Most succulents prefer warm temperatures and are not able to withstand freezing. Due to the water stored in their leaves, freezing will often result in the plant dying or getting mushy leaves. Extremes in temperature as well as lack of water or sunlight can often result in a color change for succulents. Succulents tend to “blush” or turn a different color when given a shock, such as more sunlight than they are used to. Generally when succulents are lacking in sunlight they will be dull or green.