Clump-forming perennial with slender red stems, and masses of star-shaped, white flowers in summer.
Fiery red autumn foliage. Partial shade.
Height: 3ft (90cm)
Surface sow on moist seed compost and place inside a clear plastic bag. Keep moist with temperatures of about 20°C (68°F) for 2-4 weeks, followed by a cooling period (-4 to +4°C) of 4-6 weeks. Seeds
should germinate in spring.
Best sown in: Autumn