Primo Maxx Turf Growth Regulator will promote greener, denser, more resilient turf with less growth, fewer clippings and therefore less expensive maintenance. Primo Maxx is the trusted growth regulator that pre-conditions turf for stress and optimises surface quality and colour. Primo Maxx should be applied to actively growing turf, at least 6 hours before or after mowing. Good mowing management leading up to application is required to achieve a good quality turf surface and to obtain the best results.