About Canna glauca L.
Canna glauca L. is a perennial herb that reaches 3–6 feet (91–183 cm) in height. It produces narrow, blue-green glaucous leaves, topped by large, delicate, pale yellow flowers.
This species is native to the southeastern and south-central United States, specifically Texas, Florida, Louisiana, and South Carolina, as well as Mexico, Central America, South America, and the West Indies. It is an aquatic plant that grows as a marginal species in still or slow-moving water up to approximately 15 cm deep.
In cultivation, Canna glauca grows well in light sandy, medium loamy, and heavy clay soils, and requires well-drained soil. It tolerates a wide range of soil pH, including acidic, neutral, and basic alkaline conditions. It cannot grow in shade, requires moist soil, is hardy to USDA zone 10, and is frost tender. At northern latitudes, it flowers from August to October, and its seeds ripen in October.
