Plant Growth Regulators sprayed on the lawn will slow the growth of labelled turf species by up to 50% for up to four weeks. This can be important for those who are seeking a reduction in clipping collection or mowing frequency. PGRs are gaining attention for reducing vertical height and the need for regular and frequent use of mowers, and for tightening swards and improving health.
Grass growth requires a substantial amount of energy, especially early in the season during the rapid growth phase of cool-season varieties. As the grass enters the stresses of summer, energy reserves can be used up faster. Grass energy can be kept in reserve by slowing grass growth at least a month before the peak summer stress period begins. The energy stays in the roots instead of being used for growth, stalk and seed production. As a result, the grass will be able to handle stress and disease pressures better.
A plant growth regulator sprayed around the base of trees, along sidewalks and driveway edges, along planter edges etc will slow grass and runner growth. This can be especially helpful for warm-season grasses that spread by the production of stolons. Stolons are the above-ground runners that readily challenge any boundary or border. Although they will not prevent the production of stolons, they can greatly slow them down.
Application rates 15-30ml in 4-5L of water per 100m2.