Ageratina altissima

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Common Name: White Snakeroot

Part sun to light shade, medium to moderately dry moisture level, prefers rich humus but will accept a wide range of soils including clay, slightly acid to neutral pH.  2-5 ft. height, blooms in fall, white flowers, spreads slowly by rhizomes and more aggressively by re-seeding.

Germination Code:  A, D

Native Region: Statewide

Showy clusters of white flowers in September and October.  Will spread to form colonies.