Bulbous semi-evergreen perennial with large lilac-blue flower heads from darker buds July-Aug. Ht to 80cm
PVR. Large flower heads of mid violet-blue flowers over a long period from June-Sept. Ht 80-100cm. Strappy evergreen foliage may need winter protection.
PVR. Free-flowering hardy deciduous type with rich dark violet-blue flowers and a darker bar July-Sept. Narrow strappy leaves are blue-black at the base. Ht 60-80cm
Syn. Midnight Star. Popular semi-evergreen variety with the deepest blue flowers on blue-black stems July-Sept. Ht 60-80cm