Pickerelweed is an aquatic or marsh perennial with a cluster of erect arrowhead-shaped leaves arising from a single basal clump. Throughout late spring and summer, pickerelweed produces showy 6-8 inch spires of violet-blue flowers standing on stalks 2-3 ft high. The individual flowers are about 1 inch across and elaborately-beautiful, reminiscent of an orchid. Pickerelweed often forms dense stands that paint a summertime marsh purplish-blue. This plant is very easy to cultivate and should be a part of any water garden.