Astrantia ‘Hadspen Blood’: A Dark Beauty for Shady Borders
Astrantia ‘Hadspen Blood’, commonly known as Hadspen Blood Masterwort, is a striking deciduous perennial treasured for its rich, dark red blooms and refined garden presence. Belonging to the Apiaceae family, this cultivar stands out with its intricate flower structure and deeply pigmented tones that make it one of the darkest red Astrantias available.
Developed by Nori Pope at Hadspen Garden in Somerset, England, ‘Hadspen Blood’ originates from a cross between Astrantia major and Astrantia maxima. Its unique coloration and reblooming nature have secured it a place in many discerning gardeners’ collections. Though sometimes listed under Astrantia carniolica or Astrantia major, this plant has carved its own identity through performance and appeal.
Description and Features of Astrantia ‘Hadspen Blood’
Reaching about 35 cm (14 inches) tall with a flowering height of up to 60 cm (24 inches), this clump-forming perennial presents medium green foliage often tinged with red. From late spring through summer, it sends up dark maroon-red stems topped with pincushion-like flowers surrounded by deep purplish-red bracts. Though delicate in appearance, these blooms are highly durable and beloved by pollinators such as bees and butterflies.
The real stars of this plant are the uniquely textured, starry blooms, which aren’t true petals but bracts that encase the small central florets. Their deep, blood-red hue sets them apart from most pink or pale Astrantias and makes them especially eye-catching in shaded or woodland settings.
How to Grow Astrantia ‘Hadspen Blood’
Light
Astrantia ‘Hadspen Blood’ thrives in part sun to dappled shade. While it can tolerate full sun, especially in cooler climates, it requires consistent soil moisture to prevent stress. Too much shade can reduce flowering, so a balance is ideal: morning sun followed by afternoon shade suits it best.
Soil
This perennial excels in rich, humus-laden soils that retain moisture yet drain well. It adapts well to heavier clay soils, provided they don’t dry out completely. Add compost or well-rotted manure to improve structure and nutrient content.
Watering
Keep the soil evenly moist, especially during dry spells or in sunnier exposures. Avoid letting the soil dry out completely. Once established, it becomes more tolerant of occasional dryness but still prefers consistent moisture.
Fertilizing
Feed in spring with a balanced fertilizer or top-dress with compost. In poorer soils, apply another round of fertilizer in midsummer to support prolonged blooming. Organic options like coffee grounds or composted leaf mulch also help improve flowering.
Pruning
Deadhead spent flowers promptly to encourage a second flush. After the first flowering period, cut back the stems to the base. In autumn, cut down the foliage and flower stems to prevent overwintering of pests or mildew spores.
Propagation
Division
The most effective propagation method is division. In early spring or fall, dig up the clumps and gently separate them into smaller sections, each with roots and shoots. Replant immediately and water thoroughly.
Seed
While possible to grow from seed, germination is unpredictable. For best results, cold stratify seeds for 2-3 months and sow in fall or early spring. Scarification can also help improve results.
Cuttings
Softwood cuttings may be taken in spring. Use rooting hormone and keep in a humid environment until rooted. This method is slower but useful for preserving desirable traits.
Pests and Diseases
Astrantia ‘Hadspen Blood’ is generally pest-free but may encounter aphids, slugs, and powdery mildew. Aphids can be removed with a strong spray of water or insecticidal soap. Use slug traps or deterrents in spring. To manage mildew, cut back affected growth in autumn and provide good air circulation.
Seasonal and Garden Use
Hardy in USDA zones 5 through 9, this perennial is most vigorous in cooler climates where night temperatures dip below 21°C (70°F). It makes a strong statement in mixed borders, under light tree cover, or along shaded stream banks. Its long-lasting flowers also serve well in cut arrangements and dry flower crafts.
Landscape Value and Cultural Significance
Astrantia ‘Hadspen Blood’ is prized for its rich coloration, compact habit, and ability to shine in the dappled light of woodland gardens. It pairs beautifully with ferns, hostas, and other shade-loving perennials. Gardeners value it not only for its ornamental impact but also for its ecological contribution as a pollinator-friendly species.
Still considered one of the finest dark red Astrantia cultivars, ‘Hadspen Blood’ continues to enrich garden palettes with its uniquely moody hues and intricate form. Easy to grow, long-blooming, and versatile in garden design, it holds an enduring place among the most admired shade perennials.
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