Care of the aquatic plant Thalia dealbata or Hardy Water Canna |
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The genus Thalia, family Marantaceae, comprises 6 species of aquatic plants native to the American continent. Some species are: Thalia dealbata, Thalia densibracteata, Thalia geniculata, Thalia multiflora, Thalia pavonii, Thalia petersiana. Common names: Powdery alligator-flag, Hardy Water Canna, Powdery thalia. This species is native to the southern and central United States. They are aquatic evergreen plants with tuberous roots with bluish-green, shovel-shaped leaves and long peduncles. The flowers appear in spikes at the end of long stems and are purplish in color. They bloom in summer. Hardy Water Canna is used to decorate small lakes and ponds. Thalia dealbata needs full sun or semi-shade exposure. It does not resist frost. Powdery alligator-flag is planted in containers with a topsoil soil and immersed in the water at least 20 cm (7.87"). Planted directly in the ground it can become invasive. Prune in winter to remove wilted flower stalks and dry leaves. Thalia dealbata is an easy to grow plant that is not usually attacked by pests and diseases. Hardy Water Canna is easily propagated in spring by division of the tubers. |
Images of the aquatic plant Thalia dealbata or Hardy Water Canna |
 Thalia dealbata  Thalia dealbata  Thalia dealbata  Thalia dealbata |