Our Native Irises: Louisiana Irises
Iris giganticaerulea: Giant Blue Iris
The giant blue iris occurs sporadically within Louisiana, the west edge of Mississippi, and eastern Texas.
Iris giganticaerulea has a very large (largest flower of the Louisiana irises), light blue to lavender to purple flower, sometimes white to yellowish-white but generally with a blue to purple color. The sepals are widely spreading, arching downward. The signal is a rich yellow, with a yellow-orange stripe along the pubescent central rib. The petals are semi-erect and are smaller and narrower than the sepals. The flower is fragrant with a musky scent. The inflorescence is multi-flowered with two terminal flowers on an erect stem, arising above the leaves. The bright green leaves are stiff and erect, arising from shallowly rooted, branching rhizomes that can form large colonies.
Iris giganticaerulea is commonly found growing in shallow water in wet meadows, marshes, wet ditches, and bogs.