The answer to 'seeding yellowing' is that there are several common causes for new grass seed turning yellow, including improper soil preparation, incorrect seeding depth, drought stress, and nutrient deficiencies. Symptoms may include patchy, discolored grass that fails to thrive. Solutions can include aerating the soil, adjusting seeding depth, providing adequate water, and applying a balanced lawn fertilizer.
If the yellowing persists or covers a large area, it's best to consult a professional landscaper who can diagnose the underlying issue and recommend the appropriate treatment. DIY solutions may work for minor cases, but more serious problems often require the expertise of an experienced landscaper.