Snow-in-summer is a beautiful plant that blooms in the hot months of June and July, bearing small white flowers that resemble snowflakes. It's scientific name is Cerastium tomentosum, but it's also known by many other common names, such as silver carpet, dusty miller, and lamb's ears. These names allude to the plant's soft, fuzzy foliage, which is often silver-white in color and velvety to the touch. Other synonyms for snow-in-summer include little mouse ears, ghost carpet, and white rock rose. No matter what you call it, this perennial groundcover is a lovely addition to any garden.