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Asteraceae
Silphium Species, Roughstem Rosinweed, Starry Rosinweed
Silphiumasteriscus var. dentatum
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Family
Asteraceae
(ass-ter-AY-see-ee)
Info
Genus
Silphium
(SIL-phee-um)
Info
Synonym
Silphium angustum
Silphium dentatum
Silphium elliottii
Silphium incisum
Silphium nodum
Sun Exposure
Unknown - Tell us
Foliage
Unknown - Tell us
Height
36-48 in. (90-120 cm)
Spacing
24-36 in. (60-90 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
Danger
Unknown - Tell us
Bloom Color
Bright Yellow
Bloom Time
Mid Summer
Other Details
Category
Perennials
Water Requirements
Unknown - Tell us
Foliage Color
Unknown - Tell us
Where to Grow
Unknown - Tell us
Bloom Characteristics
Unknown - Tell us
Bloom Size
Unknown - Tell us
Other details
Unknown - Tell us
Soil pH requirements
Unknown - Tell us
Patent Information
Unknown - Tell us
Propagation Methods
Unknown - Tell us
Seed Collecting
Unknown - Tell us
Regional
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