Silphium trifoliatum (Whorled Rosinweed) bloom
Silphium trifoliatum (Whorled Rosinweed) whole plant/field shotSilphium trifoliatum (Whorled Rosinweed) seed

Silphium trifoliatum
Whorled Rosinweed

A clump-forming species; the seeds provide food for birds; a source of nectar for butterflies.

General Product Information:

Item Number: SILTRI01
Species Type: Native
Product Categories:
, ,
Classification: Herbaceous Perennial
Habitat: Roadsides, dry fields, meadows.
Bloom Period: July to September
Flower Color: Yellow
Foliage Color: Green
Height: Up to 9.8 Ft
Pollinator Value: High

Indicator Regions (view map & key):

Northcentral & Northeast: NI
Midwest: NI
Eastern Mountains and Piedmont: NI
Atlantic and Gulf Coastal Plain: NI


Seed Information:

Seeding Rate: When used as part of a mix, ensure that the mix consists of not less than 0.5% and not more than 1.0% of the total.
Truax Seedbox: Fluffy



Price: $118.80/lb

This species is included in the following Ernst Seed Mixes

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