How to Grow Cup Plant
Silphium perfoliatum
Your complete guide to growing Cup Plant.
📷 Wikimedia CommonsWhen to Plant Cup Plant
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
Companion Plants for Cup Plant
✓ Good companions
Tolerates wet conditions and provides contrasting flower form
Thrives in similar moist conditions and attracts hummingbirds
Shares similar height and water requirements, creates habitat for butterflies
Provides late-season blooms when cup plant declines, supports migrating butterflies
Similar growing conditions, attracts beneficial pollinators and extends bloom season
Compatible moisture needs and attracts monarch butterflies
Complements cup plant's moisture needs and attracts diverse beneficial insects
Ground cover that thrives in cup plant's partial shade
✗ Keep away from
Invasive shrub that outcompetes native plants and alters soil chemistry
Produces juglone which inhibits growth of many native plants including cup plant
Aggressive spreader that can smother cup plant and other native wildflowers
