Cup Plant (Silphium perfoliatum)

Smiling Sun Gardens

Regular price $6.00

This plant is distinguished from other plants by its square stems and pairs of cup-forming leaves that hold water after a rain. Soft yellow flowers grow 3 in. in diameter with darker yellow center disks. Plants bloom in summer at the top of stout stems.
Culture: Grow in full to medium sun with moist soil.

Native Environment : Wetland, Stream Edge, Prairie
USDA Hardiness Zone: 3 - 9
USDA Symbol: sipe2
Height: 4 to 8 feet
Spread: 1 to 3 feet
Sun Exposure: Full Sun
Color: Soft Yellow
Season of Interest: July to September
Soil Moisture: Dry/Moist/Wet
Soil Description: Wet to mesic soils. Will tolerate clay soil.
Tolerate: Clay Soil, Wet Soil
Wildlife Benefit: Food/Birds, Butterfly Nectar, Rain Gardens, Rainscapes
Nature Attracting: Butterflies, Hummingbirds, Birds, Native Bees, Bumble Bees, Honey Bees
Provides Nesting Materials/Structure for Native Bees: A plant that native bees nest beneath, within, or harvest parts from to construct their nests.

Supports Conservation Biological Control: A plant that attracts predatory or parasitoid insects that prey upon pest insects.