Allelopathy is a biological phenomenon where one plant releases chemicals into the environment that can inhibit the growth of nearby plants. These chemicals, known as allelochemicals, can affect seed germination, root growth, and overall plant health. This interaction can help a plant reduce competition for resources like sunlight, water, and nutrients. Many plants, such as black walnut and eucalyptus, are known for their allelopathic properties. While this strategy can benefit the allelopathic plant, it can also create challenges for gardeners and farmers, as it may limit the types of plants that can grow in proximity to these allelopathic species.