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botanical name:
Helianthus atrorubens
Helianthus atrorubens © Deeproot Plant Base
common name:  Dark-eye Sunflower, Perennial Sunflower
synonyms:  Helianthus sparsifolius
family:  Asteraceae
characteristics: perennial
height: 1.50m
width: 1.20m
growth rate: medium
growth habit: clump
leaf colour: green
flower colour: yellow
stem/bark: purple & green
main season: Summer
aspect: full sun, part shade
conditions: dry soil, moist soil, sandy soil
preferred soil pH: any
minimum temp: -18°C
USDA zone: 6 to 9
Clump-forming perennial sunflower with hairy purple-green stems and hairy, toothed mid-green leaves up to 30cm long. Deep yellow daisy flowers with dark purple-maroon centres, on long, winged petioles.

other notes:
Native of dry woodlands in the southeastern USA.
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