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Canna glauca
Also called Louisiana Canna, Yellow Flowered Glaucous Canna, Water Canna
Canna glauca is a perennial aquatic or wetland herb from the Canna genus, grown for its narrow blue-green leaves and pale yellow flowers. The key to growing it is keeping its roots wet, as it thrives as a marginal plant in shallow water or very moist soil.
Canna glauca is a species of the Canna genus, a member of the family Cannaceae. It is commonly known as water canna or Louisiana canna. It is native to the wetlands of tropical America and was introduced to England in 1730. It is also reportedly naturalized in Sri Lanka, Thailand, Vietnam, Java and the Philippines.
The species prefers light (sandy), medium (loamy) and heavy (clay) soils and requires well-drained soil. The preferred soil is acid, neutral and basic (alkaline). It cannot grow in the shade and requires moist soil. It is hardy to zone 10 and is frost tender. In the north latitudes it is in flower from August to October, and the seeds ripen in October.
C. glauca is native to the southeastern and south-central United States (Texas, Florida, Louisiana and South Carolina) as well as Mexico, Central America, South America and the West Indies. It is an aquatic species, growing as a marginal plant in up to about 15 cm (5.9 in) of still or slow-moving water.
Text excerpted from the Wikipedia article Canna glauca by its contributors, under CC BY-SA 4.0; the excerpts and the care summary drawn from them are shared under the same licence.
The care summary was written by AI (Claude, Anthropic) from the sources on this page, with general growing knowledge where they are silent. Check before relying on it.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
