This species is a low growing mat-forming perennial which will grow to about 25cm. The leaves are elliptic to oblanceolate 3-10cm and basal, they are dark green turning bronze-red in the autumn. The flowers are borne in dense upright spikes of pink-red blooms in late summer to medium autumn.
How to propagate Knotweed
Divide clumps in autumn or spring.
Other uses of Knotweed
Ground cover, walls, rock garden, borders