Iris sibirica 'Caesar's Brother', Siberian Iris

Very tall, upright standards on flowers of violet-blue in late spring to early summer. Blooms are held high about narrow, upright leaves that stay green late into fall. Happiest in moist conditions, but can tolerate some drought. An attractive, hard worker that puts up with neglect.

Mature size: 3-4 ft T x 1.5-2 ft W

Minimum temperature: -40° F