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Silphium perfoliatum - Cup Plant

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Item #: SIL05F
  • Seed Envelope   ($3.00)
  • 1/2 Oz.   ($8.50)

Cup Plant is tall erect perennial plant, growing 3 to 8 feet high, on stems that are stout, square in cross-section and smooth and unbranched below the flowers.

Flowers are bright yellow blooming in mid summer. It is adapted to moist soils and full sun situations.

Great plant for birds and pollinators.

Found east of the Rocky mountains to the east coast of the United States and in eastern Canada.


What is Stratification?

Silphium perfoliatum - Cup Plant

Flower Color: Yellow

Height: 3 to 8 Feet

Light Requirements: Full Sun to Partial Shade

Soil Hydrology: Dry to Wet Soils

Bloom Time: July to September

Plant Type: Perennial

Stratification: Cold Moist (CM) 60 Days

Attracts: Birds, Butterflies, Bees, Hummingbirds

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