The answer to 'aeration turning brown' is that brown or discolored grass after aeration is a common issue, often caused by a combination of factors. This can be a sign that the aeration process has damaged the grass or that the soil conditions are not ideal for healthy growth.
Some common causes of brown grass after aeration include: overaeration, compacted soil, drought stress, nutrient deficiencies, or fungal diseases. In most cases, the discoloration is temporary and the grass will recover, but homeowners should address the underlying issues to prevent long-term damage.