Pennington Ironite All-Purpose Lawn Fertilizer For All Grasses 10000 sq ftVibrant, deep green foliage is a sign of a vigorous plant. Pale green or yellow foliage can be caused by nutrient deficiencies which can be corrected by the nitrogen, iron and other minerals found in Ironite Mineral Supplement. Use this product to green up your lawn and garden. A deep green lawn without excessive growth Compatible for any time of year and with any type of grass Helps grass use nutrients found naturally in the soil Contains more iron