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Hypericum calycinum

St. John's wort

Native to Southern Europe, southwestern Asia

Allan Armitage calls the species "one of the finest ground covers available" for good reason.  Excellent on slopes, in mass, or individually.  Drought, dry soil tolerant, it spreads quickly via underground stems to be a perfect erosion control.


12-18 in


18-24 in


24 in

USDA Hardiness Zone:

5 - 9

Bloom Color:

Bright Yellow

Hypericum calycinum Characteristics

Attracts Wildlife

  • Butterflies
  • Pollinators


  • Full Sun to Partial Shade


  • Rock Garden
  • Ground Cover
  • Drought Tolerant

Flowering Months

  • August
  • July

Foliage Color

  • Green

Season of Interest (Foliage)

  • Fall
  • Summer
  • Spring

Soil Moisture Preference

  • Dry to Moist