Check out this article we wrote on the best grow lights as reviewed by succulent lovers if you need some help picking one out! These roots are important for cacti plants' moisture intake. In this post, we discuss essential information about cacti plants that you need to know. It means that regular watering is essential during this phase. Most succulent owners find watering every seven to 14 days during the summer works well in most instances. I am able to find all the things I need whenever I need them.