Marathon sod is a premium choice for Southern California lawns, but keeping it vibrant requires the right nutrients. Choosing a dedicated marathon grass fertilizer ensures your lawn receives the specific balance of nitrogen, phosphorus, and potassium it needs to thrive.

For the best results, apply your marathon grass fertilizer during the active growing seasons in spring and fall. Standard blends like a 15-15-15 starter or a winterizer formula help establish deep roots and maintain that deep, rich green color year-round. Consistent watering after application activates the formula, preventing nitrogen burn and ensuring a dense, resilient lawn.