Description
Scientific name: Silphium perfoliatum
Range: Michigan and Wisconsin
Light: Full Sun, Partial Sun
Soil: Rich Loam, Sandy Loam
Moisture: Medium-Wet, Medium
Benefits: Pollinators, Bees, Butterflies, Birds, Hummingbirds, Deer Resistant
Height: 6–10′
Blooms: Jul, Aug, Sep
Zones: 4, 5, 6, 7, 8
Color: Yellow
Spacing: 2′ to 4′
Root: Deep Fibrous
Fair warning: Cup Plant is a very tall plant that establishes well in average garden soil or heavier, wet soils and can reseed liberally in the right conditions. Undeterred? Consider this: Cup Plants are among the best wildflowers for attracting birds and pollinators. The cup formed where the leaves attach to the stems provides drinking water for all kinds of teeny creatures. And boy, does this plant make a bold statement as it matures.
With flower heads averaging three inches across, Cup Plant is wonderful along a fence for privacy and at the back of a native garden.
