495-003D4 Silphium perfoliatum |
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 Joy Creek Photo Archive (c) all rights reserved |
Silphium perfoliatum is a clump forming perennial with large triangular leaves and tall spikes of terminal open-branched ray flowers of yellow. Summer to early fall. 8 ft. x 3 ft. Yellow flowers Sun Zones 5, 6, 7, 8, 9 |
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20300
NW Watson Road 
Scappoose, OR 97056(503) 543-7474 (503) 543-6933 (FAX) catalogue@joycreek.com |