Description | Cup Plant (Silphium perfoliatum) is a tall native prairie plant reaching over 6 feet. The cupped leaves store water and are visited by birds and Hummingbirds. |
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Pronunciation | (SIL-phee-um) |
Plant Type | Wild Flowers |
Hardiness Zone | cold hardy to at least #5 |
Sunlight | full |
Moisture | prefers moist |
Soil & Site | Prefers moist and can be found along streams and moist areas, native to mesic soils |
Flowers | The yellow daisy-like flowers are on tall single scapes (flower stalks). |
Fruit | achene |
Leaves | Green opposite leaves, coarsely toothed, form a water reservoir where they join together at the stem; this is called perfoliate. It is visited by birds and Hummingbirds. |
Stems | square stem |
Dimensions | It gets up to 8 feet and can form thick patches. |
Propagation | moist stratified seed |
Native Site | North American Prairies |
Misc Facts | Prairie Nursery ranks this plant high for wildlife food. |
Notes & Reference | #09-The Prairie Garden (J. Robert Smith with Beatrice Smith), #56-Tall Grass Prairie Wildflowers (Doug Ladd), #224-Prairie Nursery web site (www.prairienursery.com) |