Should I Fertilize My Lawn After Aerating

September 13, 2022
Pride In Turf

Core aeration for your lawn is important, as it allows vital nutrients, water, sunlight and oxygen to sink in and reach the root system of your lawn.  It promotes a healthy root system, giving you a lush lawn better equipped to defend against unwanted weeds and grasses.  Typically, it is best to dethatch or aerate in the early Fall before the growing season is over.  It is not best to aerate in the Spring as this is when the soil is full of dormant weed seeds ready to grow, especially in areas with warm climates.  Should you fertilize your lawn after aerating?  The answer to that is an emphatic YES!

When to Add Fertilizer After Aerating

After aerating is a good time for overseeding, especially if your lawn is thin and/or patchy. One of the purposes of aerating is to create holes in the turf so the fertilizer makes good soil contact.  The soils can absorb more nutrients, water, oxygen, and room to grow.  It is best to add fertilizer immediately after aerating, or at least within 48 hours of aerating.  Fertilizing after aerating gives the fertilizer the best chance to get down deep into the holes created by aerating.  Fertilizing and overseeding after aerating gives you the best chance for a lush, green lawn as this is when the lawn is more exposed to oxygen. 

Should I Fertilize Before or After Aerating

It is best to always fertilize after aerating.  As stated above, this allows the fertilizer to get down in the soil for the best results.  After fertilizing the lawn, then it is best to seed the lawn (if seeding is needed).  Of course, the lawn should be watered after aerating