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Dentaria maxima
@ Juniper Level Botanic Gdn, NC

Dentaria maxima

Giant Toothwort

Item #: 6993

Zones: 4a to 7b, at least

Height: 10" tall

Culture: Light Shade

Origin: United States

Pot Size: 3.5" pot (24 fl. oz/0.7 L)

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(aka: Cardamine maxima) This unusual toothwort, found in moist rich (often alkaline) woods from ME south to KY, is thought to be a sterile hybrid between D. diphylla and D. laciniata. The rich olive-green tripartite (three-lobed) leaves emerge in mid-October (NC) and make a slowly spreading clump to 3' in 7 years. In April in NC, the clumps are topped with 10" stalks of 1/2" white flowers. After flowering, the clumps remain attractive until late summer when they go dormant. D. maxima is a very easy-to-grow plant for the winter/spring woodland garden.

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