Plant Calculator

Enter the approximate length and width of the area you will be planting and click 'Calculate' to determine how many Hibiscus syriacus 'Amplissimus' you will need.

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

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

Hibiscus syriacus 'Amplissimus'

Double Red Rose of Sharon

  • Upright deciduous shrub
  • Rose-red double flowers.
  • Drought tolerant.
  • Attracts butterflies and birds.

  • Category: Shrubs
  • Hardiness Zone: 5-9
  • Height: 8-10 ft
  • Spread: 4-6 ft
  • Bloom Color: Red

Double Red Rose-of-Sharon