This is also true for some succulent groups. You can even use our hidden cactus mug as a planter for the smaller succulent plants. This ensures that it does not get waterlogged and can withstand any sudden changes in temperature or weather conditions that might affect other plants. Spear Head can be grown indoors without worrying about seasonal temperature changes. Desiccation problems can occur if roots outgrow their pots and remain in the same condition. This is because water won’t be absorbed properly. Succulents require well-draining soil to prevent root decay.