A heat mat is an electrically powered mat used in gardening to provide consistent, gentle heat to the underside of seed trays or propagation trays. Heat mats are commonly used to improve seed germination rates by maintaining an optimal soil temperature, particularly in cooler environments. They are especially useful for starting seeds that require warm soil to sprout, such as peppers, tomatoes, and other heat-loving plants. The mat ensures even heating across the tray for uniform growth.
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