how much grow light does succulents need
How to Grow Cactus & Succulents Under Lights Cacti and succulents generally are easy-to-grow plants that do not have a long list of requirements. One of the few requirements they have, though, can be difficult to provide indoors. Most cacti and succulents are considered âhigh lightâ plants. They require light levels at a minimum of 1,000 foot-candles to survive. Jungle cacti, like the Christmas cactus (Schlumbergera truncata), can be maintained with 750 foot-candles, but thrive with 1,000 foot-candles.