Bloom Color
Bloom Time
Exposure
Soil Type
Other Attributes
SLENDER BLUE FLAG
Iris prismatica
Violet flowers in June. 10 – 14″ tall. Full sun – part shade; moist, organically rich soil. Distinctive three sided seed pods shaped like a prism. Spreading habit. Deer resistant. Excellent for naturalizing. Northeastern U.S. native. Our plants are Long Island native. Zone 3.