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Hypericum calycinum

Aaron's Beard (St. John's Wort)

An evergreen ground cover which spreads quickly by underground stems making it a good candidate for erosion control. Rounded, green foliage carries bright golden-yellow blooms.

  • »  Rose-shaped, golden-yellow flowers
  • »  Smooth, oval, green leaves on woody branches
  • »  Good for erosion control
  • »  An evergreen, ground cover in milder winters
  • »  Bloom Time: July to August
  • »  Flower Size: 5-8 cm

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  • Category:Perennials
  • Hardiness Zone:5
  • Height:20-40 cm
  • Spread:45-60 cm
  • Bloom Color: Yellow
Exposure
• Full Sun
Soil Moisture
• Average to Dry Soils
• Well-drained
Growth Rate
• Medium
Flowering Time
• Summer
Habit
• Mounding
• Spreading
Foliage Color
• Green
Landscape uses
• Border/edging
• Ground cover
• Rock garden
Planting instructions
• Container Plants
Growing & Maintenance Tips for Hypericum calycinum

Grows best in an average to sandy, well-drained soil, in full sun and once established tolerates most conditions. The plant can be temperamental in our zone and should be grown in a sheltered location. Spreads by underground stolons and does not have an invasive habit in Ontario. Evergreen in warmer climates, however, in Ontario, H. calycinum will most likely have some tip dieback.