Description Kniphofia ‘Royal Castle’ Red-hot Poker. A vigorous, clump-forming, semi-evergreen perennial with long lance-shaped dark green leaves. From June to September, on tall stout stems, terminal spikes of bright orange, red or yellow flowers are borne. Grow in deep, fertile, humus-rich soil, moist but well-drained soil, in full sun or partial shade. It will reach a height of 90cm and a spread of 60cm. Supplied size 1 x Plant in 9cm Container
