Daminozide Plant Growth Regulator Produce compact of chrysanthemums, azaleas, hydrangeas,poinsettias, and other ornamentals Daminozide Plant Growth Regulator PGR- ... produce more compact(by inhibition of internodal elongation)of chrysanthemums, azaleas, hydrangeas, poinsettias, and other ornamentals. Applied at 0.106-0 ...