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Eastern North American native found in swampy areas and along streams. Excellent remedy for colds and intermittent fever, especially for flu. Medical evidence suggests that it enhances the immune system. Caution: contains pyrrolizidine alkaloids; not recommended for long term use. Ht. 30-150cm/1-5ft.
Hardiness zone
4-8
Exposure
Sun-PartSun
Germease
Moderate; Special Treatment Required
Sow times
Spring; Late Summer; Early Fall
Product use
Medicinal
Duration
Perennial