An educational awards program of the Elisabeth Carey Miller Botanical Garden

Astrantia majorRoma PBR

astrantia

Image © Richie Steffen/Great Plant Picks
Image © Richie Steffen/Great Plant Picks
Image © Richie Steffen/Great Plant Picks

Printer-friendly Fact Sheet

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Outstanding Qualities While not as bold as some of their perennial counterparts, astrantias deserve a place in any woodland garden or partly shady border. Like little pincushions, their abundant blooms float above rosettes of midsized, deeply lobed, bright green leaves. The small individual flowers (the ‘pins’) are papery and age with grace. They are set among a ruff of similarly long-lasting, papery bracts. Flowers appear in early summer, and continue to look attractive until late summer. The individual flowers of ‘Roma’ are soft pink, as is the surrounding ruff. Combine ‘Roma’ with bold foliage plants such as Acanthus and hostas. Its soft flower color works well with other pastels, or green-and-white variegated plants, such as Brunnera macrophylla ‘Jack Frost’. Use astrantias in large numbers under trees as a groundcover, and you won’t mind cutting them for fresh or dried arrangements.
Culture Astrantias thrive in moist, humus-rich or heavy clay soil. With good soil moisture, astrantias can be planted in full sun, as the species grow wild in damp meadows and along stream banks. However, if you have fast-draining, sandy soil, plant your astrantias in part shade and water them during prolonged periods of drought, otherwise the foliage will scorch. Astrantias produce more flowers with half-day sun. In full shade, there are fewer flowers but the foliage is still very attractive and lush. To increase plants and to keep them vigorous, divide astrantias in early spring or late fall about every three years.
Growing Habit ‘Roma’ is a clump-forming, herbaceous perennial, with bright green leaves cut into three to seven, toothed lobes. Its small flowers, produces from June to September, are soft pink, as is its encircling ruff of bracts. ‘Roma’ grows about 36 inches high and 24 inches wide.
Hardiness USDA zones 4 to 8