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cup plant

cup plant

Silphium perfoliatum

perennial☀️ full sun💧💧 moderate waterZone 2a – Zone 9b

A tall native wildflower with distinctive cup-shaped leaves that join at the stem and golden-yellow flowers. Attracts pollinators and adds architectural interest to garden borders.

Overview

Form
Upright
Growth Rate
moderate
Size
4–6′ tall × 2–3′ wide
Dormancy
deciduous

Tolerances & Soil

low

Flood Tolerance

low
Zone 2aZone 9b
1471013
ColderWarmer
Zone range: Zone 2a to Zone 9b

pH Range

4.57.5
7.0
3.556.589
pH range: 4.5 to 7.5

Soil Texture

Coarse, Medium, Fine

Seasonality

Bloom Season

J
F
M
A
M
J
J
A
S
O
N
D

Season of Interest

SummerFall

Succession Role

early successionalmid successional

Native to the United States

Native Range

Eastern North America

Native to: Connecticut, Delaware, Georgia, Illinois, Indiana, Iowa, Kentucky, Maryland, Massachusetts, Michigan, Minnesota, Missouri, North Carolina, New York, Ohio, Pennsylvania, South Carolina, Tennessee, Virginia, West Virginia, Wisconsin

Function & Care

biomass/mulchdynamic accumulatorerosion controlpollinator nectarywildlife benefit

Establishment & Care

Establishment
easy
Maintenance
low
Propagation
seed, division