Springtime is the time that most people fertilize their lawns so that the grass will come out of its winter hibernation strong, full and green. Unfortunately, most commercial lawn fertilizers are full of harmful, toxic chemicals. If you're not keen on allowing your family and pets to walk and roll around on grass that has been treated with toxic fertilizers, you can use natural, non-toxic fertilizers to fertilize and green your lawn.
Use corn meal on your yard. This can be bought at feed or tractor supply stores and comes in large bags, usually 40 to 50 lbs.. While you could use corn meal purchased from a grocery store, you'll be paying a lot more per pound. Sprinkle this on your yard, using approximately 20 lbs. per 1,000 square feet of lawn. Results can be seen in approximately three weeks.
Use corn gluten meal instead of corn meal as a "weed and feed" fertilizer to help make your lawn greener while controlling weeds. Corn gluten meal can also be purchased at feed supply stores and is a bit pricier than regular corn meal. Corn gluten meal typically costs approximately $1 per lb. and is sold in 40-lb. bags. Sprinkle the corn gluten meal at a rate of 10 to 20 lbs. per 1,000 square feet of lawn. Apply 10 lbs. per 1,000 square feet if using it as just a fertilizer, but 20 lbs. per 1,000 square feet is needed if you also require it for weed control, another use for which it is effective.
Use Epsom salts to help increase magnesium levels in your soil, which will lead to greener grass. Follow the directions on the package of Epsom salts, as different brands and concentrations call for different amounts applied to the lawn.