More frequently during the spring fast growing period. Keep the cutting high, at 2.5 to 3.0 inches, which will keep it looking greener and healthier. Proper watering is a function of supplementing what Mother Nature gives us with the hose and sprinkler. Weeds can grow in very dry conditions. Give your grass the ability to compete by watering every 5 to 7 days, and more frequently during hot and dry periods. .
Weeds can grow without fertility.
Grass needs balanced nutrition for growth and the vitality to compete. Without fertility, grasses thin out, and weeds will invariably begin to take hold quickly, to the point of dominating the space for light, soil, and water, over the turf. Nutri-Lawn has been focussing on fertility as the cornerstone of its lawn care programs for the past fifteen year. It has thoroughly proven, that you can keep weeds under control and discourage their entry by a program of proper feeding and Integrated Pest Management. A beautiful, lush, and thick lawn is the best answer for pesticide reduction.