Machaeranthera canescens

Hoary Aster: The big purple daisies of this fall-blooming biennial light up the Boise foothills in fall. In the garden, the plants will flower vigorously, then self-sow and reappear the following year. Pollinators: bees, butterflies.

Plant details

  • Common name: Hoary Aster
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 18-24 in. x 18 in.
  • Native to: Idaho