The Cup Plant (Silphium perfoliatum) is a striking perennial native to North America, known for its towering height of up to 6 feet and distinctive yellow blooms that appear from July to September. This plant features large leaves that form a natural ‘cup’ at the stem, collecting rainwater which attracts a variety of birds and insects. Cup Plant thrives in full to partial sun and prefers medium to wet soil conditions, easily adapting to clay, loam, or sandy soils. Its robust nature makes it ideal for perennial borders or naturalized prairie gardens, though it can spread aggressively. Beyond its beauty, the Cup Plant provides essential ecological benefits, serving as a crucial food source for bees, butterflies, and birds.
- You cannot add "Sweet Joe Pye Weed" to the cart because the product is out of stock.
Cup Plant
Silphium perfoliatum
$6.00
Availability: Only 10 left in stock
Mix-&-Match Plant Pricing
Feel free to mix varieties—the discount applies to the
total number of plants in your cart.
| Single plant | $6.00 |
| Any 3 plants | $15.00 ($5 ea.) |
| 20 + plants (cart total) | $4.00 per plant |
