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Maximilian's Sunflower

Helianthus maximiliani

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Category
Forb / Wildflower
Sun
Full to Partial
Soil moisture
Medium-Wet to Medium-Dry
Bloom time
Aug–Sep
Bloom color
Yellow
Notes
Aggressive, Rhizomatous

About Maximilian's Sunflower

Maximilian's Sunflower is a show-stopping native perennial known for its incredible floral display and high value to both livestock and wildlife. Towering between 3 and 10 feet tall, this sunflower produces a profusion of 2-to-3-inch wide yellow blooms tightly packed along the upper portion of its stems. Its long, narrow, grayish-green leaves often fold along the midrib, giving the plant a unique texture even before the August-to-October bloom period. Native to the dry to medium prairies of central North America, it is exceptionally drought-tolerant and adaptable to various soil types, including clay and sandy loams. This species is a top choice for wildlife enthusiasts, as its heavy seed crop provides essential winter food for birds, and its thicket-forming habit offers excellent cover. Best grown in full sun, it spreads steadily via rhizomes to create a spectacular late-season focal point. Germination is most successful after 30 days of cold-moist stratification (C30).

Native range

Native to 37 states:

AlabamaArkansasCaliforniaColoradoConnecticutIowaIdahoIllinoisIndianaKansasKentuckyMassachusettsMarylandMaineMichiganMinnesotaMissouriMississippiMontanaNorth CarolinaNorth DakotaNebraskaNew JerseyNew MexicoNew YorkOhioOklahomaPennsylvaniaSouth CarolinaSouth DakotaTennesseeTexasVirginiaWashingtonWisconsinWest VirginiaWyoming

County range map

BONAP county-level native range map for Helianthus maximiliani

Range map courtesy of BONAP (Biota of North America Program).

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