Thalia dealbata
Hardy Canna
Thalia dealbata is usually grown as an aquatic ornamental because of the pretty flowers, and in cultivation has been proven hardy. Branching panicles of small violet blue flowers. Glaucous blue leaves. Suitable for ponds and lakes in full sun. Height 180 cm. Flowering time mid to late summer.
Contributed by @bel
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Full sun
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Frequent watering
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Frost Hardy: 23F (-5°C)
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Aquatic
Common name
Hardy Canna
Latin name
Thalia dealbata
type
Perennial
family
Marantaceae
ph
5.0 - 8.5 Acid - Neutral
Plant & bloom calendar
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Best time to plant
full grown dimensions
Thalia dealbata
Thalia dealbata is usually grown as an aquatic ornamental because of the pretty flowers, and in cultivation has been proven hardy. Branching panicles of small violet blue flowers. Glaucous blue leaves. Suitable for ponds and lakes in full sun. Height 180 cm. Flowering time mid to late summer.
Propagation
From Early Spring TO Mid Spring
Propagate by division when lifting and replant when ready in spring
Planting in Spring
From Early Spring TO Mid Spring
In early Spring fill largish pots with compost to start them off, cover them with the compost but if there are any shoots leave them exposed. Sink container at the pond margin in a water depth of 10-60 cm over the crown.