How Long Does Slow Release Fertilizer Take to Work

How Long Does Slow Release Fertilizers Take to Work? Slow-release lawn fertilizer is gradually broken down into available nitrogen by microorganisms and takes three to ten weeks to improve your lawn. Some of them keep working for a couple of months or even a full year after application.

How long does it take for slow release fertilizer to dissolve?

Organic slow release fertilizer takes two weeks or more to decompose into the soil. Maybe a better question to ask is how long does it last in the soil? An organic, granular fertilizer may provide nutrients to your lawn for anywhere from three months to 10 years after application.

How often should I apply slow release fertilizer?

“With slow-release fertilizers, you can feed your lawn every six to eight weeks, depending on your watering schedule, instead of every four weeks,” Turnbull says. That saves you both time and money. He recommends a slow-release that contains nitrogen, but not too much.