Just as the name says, this is an all-purpose, Organic plant food that will keep your plants growing & happy throughout the season. Major nutrients as well as calcium, minor nutrients, & some of the beneficial microbes that help keep the soil & plants healthy are released immediately & continue to feed your plants forup to 3 months. It's ideal for seed starting, bedding plants, vegetable gardens, trees, shrubs, & containers. Omri labeled for Organic use.