Primo HG Turf (PGR)

PRIMO® HG Turf Growth Regulator will promote greener, denser, more resilient lawns, reduced height of leaf growth, fewer clippings and therefore less time spent on maintenance. PRIMO® HG is the trusted growth regulator that pre-conditions turf for stress and optimises surface quality and colour. Achieve professional turf quality at home.

PRIMO® HG is a lawn growth regulator which can reduce leaf and stem elongation and speed of growth, leading to reducing mowing frequency, creating a greener lawn and developing more resilient and denser lawns. Recommended applications rates are designed to give approximately a 20 to 50% reduction in clipping yield over a 2 to 6 week period. Growth regulation begins 3 to 5 days after application. The amount of growth regulation achieved will vary between situations due to environmental conditions and lawn management practices. Therefore, application rates will need to be adjusted to match growing conditions, management practices and the amount of growth regulation required in each individual situation. 

Key Features

• Enhanced turf quality and colour with finer, denser growth
• Reduction of excessive leaf growth throughout summer – meaning less 
  mowing plus reduced clipping removal and less potential for scalping
• Redirects the plants energy to the root system – treated turf grows a 
  stronger, deeper and more robust root system, improving the ability 
  of your turf to utilise available water and nutrients
• Pre-conditions your lawn for hot, stressful summers – better heat 
  stress tolerance, less wear and tear, and reduced watering needs
• PRIMO® HG can slow turf leaf growth for up to 4 weeks – so if you  
  are going on holiday, one application prior to leaving means that 
  your lawn doesn’t get out of control while you’re away
• Low application rates of active ingredient
• Backed by Syngenta

Application Rate

• 4ml - 80ml in 10L of water per 100 square metres (with pressure sprayer)
  

Details 

How does PRIMO® HG work?

PRIMO® HG is absorbed through the leaf and works by reducing the elongation (length and size) of stems, stolons and leaves in the above ground parts of the turf plant. The root system is not affected but does benefit from the efficiencies that result from reduction in excessive leaf/ stem growth. PRIMO® HG has no root absorption, therefore targeting the foliage on application is critical for best results. The smaller leaves and shorter internodes on stolons result in much less physical upward growth and thus reduce mowing, clipping removal and plant injury.

Increasing the amount of PRIMO® HG applied will increase the level of regulation applied. Adjust rates to desired level based on turf health, growing conditions, level of wear from use etc. Rates typically start low in spring, increase through summer then reduce into autumn.

PRIMO® HG Label

PRIMO® HG Brochure