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Care of the plant Thalia dealbata or Hardy Water Canna.

Care of the plant Thalia dealbata or Hardy Water Canna

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.

They are used to decorate small lakes and ponds.

Thalia dealbata needs full sun or semi-shade exposure. They do not resist frost.

They are planted in containers with a topsoil soil and immersed in the water at least 20 cm. Planted directly in the ground they can become invasive.

Prune in winter to remove wilted flower stalks and dry leaves.

They are easy to grow plants that are not usually attacked by pests and diseases.

They are easily propagated in spring by division of the tubers.

Images of the plant Thalia dealbata or Hardy Water Canna

Thalia dealbata
Thalia dealbata
Thalia dealbata
Thalia dealbata
 

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