Lawn Food: 0-0-25 High Potassium Fertilizer (2.5 Gallon)0 0 25 Lawn Food is a high potash lawn fertilizer. This grass fertilizer not only works well alone, but it can also enhance and supplement your lawn fertilizer schedule. Great for any lawn and any grass type. 0 0 25 liquid potassium fertilizer is recommended to apply before the high heat of summer and prior to winter freeze in fall for cool season lawns. For warm season grasses, apply prior to winter freeze or before drought conditions set in during