Before ice arrives, search out the best ice melt for your situation. Salt products with sodium chloride can harm plants and concrete. Potassium chloride is less harmful. Calcium chloride is the top choice for effective ice melting with no harm to plants or surfaces. Some gardeners use urea fertilizers, which melt ice and won’t harm plants or concrete. It only works with temps above 11°F, so its usefulness is somewhat limited in coldest zones.