White turtlehead (Chelone glabra) is native to much of the eastern US and Canada, except the deep south. It grows along streams, in moist woods, and swampy areas in part shade conditions. It prefers rich humusy soil and appreciates a lot of leaf mulch.
Here in South Central PA, it is a host plant to 5 caterpillar species. Growing 2-3' tall, they bloom in late summer to fall with white snapdragon-like flowers. This would be a great plant for a partly shaded rain garden.
Sources: USDA, National Wildlife Federation, Missouri Botanical Garden
PHOTO: @ all.things.flora
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