Starry Rosinweed (Silphium asteriscus) in the Silphiums Database

General Plant Information (Edit)
Plant Habit: Herb/Forb
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Minimum cold hardiness: Zone 7a -17.8 °C (0 °F) to -15 °C (5 °F)
Maximum recommended zone: Zone 10b
Plant Height: 24 - 60 inches
Plant Spread: 12 - 24 inches
Leaves: Fragrant
Other: Hairy
Fruit: Edible to birds
Flowers: Showy
Flower Color: Yellow
Bloom Size: 1"-2"
Flower Time: Spring
Late spring or early summer
Late summer or early fall
Underground structures: Taproot
Suitable Locations: Xeriscapic
Uses: Will Naturalize
Edible Parts: Fruit
Wildlife Attractant: Bees
Propagation: Seeds: Stratify seeds

Growing in the butterfly garden at the Museum of Science and Indu

Photo gallery:

Discussion Threads about this plant
Thread Title Last Reply Replies
What are these seeds? by IJsbrandtGA Oct 30, 2017 12:31 PM 8
Wildflower ID by upat5 Sep 16, 2016 7:54 PM 14
My mystery plant no. 2 by IJsbrandtGA Oct 27, 2015 1:24 PM 2
What is this pretty wild flower? by IJsbrandtGA Sep 10, 2015 3:30 PM 7
yellow daisy/sunflowerlike late summer by leosdad Oct 13, 2013 3:52 PM 20

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