Silphium perfoliatum

Cup Plant

Yellow flowers that attract bees and parasitic wasps on branches up to 10′. Pairs of coarse-toothed leaves meet at and surround the square stem, forming a cup or reservoir that holds water, attracting birds and insects. Prefers moist to wet soils.

  • Height: 6' – 8'
  • Width: 24" – 36"
  • Soil Conditions: Moist/Well Drained
  • Flower Color: Yellow
  • Bloom Time: July, August, September
  • Hardiness Zone: 3 To 7
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  • Plant Characteristics

  • Attributes

    • Fall Color
  • Attracts Wildlife

    • Attracts Wildlife
    • Attracts Butterflies
  • Plant Habit

    • Upright
  • Light Conditions

    • Sun
  • Native Plant Community

    • Mesis Prairie
  • Flower Color

    • Yellow
  • Flower Hue

    • Light
  • Flower Type

    • Head
  • Flower Height

    • 6' to 8'
  • Foliage Color

    • Green
  • Leaf Texture

    • Coarse
  • Flower Form

    • Single
  • Flower Size

    • 2"
  • Soil Moisture

    • Moist/Well Drained
  • Prune Time

    • Jan/Feb/March
  • Growth Rate

    • Fast
  • Origin

    • 90 Miles From Mg