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Cup Plant

Original price was: $5.00.Current price is: $3.00.

Yellow wildflowers that attract many pollinators. Approx 75 seeds per packet.

4 in stock


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Cup Plant (Silphium perfoliatum) is a native perennial with a multitude of golden-yellow blossoms named for the cup-like structures formed by its fused leaves.

  • Growing 6-8 feet tall, it towers over most other prairie flowers.
  • Its many flowers attract hummingbirds and pollinators with sweet nectar and pollen.
  • The rain-filled cups offer a refreshing drink to birds during the warm summer months.
  • This plan is deer resistant and tends to form dense colonies

About PLS (Pure Live Seed)
Pure Air Natives tests all harvested seed for purity, germination, noxious weeds (state restricted), the dormancy. We only sell purest quality live seed that is going to germinate. (3rd Party Lab Tested)

Cup Plant is a striking garden plant with large yellow flowers which appear in summer (July-Sept). Also known as Rosin-weed, this low maintenance perennial thrives in moist soil and full to partial sun conditions. It is native to hardiness zones 4-8.

Seed Details

Weight 0.025 lbs
Dimensions 3.5 × 0.1 × 2.25 in

Seed Packet

Bloom Color

Bright Yellow

Approx Seed Count



Seed germinates after cold-moist stratification.

Sun Exposure

Full, Partial

Moisture Exposure

Medium to Medium Wet


6-8 Feet

Plant Spacing

2-4 Feet


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