The basic idea behind companion planting is both simple and sensible: many plants grow better near some companions than they do near others or when alone. By itself it will not work miracles, but applied in a well-maintained garden, it can produce startling results. It can drastically improve the use of space, reduce the number of weeds and garden pests, and provide protection from heat, wind, and even the crushing weight of snow. In the vegetable garden, all this adds up to the best thing of all: increased yield.
Most people think of companion planting in connection with vegetable gardens, but it can also be used when flower gardening and in full-scale fields. Some of the most familiar examples come from farming, where it’s a long-standing practice to sow vetch or some other legume in the fall after the harvest. This cover crop provides erosion control through storms, and supplies both nitrogen and organic material to the soil when it is plowed under in spring. (more…)