You will learn how to take care of your succulents in cold weather, what temperature ranges can be dangerous for succulents and why 40 degrees is the best. In the cooler months, the plant can thrive at temperatures as low to 40 degrees Fahrenheit. However, in the summer, stringing dolphin succulents can withstand temperatures of up to 80° Fahrenheit. Although it may seem tedious, E.. enopla seed can be very difficult to find. However, if you have the plant already, you might want to collect seeds. If you're expecting severe weather, you might consider moving your plants indoors.