Hi - Zone 7b - Southern Maryland. This plant has been in my pond for two years and I bought it without a tag. It gets white snapdragon shaped flowers. It has seeded itself outside the pond in one place. It is not especially rampant grower. About 1.5 feet tall with opposite leaves. It overwinters in the pond with no special care. The leaves underwater turn brown and mush away. The plant blooms all summer with new stalks branching from the main stems. You can see one of the blooms that has fallen off. The pads are not part of the plant. The photograph was taken in bright sunlight which is giving a paler, yellowish cast to the leaves. They are darker green than shown.

The center of the plant is a favorite spot for one of the bullfrogs that live in my pond. Thanks. CT

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