Black eyed Susan (Rudbeckia hirta) Plant Guide

Cleaned seed (Fig. 4) yields range from 20 to 30 lb/acre at the USDA NRCS Jamie L. Whitten Plant Materials Center in Coffeeville, MS (MSPMC). Seed purity varied from 57% to 82% and seed germination ranged from 22% to 90%. ................
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