"String of Hearts", a succulent, needs the same watering requirements as other types. Ceropegia woodenii variegata, "String of Hearts," is not cold resistant. This means that if your area gets less than 40 degrees F (4.5 degrees C), you should plant the succulent in a container which can be brought inside. Anacampseros rufescens is not cold hardy, so if you live in a zone that gets colder than 20deg F (-6.7deg C), it's best to plant this succulent in a container that can be brought indoors. Calico Hearts isn't cold-hardy so it's best for you to bring this succulent indoors.