In my experience, fertilizing after overseeding can be beneficial for the health and growth of the new grass. However, it is important to wait until the grass is dry before mowing and applying any fertilizer. This allows the grass to fully absorb the nutrients without any interference from moisture.
After about six weeks of sowing the seed, it is a good time to fertilize the lawn. I recommend using a quick-release nitrogen fertilizer, applying about a pound for every thousand square feet of lawn space. This helps to provide the necessary nutrients for the grass to thrive and establish strong roots.
When applying the fertilizer, it is important to follow the instructions on the package and evenly distribute it across the lawn. This can be done by using a spreader or by hand if the area is small. It is also helpful to water the lawn after applying the fertilizer, as this helps to activate the nutrients and ensure they are absorbed by the grass.
I have found that fertilizing after overseeding not only promotes the growth of new grass, but also helps to maintain the overall health and appearance of the lawn. The additional nutrients provided by the fertilizer can help the grass to grow thicker and greener, filling in any sparse areas and creating a more uniform and lush lawn.
However, it is important to note that fertilizing alone is not enough to ensure a healthy lawn. Regular watering, proper mowing, and adequate sunlight are also essential for the grass to thrive. It is also important to avoid over-fertilizing, as this can lead to excessive growth and potentially harm the grass.
Fertilizing after overseeding can be beneficial for the health and growth of the new grass. Waiting until the grass is dry before mowing and applying fertilizer, and using a quick-release nitrogen fertilizer at the recommended rate, can help promote the establishment of strong roots and a lush, uniform lawn. However, it is important to remember that fertilizing is just one aspect of lawn maintenance, and proper watering, mowing, and sunlight are also essential for a healthy lawn.