Planting flowers or vegetables in the springtime is a tricky proposition. It's ideal to plant early, but if you plant too early you run the risk of cold weather or frost killing your new plants. Fight the effects of frost and cold weather early in the planting season with the DeWitt Supreme Plant Frost Protection Freeze Blanket. This package includes 4 blankets.This freeze blanket is made of polypropylene and is ideal for protecting flower beds, plants, vegetable gardens, and everything in between! This blanket can ultimately help lengthen harvest time and extend the flowering season for your plants because it keeps temperatures under the fabric warmer than the outside contitions. Plus, this blanket can be reused year after year for continued protection. Take precaution and keep your plants safe from frost and cold weather with this freeze blanket.