Winter Wonderlawn 5 lb. Bag of Super Over Seeding Lawn seed mixture is made for overseeding southern lawns in fall and winter. It contains one of the first turf annual ryegrasses along with some perennial ryegrass. It blends nicely and transitions evenly in the spring or summer. With its fast germination and deep green color, this grass seed will give your lawn a lush and vibrant look all winter long.