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Silphium asteriscus

Common Name(s):

Phonetic Spelling
SIL-phee-um as-ter-IS-kus
Description

Rosinweed is a 3 foot tall, herbaceous perennial. The leaves are alternate, sometimes opposite, and are covered by fine hairs. Lemon-yellow flower heads about the size of silver dollars appear in late summer. The name rosinweed comes from the resinous sap which, when dried, was used by Native Americans as a breath-freshening chewing gum. Note that there is a high level of local variability throughout its range.

Seasons of Interest:

Bloom: Late summer; Fruit/Seed/Nut: Fall

 

See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#showy flowers#NC native#goldenrod#herbaceous perennial#native garden#pollinator plant#native wildflower#food source fall#food source nectar#food source pollen#bird friendly#food source hard mast fruit#butterfly friendly#Audubon#wildflower#wildlife friendly
 
Silphium asteriscus
CC0
Silphium asteriscus
Flower James H. Miller CC BY 3.0
Silphium asteriscus
Silphium asteriscus bloom detail Debbie Roos
Cultivars / Varieties:
Tags:
#showy flowers#NC native#goldenrod#herbaceous perennial#native garden#pollinator plant#native wildflower#food source fall#food source nectar#food source pollen#bird friendly#food source hard mast fruit#butterfly friendly#Audubon#wildflower#wildlife friendly
  • Attributes:
    Genus:
    Silphium
    Species:
    asteriscus
    Family:
    Asteraceae
    Life Cycle:
    Perennial
    Recommended Propagation Strategy:
    Seed
    Country Or Region Of Origin:
    Central and eastern North America
    Wildlife Value:
    Flowers are attractive to butterflies and songbirds may eat the seeds.
    Play Value:
    Wildlife Food Source
    Particularly Resistant To (Insects/Diseases/Other Problems):
    Rosinweed is moderately deer resistant.
    Dimensions:
    Height: 2 ft. 0 in. - 5 ft. 0 in.
    Width: 1 ft. 6 in. - 3 ft. 0 in.
  • Whole Plant Traits:
    Plant Type:
    Herbaceous Perennial
    Native Plant
    Wildflower
    Woody Plant Leaf Characteristics:
    Deciduous
    Maintenance:
    Low
  • Cultural Conditions:
    Light:
    Deep shade (Less than 2 hours to no direct sunlight)
    Full sun (6 or more hours of direct sunlight a day)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Drainage:
    Good Drainage
    Moist
    Occasionally Dry
    Available Space To Plant:
    3 feet-6 feet
    6-feet-12 feet
    NC Region:
    Coastal
    Mountains
    Piedmont
    USDA Plant Hardiness Zone:
    4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b
  • Fruit:
    Display/Harvest Time:
    Fall
    Fruit Description:
    Displays from July to October.
  • Flowers:
    Flower Color:
    Gold/Yellow
    Flower Value To Gardener:
    Showy
    Flower Bloom Time:
    Summer
    Flower Description:
    Blooms from June to September
  • Leaves:
    Woody Plant Leaf Characteristics:
    Deciduous
    Leaf Color:
    Green
    Leaf Shape:
    Lanceolate
    Hairs Present:
    No
  • Stem:
    Stem Is Aromatic:
    No
  • Landscape:
    Landscape Theme:
    Butterfly Garden
    Native Garden
    Pollinator Garden
    Attracts:
    Bees
    Butterflies
    Pollinators
    Songbirds
    Resistance To Challenges:
    Deer
    Drought