Plant Calculator

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

Approx. Length (ft):
Approx. Width (ft):

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

Summerific®

Hibiscus 'Holy Grail'

Rose Mallow

  • Huge 7" ruffled flowers in vivid colors
  • Densely compact, shrub-like habit
  • Attractive bright green foliage

Proven Winners
  • Category: Perennials
  • Patent: PPAF
  • Breeder: Proven Winners
  • Hardiness Zone: 4-9
  • Height: 48-52 in
  • Spread: 5-6 ft
  • Spacing: 5-6 ft
  • Bloom Color: Red
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Critter Resistance
Deer Resistant
Exposure
Full Sun
Partial Sun
Foliage Color
Green
Soil Moisture
Average Water
Habit
Upright
Season of Interest (Flowering)
Fall
Summer