage in late fall; apply mulch in colder climates for winter protection.
Why Choose Star of Billion Masterwort?
Star of Billion Masterwort is a refined, shade-loving perennial that provides season-long beauty and ecological benefits.
- Soft White-Pink Blooms: Elegant flowers with a subtle pink blush create a sophisticated look.
- Compact and Graceful Growth: Well-suited for small gardens and shaded spaces.
- Attracts Pollinators: Supports bees and butterflies with nectar-rich blooms.
- Thrives in Shade: Ideal for woodland and moisture-retentive gardens.
- Low Maintenance: Requires little care once established.
For an elegant, long-blooming perennial that enhances shaded landscapes and floral arrangements, Star of Billion Masterwort (Astrantia major 'Star of Billion') is an exceptional choice.

OUR SIZING
Not sure what 2 inch B&B or 30 Gallon Clump really means? This guide breaks down all our plant size terms so you know exactly what to expect, whether you're ordering online or picking up at our nursery. From caliper measurements to container volumes, we've decoded our system to help you shop with confidence.

Plant Detectives Shipping Guide
Nationwide plant shipping made easy. Learn how we ship trees, shrubs, annuals and perennials. No order too big or too small. Fast, careful, and contractor-friendly.