This article, which we reviewed by succulent lovers, is a guide to the best grow lights. You can either dig a hole in the soil using your fingertips or buy a moisture tester. It's easy to grow this plant indoors. But, in some parts of the globe, this is more difficult. Before you start walking away, however, be sure to check for water retention at the bottom. If your succulent's color doesn't start coming back, and it still seems to be growing tall or sideways, you may need to invest in a grow light.