Growth Retardant

A chemical used to limit, slow and restrict plant growth on a temporary basis. Growth retardants were used in the 1980s and 90s primarily on difficult to mow areas, such as embankments, cemeteries where some discolouration following application might have occurred and subsequent weed growth became more pronounced, as weeds were less affected by the applied chemical. Turf cut at 25mm or below was not typically recommended for treatment with a growth retardant, with an example being Maleic Hydrazide. However, during the 2000s more improved substances became available which acted as a Growth Regulator and these were able to be applied to fine turf situations, such as golf greens, and these are now routinely applied in many cases.