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liveroof@epicplants.com

Silphium 
perfoliatum
Silphium  perfoliatum

Cup Plant
Notable features:
This tall North American prairie native derives its common name from the fact that its leaves attach to the stem in a cup-like arrangement, providing wildlife with morning moisture. It has yellow, Sunflower-like flowers.

Height: 200 cm (80")
Spacing: 90 cm (36")
Location: full sun
Flowering Time: July-September
Hardy zone: 3-7

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