Indian-gum
Silphium perfoliatum
Cup plant (Indian-gum) is a tall, fast-growing native perennial with large yellow daisy-like flowers that attract a wide range of pollinators and seed-eating birds. Its distinctive cup-formed leaves hold rainwater, providing a drinking source for wildlife, making it a superb addition to naturalized or rain gardens. Give it plenty of space as it can reach 6–8 feet tall, and enjoy its low-maintenance nature once established.
Care Level
Low
Sun
Partial Shade
Water
Moderate
Growth Rate
Fast
Mature Height
12″ – 48″
Soil
loam
Life Cycle
Perennial
Spacing
48″
Watering Schedule
Every 7-14 Days • Water Deeply To Saturate The Root Zone, Then Allow Soil To Dry Moderately Between Waterings
Soil pH
4.5 – 7.5
Temperature
-25° – 95°F
Mature Spread
up to 36″
Root Depth
Medium
Foliage
Coarse
Native to
Attracts
Sources
Data: trefle
Image: trefle.io — Taken Jul 23, 2018 by Christophe Lo (cc-by-sa)
No nurseries currently have this species in stock.