Giant Sunflower

Helianthus giganteus L.

Aster family

Plant Type
Forb/herb
Life Cycle
Perennial
Mature Height
12.0 feet
Flower Color
Yellow
Bloom Time
Early Summer, Mid Summer, Late Summer, Fall

Growing Conditions

Shade Tolerance Intolerant

Ecosystem & Wildlife

Pollinators Native Bees; Bombus; Honey Bees; Beetles, Wasps, Flies; Moths; Butterflies; Monarchs; Larval Host (Moth)
Larval Host Cremastobombycia ignota, Eucosma sombreana, Gnorimoschema ambrosiaeella, Papaipema maritima, Papaipema necopina

Native Range

  • USA:  Connecticut, Delaware, District of Columbia, Georgia, Illinois, Indiana, Iowa, Kansas, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Mississippi, New Jersey, New York, North Carolina, Ohio, Pennsylvania, South Carolina, Tennessee, Vermont, Virginia, West Virginia, Wisconsin
  • CAN:  New Brunswick, Newfoundland, Nova Scotia, Ontario, Québec

Regional Native Status: L48 (N), CAN (N)

State-level native status is based on data available through Plants of the World Online. Regional Native Status comes from the USDA Plants Database. For more detailed native status information, please refer to BONAP.

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