Answer: After aerating your lawn, soil cores should be left on the lawn surface; they will degrade and will typically dissolve back into the grass in 2-4 weeks. Lawns may be fertilized and seeded immediately following aeration with or without further soil top dressing. If your soil is heavily compacted, you can apply stable, mature compost 1/4 inch deep. Rake the compost over the lawn, filling the aeration holes.
Best wishes with your garden!
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