Dewitt Plant Protection 6' x 50' 1.5 oz. Plant & Vegetable Protective Fabric. This plastic frost blanket is ideal for protecting flowering annuals, bedding plants, and vegetables from severe cold and freezing. It provides 6 - 8 degrees warmer temperatures underneath the fabric compared to outside conditions, ensuring optimal growth and protection for your plants. Comes in a convenient 6' x 50' roll.