Thalia Dealbata - Plant
Description for Thalia Dealbata
Powdery thalia is a rhizomatous, herbaceous perennial with a bluish, glaucous coating on leaves, flower stalks, and flowers.
The planting hole should allow for the length of the rhizome and should be deep enough for one inch of soil to cover the top of the rhizome. Water levels should be kept at about 1-2 inches until the plants become established and should never be allowed to cover the entire shoot of non-dormant plants.
In a constructed wetland, sewageeffluent should not be introduced into the water until the plants become established. Although seedlings rarely establish naturally in most wetland situations, seedlingscan be produced easily indoors. Seed collection should be delayed until the majority of the fruit in the cluster has turned brown, because immature fruit will fall from the cluster along with ripe ones when the cluster is shaken toremove the fruit.
It is not necessary to remove the fruit coverings before sowing, but this is easily done by rubbing. The seed can be stored dry, but should be placed in a moist medium and stored in the refrigerator for three months before sowing. The growing medium must bekept moist, but not saturated and air temperatures should be at least 75Â°F. The seedlings can be planted in the wetland when they are approximately one foot tall.
|Common name||Flower colours||Bloom time||Height||Difficulty|
|Powdery alligator-flag.,thalia dealbata, the powdery alligator-flag, hardy canna, or powdery thalia,||Purple.||Late Summer/Early Fall.||4-6 ft.||Easy.|
Planting and care
Light applications of a complete fertilizer will improve growth throughout the growing season, but care should be taken to prevent fertilizer movement into the ground water. In a constructed wetland, the levels of nutrients applied in the sewage may be sufficient to maintain acceptable growth.
|Sun to Partial Shade.||fertile, loamy, humus-rich soil in up to 15cm of water.||remains above the water level.||-10 - 35 degrees F||Regularly use a fertilizer rich in nitrogen every 15-20 days.|
Caring for Thalia Dealbata
- As perennials establish, it is important to prune them back and thin them out occasionally.
- This will prevent them from completely taking over an area to the exclusion of other plants, and also will increase air circulation thereby reducing the incidence of diseases like botrytis and powdery mildew.
Typical uses of Thalia Dealbata
Ornamental use: The plant has been grown as an aquatic ornamental because of the pretty violet flowers. Water garden, Bog or pond area.
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