Flowers: May-June. Plant in light shade or sun. HxS 70x70cm
This species loves a wet or boggy soil and will bulk up quickly in the right conditions. It should not be planted as a marginal however. The flowers have rich blue standards and ruffled falls in mid-blue, contrasting well with the semi-evergreen, sword shaped leaves. Fairly vigorous with an upright habit. Pot size 1.5 litre. Hardiness rating H7.
Care & Maintenance.
Very little required. Remove spent flowers or collect seed. Remove old foliage in spring. Can be divided in spring or autumn and rhizomes should be planted 4cm/2ins deep.