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Helianthus Species, Cheerful Sunflower, Perennial Sunflower, Showy Sunflower

Helianthuslaetiflorus

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Family

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

Info

Genus

Helianthus (hee-lee-AN-thus)

Info

Species

laetiflorus (lay-tee-FLOR-us)

Info

Synonym

Helianthus x laetiflorus

Helianthus severus

Helianthus superbus

Sun Exposure

Foliage

Height

Spacing

Hardiness

USDA Zone 4a: to -34.4 °C (-30 °F)

USDA Zone 4b: to -31.6 °C (-25 °F)

USDA Zone 5a: to -28.8 °C (-20 °F)

USDA Zone 5b: to -26.1 °C (-15 °F)

USDA Zone 6a: to -23.3 °C (-10 °F)

USDA Zone 6b: to -20.5 °C (-5 °F)

USDA Zone 7a: to -17.7 °C (0 °F)

USDA Zone 7b: to -14.9 °C (5 °F)

USDA Zone 8a: to -12.2 °C (10 °F)

USDA Zone 8b: to -9.4 °C (15 °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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Todd_Boland

St. John's, NL (Zone 5b) | February 2005 | neutral

The flowers are attractive but this sterile hybrid more than makes up for its lack of seed production but producing numerous underground ...Read More

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Helianthus Species, Cheerful Sunflower, Perennial Sunflower, Showy Sunflower

Helianthuslaetiflorus

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