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Helianthus Species, Pineland Sunflower, Rayless Sunflower, Stiff Sunflower

Helianthusradula

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Family

Asteraceae (ass-ter-AY-see-ee)

Info

Genus

Helianthus (hee-lee-AN-thus)

Info

Species

radula (RAD-yoo-luh)

Info

Synonym

Centrocarpha radula

Helianthus apetalus

Helianthus atrorubens subsp. radula

Sun Exposure

Foliage

Height

Spacing

Hardiness

USDA Zone 8a: to -12.2 °C (10 °F)

USDA Zone 8b: to -9.4 °C (15 °F)

USDA Zone 9a: to -6.6 °C (20 °F)

USDA Zone 9b: to -3.8 °C (25 °F)

USDA Zone 10a: to -1.1 °C (30 °F)

USDA Zone 10b: to 1.7 °C (35 °F)

Danger

Unknown - Tell us

Bloom Color

Unknown - Tell us

Bloom Time

Unknown - Tell us

Other Details

Gardener's Notes:

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positive

neutral

negative

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Helianthus Species, Pineland Sunflower, Rayless Sunflower, Stiff Sunflower

Helianthusradula

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