Plants get the nutrients they need from the soil in which they grow. Sometimes soils cannot provide all the nutrients needed, and that is when gardeners have to step in and apply fertilizers. Many types of fertilizers are available from local garden centers, including organic and synthetic blends. The type of fertilizer that you need to apply depends on which nutrients are already in your soil and what you are trying to grow.
Though more expensive, slow release fertilizers give better results in sandy soils because they do not leach out of the soil.Slow release fertilizers include synthetic, time release products (left) and organic fertilizers (right).