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Hypericum calycinum

St John's-wort

Hypericum calycinum is a semi-evergreen ground cover, spreading by stolons.  Leaves are green to blue-green, 3" x 1" elongated leaves.  Blooms yellow in early Summer, 2"-3" in diameter.  Cut back late Winter/early Spring to remove brown leaves when winterburned.  South - if evergreen, cut back every 3 years to rejuvenate.  Recommended for moderate to large areas.  Not appropriate for small gardens.  Prefers well drained soil with average watering.  Prefers some shade in zones 7, otherwise thrives in full sun.  Mature height 12"-18", spread 24"

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  • Full Sun to Part Shade
  • Semi-Evergreen
  • Ground cover for medium to large areas
  • Not for small gardens
  • Blooms yellow early Summer
  • Height: 12-18 Inches
  • Spread: 24 Inches
  • Hardiness Zone: 5-9
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Characteristics & Attributes

Critter Resistance
Season of Interest (Flowering)
Foliage Color
Soil Moisture
St John's-wort Hypericum calycinum from Classic Groundcovers