If you want a great looking yard, sodding can be a great way to transform your outdoor space. With sodding, you get an instantly full and lush lawn instantly. When to Sod One of the great things about sod is that you can install sod year-round, even if the ground outside is frozen. However, the two best times to install sod are during either the fall or the spring. During the fall or spring, the ground tends to be softer and the heat less intense, which means your new grass will not need as much water as it would to take hold in the summer and it would not have to battle frozen ground like it would in the winter.