Starry Rosinweed (Silphium asteriscus var. asteriscus) in the Silphiums Database

Botanical names:
Silphium asteriscus var. asteriscus Accepted
Silphium asperrimum Synonym
Silphium laeve Synonym

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Water Preferences: Mesic
Minimum cold hardiness: Zone 5a -28.9 °C (-20 °F) to -26.1 °C (-15 °F)
Maximum recommended zone: Zone 10b
Plant Height: 24 to 72 inches
Plant Spread: 12 to 24 inches
Flowers: Showy
Flower Color: Yellow
Bloom Size: 1"-2"
2"-3"
Flower Time: Summer
Late summer or early fall
Fall
Underground structures: Taproot
Uses: Will Naturalize
Wildlife Attractant: Bees
Birds
Butterflies
Resistances: Humidity tolerant
Pollinators: Various insects

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