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