Silphium perfoliatum, Cup Plant



S. perfoliatum makes a beautiful addition to any garden or restoration project. They are attractive to bees and butterflies. As the name denotes, the leaves are perfoliated, meaning they attach directly to the stem of the plant. The translation is leaves that are pierced. As a result of this structural formation, the leaves form a cup that holds water. We have seen numerous insects drinking from these pools of water!

  • Listing ID: 3952
  • Soil Moisture: 1-5 (dry to wet): 2-3
  • Stratification: 60 days cold moist stratification required
  • Bloom Time: July-August
  • Duration: Perennial
  • Sunlight Exposure: Partial shade to full sun
  • Family: Asteraceae (Aster)
  • Latin Name: Silphium perfoliatum
  • Common Name: Cup Plant
  • Eco-Region: 251