Atrimmec is a systemic plant growth regulator which works by blocking the plant hormones that stimulate growth. Applied as a foliar spray, it is absorbed by the leaves and translocated to the shoot tips where it interrupts apical dominance and temporarily stops shoot elongation. One trimming and one Atrimmec application can last the entire season on many plants. Atrimmec enhances the appearance of ornamentals by promoting branching, giving shrubs and bushes a fuller, more compact uniform shape. It can also replace hard pinching in nurseries and greenhouse florist quality production.