Iris longipetala, Long Petaled Iris is a 2 ft. perennial, non-rhizomorphic. Long Petaled Iris has large 4-6 inch, blue flowers, and grows in clay soils around S.F. bay. This one has done well here with once/week watering in full sun. The clumps are actually expanding. The flowers are quite nice and makes an excellent cut flower with a light scent.
Seems to be hardy to at least 0 F. About as drought tolerant as Lavender, but prefers some water.
(Bailey is the only key that is easy on iris.)
Iris longipetala tolerates clay.
Foliage of Iris longipetala has color gray and is stressdeciduous.
Flower of Iris longipetala has color blue and has a fragrance.
Communities for Iris longipetala:Mixed-evergreen Forest and Coastal Prairie.