Native Plant Database

Header Photo: Mervin Wallace

Cup Plant

Silphium perfoliatum
Plant Type: Herbaceous Perennials
Native Environment: Prairie, Wetland, Stream Edge
Season of Interest: Late (July - frost)
Main Color: Yellow
Fall Color:
Hardy From Zone:
Hardy To Zone:

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Hardiness Zones

Midwest map of zones 5 (north), 6, and 7 (south)

as defined by the USDA Plant Hardiness Zone Map; (hardiness zones are not recorded for all Grow Native! plants)
Sun Exposure 
Full Sun, Medium Sun/Average Shade
Soil
Moisture
Dry, Moderate, High, Wet
Nature Attracting
Wildlife Benefit
Food/Birds, Butterfly / Moth Nectar
Animal
Resistance
Size

Height:

7 to
10
feet

Spread:

3 to
5
feet
Size
Height: 7 to
10
feet
Spread: 3 to
5
feet
Size
Height: 7 to
10
feet
Spread: 3 to
5
feet
Typical Landscape Use
This is a large bold plant that brings form and texture to the landscape. Use as a focal point in perennial gardens, native plant gardens and in prairies and moist areas.
Establishment and Care Instructions
Grow in full sun. Adaptable and highly aggressive, clump-forming.
Special Features
Special Usage
Basic Description

This plant is distinguished from other Silphiums by its square stems and pairs of cup-forming leaves that hold water. Soft yellow flowers grow 3 in. in diameter with darker yellow center disks. Plants bloom in summer at the top of stout stems.

Where Should I Start?

Check out the Grow Native! Committee’s Top Ten picks of native plants for a particular purpose.

What’s the Next Step?

Picked out your plants? View our Resource Guide of garden centers, seed sources, landscapers, education resources, and more!

Where Can I Find This Plant in Nature?

Learn about the Native Environment(s) inhabited by the plants in this database.

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