Doni from Paramus, Nj writes
Will this product help keep hydrangeas from overgrowing?
Atrimmec Plant Growth Regulator (PGR) is labeled for a wide variety of ornamentals but does not specifically mention Hydrangeas on the label. We recommmend contacting your local extension office for assistance in a choosing a Plant Growth Regulator that is successful in your area.
Answer last updated on: 10/10/2016