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Silphium Species, Simpson's Rosinweed, Tall Rosinweed

Silphiumasteriscus var. simpsonii

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Family
Asteraceae (ass-ter-AY-see-ee)
Info
Genus
Silphium (SIL-phee-um)
Info
Synonym
Silphium simpsonii
Sun Exposure

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Foliage

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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

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Foliage Color

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Where to Grow

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Bloom Characteristics

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Bloom Size

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Other details

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Soil pH requirements

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Patent Information

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Propagation Methods

Unknown - Tell us

Seed Collecting

Unknown - Tell us

Regional

This plant is said to grow outdoors in the following regions:

Garland, Texas

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