Helianthus angustifolius ~ Swamp Sunflower multicolored-bloom and hummingbirds

and hummingbirds

Mulch in cold winters to prevent root upheaval

as well as several moths

Drought and heat tolerant once established

Rock Gardens

Helianthus angustifolius ~ Swamp Sunflower multicolored-bloom and hummingbirdsSwamp Sunflower is a salt tolerant late blooming perennial and doesnt spread aggressively like other sunflower selections. The showy yellow flowers that resemble large daises bloom in fall and continue until frost. Best bloom in full sun in acidic and moist to wet well drained soils. Helianthus angustifolius acts as a host for several butterflies, including the Silvery Checkerspot Butterfly. It attracts various butterflies and caterpillars which in