Green Maker from fert-lome really helps green up your lawn! This premium lawn fertilizer, containing slow-release nitrogen, is designed for lawns and trees planted in alkaline soils. Added iron also turns lawn grasses a deeper green color. 21 lb. bag.

When should it be used? Apply every 4 to 6 weeks during the growing season. Water in well.
Where should it be used? On lawns and around trees with alkaline soils. 
What is the coverage area? For cool season lawns, apply one bag per 10,800 sq. ft. of lawn. For warm season lawns, apply one bag per 7,200 sq. ft. of lawn. For trees, apply .75 to 1 pound per each one inch of tree diameter. 
How is it applied? Apply using a drop or broadcase spreader. 
What is the active ingredient? Nitrogen, potash, sulfur, boron, copper, iron, manganese, zinc. 
What is the fertilizer content? 18 - 0 - 6 (18 nitrogen - 0 phosphorus - 6 potassium).  
Is it safe for pets? No.