Apply lawn fertilizer in early spring once between February and April, when the grass starts to turn green and begins to grow actively (approximately when the grass needs to be mowed for the first time). As mentioned above, warm-season grasses can be fertilized in early summer before the onset of high temperatures. In addition, a second round of fertilizer should be applied in late summer, as the heat begins to dissipate, preparing you for the coming colder months. Specialized slow-release granulated fertilizers can be used to keep your grass warm throughout the season without the need to reapply them.
Fertilizing your lawn in fall or spring depends on the climate and the type of grass in your garden. Fertilizer can be a valuable tool for maintaining a healthy, dense and good-looking lawn, but it can also cause environmental problems if not used responsibly. Lawn fertilizer is like grass food, providing it with the nutrients it needs to grow and maintain its green, healthy glow. And what complicates the problem is that if lawn fertilizer isn't applied correctly, it can actually cause more harm than good.
You'll also want to water your lawn one or three days before fertilization and plan to avoid rain depending on the weather forecast or use a sprayer for a few days afterward. According to Scotts, you should apply lawn fertilizer between February and April, when the grass starts to turn green and starts to grow actively. You'll also want to fertilize your lawn in late spring or early summer, just before the season's high temperatures hit. These compact spreaders are particularly useful for fertilizing narrow side patios and grassy areas along fence lines, around trees and behind garages and sheds.
Most fertilizers need one or two thorough watering to soak into the soil, and letting the fertilizer sit on the grass without watering it could burn. Here are some general tips on fertilization to help you get the most out of your lawn care program and give your lawn an extra boost. Warm-season grass also benefits from spring fertilization, since spring and summer are when it enters its peak growing season and requires more nutrients. Apply lawn fertilizer in early spring, when the lawn begins to grow actively, and follow up with additional fertilizer in late spring, summer and fall.
Most people fertilize their cold-season grass abundantly in the fall to recharge the soil after summer and prepare the grass for its dormant period during the winter. Feeding your lawn with a regular dose of fertilizer helps it stay healthy, strong and green all summer long so you can enjoy it as much as possible. While it's cheaper to fertilize grass yourself, it's also easier to end up with a less vibrant lawn if you don't know what you're doing. Sunday Lawn Care is a great option if you want a team of lawn experts to make a custom fertilizer designed explicitly for your lawn.