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Helianthus maximilianii

Common Name(s): Maximilian sunflower
Family: Asteraceae
Growth Habit: Perennial
Growing Days: 145
Precipitation: 18 to 28 (in.)
Winter Minimum: -13° (F)
Soil pH: 6 to 8
Soil Texture/Type: All; sand, loam, clay
Soil Drainage: Well
Photoperiod Response:
Light Intensity:
Requires moist soil. Can be invasive. Good drought, but low salinity tolerance.
Pythium, Rust, Cercospora, Powdery Mildew
Animal Food - birdseed, Environ. - ornamental, Animal Food - forage


Geographical Origin:
Cultivated, Naturalized, North America, USA
Metric Units

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Last Modified: October 17, 2012
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