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Kidney-leaf Rosinweed Silphium compositum

Other Common Name(s):

Description

Kidney-leaf rosinweed is a native perennial wildflower in the Asteraceae (sunflower) family.  It is found throughout North Carolina, through rarer in coastal areas, on sandy soils and dry long leaf pine forests. Plant it in full sun to partial shade in sandy loamy well-drained soil. This perennial has a large taproot and it self seeds easily. Plant it in a wildflower garden or at the back of a border and enjoy its showy yellow flowers from late spring through early fall. 

See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#yellow flowers#NC native#self-seeding#wildflower garden#border back
 
Cultivars / Varieties:
Tags:
#yellow flowers#NC native#self-seeding#wildflower garden#border back
  • Attributes:
    Genus:
    Silphium
    Species:
    compositum
    Family:
    Asteraceae
    Life Cycle:
    Perennial
    Recommended Propagation Strategy:
    Seed
    Country Or Region Of Origin:
    Southeastern U.S.A.
    Distribution:
    AL, FL , GA, NC , SC, TN , VA, WV
  • Whole Plant Traits:
    Plant Type:
    Herbaceous Perennial
    Native Plant
    Perennial
    Wildflower
  • Cultural Conditions:
    Light:
    Full sun (6 or more hours of direct sunlight a day)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Texture:
    Loam (Silt)
    Sand
    Shallow Rocky
    Soil Drainage:
    Good Drainage
    Occasionally Dry
    Available Space To Plant:
    Less than 12 inches
    12 inches-3 feet
    3 feet-6 feet
    NC Region:
    Coastal
    Mountains
    Piedmont
  • Fruit:
    Fruit Type:
    Achene
  • Flowers:
    Flower Color:
    Gold/Yellow
    Flower Inflorescence:
    Head
    Flower Value To Gardener:
    Long Bloom Season
    Flower Bloom Time:
    Spring
    Summer
    Flower Shape:
    Radial
    Flower Petals:
    7 - 20 petals/rays
    Flower Description:
    8 petaled yellow flowers with center disc flowers that bloom from May-September appear on leafless stalks that can reach 4 to 8 feet tall. Disc flowers have undivided styles.
  • Leaves:
    Leaf Color:
    Green
    Leaf Type:
    Simple
    Leaf Arrangement:
    Alternate
    Leaf Shape:
    Ovate
    Reniform
    Leaf Margin:
    Lobed
    Hairs Present:
    No
    Leaf Length:
    > 6 inches
    Leaf Description:
    Basal leaves are 4"-12" long with lobed margins that vary from ovate to reniform. Toothed leaves can be palmately or pinnately lobed. Midrib can be green or red.
  • Stem:
    Stem Color:
    Brown/Copper
    Red/Burgundy
    Stem Is Aromatic:
    No
    Stem Description:
    Reddish to mottled stems