On the other hand, natural fertilizers have many advantages, such as:Most fertilizers are used to enhance the quality of the soil and thus feed your plants through their roots, but some can also feed your plants through their leaves. They avoid the common "feast-or-famine" syndrome that occurs when fast-release fertilizers are applied inconsistently. Depending upon the formulation, the spherical gray pellets release nutrients for up to a year at 77oF. Below are a few situations or problems along with the fertilizers that can help improve or fix them.Below is a list of green fertilizers along with their main characteristics.For green fertilizers that are safe and sure to give your plants a boost, and that you can make at home, see the Compost, although not a fertilizer as such, can be greatly beneficial to your lawn and plants. Superfly Bonsai Slow Release Bonsai Fertilizer Our fertilizer will give your bonsai an immediate boost and then maintain feeding over the course of 1-2 months. The bonsai fertilizer pellets from 9GreenBox.com have a quality formula for a healthy growth of the plant.