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Overwintering Marginal and Tropical Pond Plants in a Cold Climate

Hardy Lilies

Leave in pond if crown is below ice (18-24" deep).

Tropical Floaters (Hyacinth, Lettuce)

Difficult indoors. Need intense light (grow lights), warm water (70°F+). Often decline. Compost and buy new in spring.

Marginals (Cattail, Iris, Arrowhead, Horsetail)

Hardy. Leave in pond at proper depth. Or pot and keep soil soggy in a cold garage/basement.

Moist-Pot Plants (Papyrus, Umbrella Palm, Mexican Petunia)

Pot in soil, keep constantly wet, bright light, 50-60°F. They stay green all winter.

Floaters (Azolla, Duckweed)

Keep in tubs with water in a bright basement.

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