Helianthus atrorubens ‘Monarch’ (Dark-eye sunflower). An upright perennial with daisy-like, semi-double, deep yellow flowers carried on branching stems in late summer. Leaves are lance-shaped and medium green.
Perennial, Shrub or Herbaceous
Grown for their large, daisy-like usually yellow flower heads.
Italics = data drawn from parent genus or species, most usually relevant for the plant in view