Cup Plant (Silphium perfoliatum) [SILL-fee-um per-fo-lee-AY-tum]

Other Names Silphium perfoliatum 1 Gal., Silphium perfoliatum (NGN)
Family Asteraceae
Why Like Cup Plant (Silphium perfoliatum) is one of the biggest plants you'll see in Crow Island Woods which isn't a tree. The seeds are enjoyed by a variety of birds.
Description
Plant Data
I am a... Deciduous Perennial
Where to Find It At the end of the season, Cup Plant is impossible to miss in the wetland at the north end of the property.
How to Recognize It By the end of summer, Cup Plant 2-3" yellow flowers on stems with very large leaves can tower nearly 10' above ground.
Why to Like Cup Plant (Silphium perfoliatum) is one of the biggest plants you'll see in Crow Island Woods which isn't a tree. The seeds are enjoyed by a variety of birds.
Mature Size 4 - 8 feet tall. 12 - 36 inches wide.
Sun Exposure Full Sun - Full Sun
Moisture Tolerance - Wet:
Zones 3a - 9b
Tags Illinois Native
Bloom Period July to September
Flower Color Yellow
Animals That Use It

Seeds:

 
Data Sheets
   In the Landscape Focused on the Plant Leaves Flowers Fruit Fall Leaf Winter Form
 
 

More Photos: Google Image Search & Flickr

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