In most cases, cacti plants can easily be distinguished from other succulent plants by the presence of areoles on their surface. They can be moved later - After the succulents have grown accustomed to the outside sun, they can then be moved to a more shaded part of your yard. What eventually saved the plant that I had was when the rain came in my area. It took them two weeks to get cactus from different farms in Mexico before they opened the store. Two different methods can be used to plant succulents. Succulents will grow tall and lose pigmentation to try and absorb more sunshine.