Iris germanica is the tall bearded Iris that sings 'summer' in the border. The stems of unique 'iris' blooms come in thousands of cultivars, with many combinations of many colours. All thrive in full sun, well drained soils. 'Black Knight' is part of the search for the true black flower. It has stunning dark purple-black flowers. Plant in a sunny well drained spot. Divide every 3-4 years to keep plant vigorous.
Bloom time May-June
Hardiness Zone 3
Please note: This picture shows what the plant may look like when more mature. At this time our plants may not look like this.