Silphium perfoliatum


In stock

Common Name: Cup Plant

Plant Type: Herbaceous


Light Requirements: sun, part sun

Soil Moisture: mesic

Soil Type: Loam

Height: 3 - 8 ft

Bloom Time: Summer

Flower Colour: yellow

Germination Requirements: Seed will germinate upon being shifted to 70°F after 90 - 140 days of moist, cold stratification at 40°F

Details/Comments: Good nectar plant. Birds enjoy seeds.

Picture Copyright: John Oyston