Cup Plant

Silphium perfoliatum

  • Bright yellow daisy-like flowers
  • Coarsely-toothed bristly oval green leaves are 20 cm long
  • Leaves are opposite each other and join together at stem to cup water
  • Sturdy central stem is hairless and square
  • Upright, clumping habit
  • Bloom Time: June to August
  • Flower Size: 10 cm

ZONE:
4

COLOUR:
Yellow

HEIGHT:
150-250 cm

SPREAD:
75-90 cm

Currently Unavailable
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Growing and Maintenance Tips:


Easily grown in an average garden soil, it is able to withstand heavier, wetter conditions under certain conditions and may drop some of its lower leaves with continued drought. 

Additional Notes about Cup Plant:


Native to Ontario