Plant Calculator

Enter the approximate length and width of the area you will be planting and click 'Calculate' to determine how many Rudbeckia subtomentosa 'Henry Eilers' you will need.

Approx. Length (ft):
Approx. Width (ft):
*Distance Between Plants (in):

*Correct and successful spacing is complex and depends on project conditions.

Rudbeckia subtomentosa 'Henry Eilers'

Quilled Sweet Coneflower

  • Unusual yellow gold quilled petals
  • Nice brown button centers
  • Makes a great specimen in the back of the border

  • Category: Perennials
  • Hardiness Zone: 4-8
  • Height: 4-5 ft
  • Spread: 2-3 ft
  • Bloom Color: Yellow
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Attracts Wildlife
Attracts Butterflies
Exposure
Full Sun
Foliage Color
Green
Soil Moisture
Average Water
Attributes
Cut Flower/Foliage
Habit
Upright
Season of Interest (Flowering)
Fall
Summer