Q: I didn’t get around to fertilizing my lawn earlier this fall. Is it too late to put down fertilizer now? Should I wait until spring?
A: November 15 is the cutoff date for Maryland homeowners to fertilize their lawns in the fall. According to Maryland’s Fertilizer Use Act that went into effect in 2013, you may not apply lawn fertilizer between November 15 and March 1. The law also prohibits lawn fertilizer applications within 10 to 15 feet of waterways. These restrictions are intended to help protect the Chesapeake Bay from excess nutrient runoff.
See our Turfgrass Maintenance Calendars for Maryland Lawns to find the maximum allowable rate of fertilizer for your type of lawn. If you do miss the November 15 cutoff date, you can apply fertilizer next spring in late May or early June. (See the Optional Turf Applications schedule in the above-referenced publication.)
Healthy lawns established about ten years or more may only need one nitrogen application per year. Learn more about Maryland’s fertilizer use law.
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