If growing outdoors, the String of Dolphins may easily get sunburned when exposed to too much sun. They are not heat-loving succulent so don't give them direct sunlight outdoors when it is getting too hot; place them in a shaded spot where they will get indirect or filtered sunlight all day. However, if growing them as a houseplant, you should place them in a south-facing window where they can get at least 6 hours of morning sunlight per day