Custom designed lawn patch that organically neutralizes pet urine and conditions your soil, with premium grass seed to patch any bare spots. Keep Spot out of trouble with this comprehensive, rapid-growing, perennial grass seed mixture. This will repair your damaged spots and turn your lawn into the showcase it used to be before your little critter changed things. Dark green grasses flourish with this mixture of gypsum and perennial grasses to quickly regrow your yellow spots into lush green turf.