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Woody weeds - Rhodora

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Prepared by Jennifer L. D’Appollonio, Assistant Scientist, University of Maine, Orono, ME 04469. Updated February 2018.

Scientific name: Rhododendron canadense (L.) Torr.

Common name(s): rhodora, Canada rosebay

Links: USDA PLANTS Profile, NPIN Profile, Go Botany

Images(click on images to see enlargements)


flowers before and/or with leafout

– generally flowers late May-early June in ME


Hansen, R.W., S.B. Hansen and E.A. Osgood. 1991. Reproductive phenologies of selected flowering plants in eastern Maine forests. ME Agric. Exp. Station Tech. Bull. 143. 17 pp.

Heinrich, B. 1976. Flowering phenologies: Bog, woodland, and disturbed habitats. Ecology. 57(5):890-899.

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