Hypericum kalmianum

Kalm's St. Johnswort

Low shrub with bright yellow flowers in small clusters at ends of 4-sided branches; bark papery, peeling when older.

  • Height: 24" – 36"
  • Width: 24" – 36"
  • Soil Conditions: Moist/Well Drained
  • Flower Color: Yellow
  • Bloom Time: July
  • Hardiness Zone: 4 To 7
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  • Plant Characteristics

  • Attracts Wildlife

    • Attracts Pollinators
  • Plant Habit

    • Rounded
  • Light Conditions

    • Sun to Part Shade
  • Native Plant Community

    • Mesis Prairie
  • Flower Color

    • Yellow
  • Flower Hue

    • Medium
  • Flower Type

    • Cyme
  • Flower Height

    • 24" to 36"
  • Foliage Color

    • Green
  • Leaf Texture

    • Fine
  • Flower Form

    • Single
  • Flower Size

    • 1"
  • Soil Moisture

    • Moist/Well Drained
  • Prune Time

    • Jan/Feb/March
  • Growth Rate

    • Slow
  • Origin

    • 90 Miles From Mg