trefle.io · Taken Jul 23, 2018 by Christophe Lo (cc-by-sa)
Asteraceae
Indian-gum
Silphium perfoliatum
Also known as Greasewood, Saguaro gum, Pinyon pine
Flowering Plants · Native Plants · Native · Tall Perennial · Prairie · Pollinator · Wildflower · Yellow Flowers · Rain Garden · Wildlife · Cup Plant · Asteraceae
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.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Water deeply to saturate the root zone, then allow soil to dry moderately between waterings · Every 7-14 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 4.5–7.5
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 4 ft
- Spread
- 3 ft
- Spacing
- 48 in apart
- Growth rate
- Fast
- Root depth
- Medium
- Flowers
- Yes
- Foliage
- Green · Coarse
Ecology & origin
Where it belongs and what it brings
- Native to
- Alabama, Arkansas, Austria, Belarus, Belgium, Bulgaria, Connecticut, France, Germany, Illinois, Indiana, Iowa, Italy, Kansas, Kentucky, Kirgizstan, Krym, Louisiana, Masachusettes, Michigan
- Attracts
- Bees, Butterflies, Birds
Sources: trefle
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