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Plant Encyclopedia

Thalia dealbata

Thalia dealbata (powdery alligator-flag, "Mizukanna")

Japanese name: ミズカンナ
Scientific name: Thalia dealbata

Thalia dealbata

[Overview]
A perennial growing in marshes and shallow water, reaching as much as 3 m tall.
It has a short rhizome.
The whole plant is covered with a white powder.
The leaves are simple and basal, elliptic to lanceolate, 30–60 cm long and 15–20 cm wide, firm in texture, with entire margins.
The leaf stalk is about 1 m long.
A spike about 20 cm long emerges at the tip of the flower stalk and bears about 10–30 flowers.
The petal-like staminodes, colored purple, are conspicuous in the flowers.
The bracts are heavily covered with white powder.
The fruit is a round capsule.

[Cultivation]
Propagate from seed or by division.
It can overwinter outdoors in warm regions where frost does not fall.
It prefers a sunny location.

Details

Names
English: powdery alligator-flag, hardy canna, powdery thalia
Japanese: ミズカンナ、ヌマバショウ(沼芭蕉)
Life form
Perennial
Habit
Terrestrial, Aquatic
Planting (or sowing) season
April, May, June
Flowering season
July, August, September, October
Distribution or origin
Central to southern United States
Height
3000 mm
Leaf shape
Simple leaf (unlobed)
Leaf arrangement
Basal
Leaf margin
Entire
Inflorescence
Spike
Flower color
Purple
Inflorescence length
200
Leaf color
Green
Availability of seeds and plants
Low
Form sold
Seedlings
Propagation
Seed, Division
Sun exposure
Full sun
Water needs
Moist
Soil needs
Required
Suitable uses
Waterside greening
Japan Flower Trade Code
21789

Translated from our Japanese encyclopedia. If anything differs, the Japanese page is correct.

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