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Pale Dock

Rumex altissimus

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Category
Forb / Wildflower
Sun
Full to Partial
Soil moisture
Medium-Wet to Medium
Bloom time
Jun–Aug
Bloom color
Green

About Pale Dock

Pale Dock is a robust and architectural native perennial that adds structural interest to moist landscape areas. This plant is distinguished by its smooth, pale green stems and large, lance-shaped leaves, with the plant reaching 2 to 4 feet in height. During the summer months of May through August, it produces tall, branched clusters of small green flowers that eventually transition into attractive reddish-brown seed heads. Native to a broad range across North America, Pale Dock is typically found in wet prairies, riverbanks, and disturbed moist soils. It provides significant ecological value by offering cover for small wildlife and serving as a larval host for various copper butterflies. Pale Dock is remarkably easy to grow in full to partial sun and prefers medium-wet to medium soils. Its deep taproot makes it quite drought-tolerant once established, though it truly flourishes in consistently moist conditions.

Native range

Native to 38 states:

AlabamaArkansasArizonaColoradoConnecticutD.C.DelawareGeorgiaIowaIllinoisIndianaKansasKentuckyLouisianaMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiNorth CarolinaNebraskaNew HampshireNew JerseyNew MexicoNew YorkOhioOklahomaPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasVirginiaWisconsinWest Virginia

County range map

BONAP county-level native range map for Rumex altissimus

Range map courtesy of BONAP (Biota of North America Program).

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