Sandhill Black-eyed Susan Rudbeckia hirta is excellent for hot dry sites with poor soil. It is a perennial that reseeds. It grows to 1-2 feet high and blooms May - Oct.  Planting method suggests to thin turf, broadcast seeds over area, rake or drag to make contact with soil. Water occasionally until sprouted. Net weight: 15mg. Packet will seed 100 sq ft. Sow in fall for summer blooms. North Florida ecotype.