About

Astilbe 'Irene Rottseiper' is a robust perennial that typically reaches heights of 90 to 100 cm. It features apple green stems topped with feathery flower plumes in pale pink-purple, emerging above the lush mid-green leaves. This variety blooms from late July through August.

About the genus

Astilbe are perennial plants with rhizomes, characterized by their dissected leaves that typically have a ternate structure. In summer, they produce upright panicles filled with small flowers in shades of white, pink, or purple. The dried flower heads persist into autumn, adding interest to the landscape.

Plant details

Height

0.5-1 metres

Spread

0.5-1 metres

Care notes

Cultivation

Grow in moist or boggy soil in dappled shade, where the soil never dries out and remains moisture-retentive in summer. Drought intolerant, and may be scorched in direct sun. Good for waterside and woodland planting. See Astilbe cultivation

Pruning

Flowering stems can be tidied and cut back when flowers fade, but can also be left for winter interest and wildlife habitat

Propagation

Propagate by division in late winter to early spring; replant immediately or pot up and grow on under glass to plant out in late spring when plants are re-established

Pest resistance

May be susceptible to vine weevil

Disease resistance

May be susceptible to leaf spot weather damage and powdery mildews