The ornamental cactus having integral lights is a purely decorative cactus that includes a plurality of lights integrated into the construction of the decorative cactus. The plurality of lights is wired to a powering member. At least one solar cell is wired to the powering member in order to recharge the powering member. Ornamental flowers and insects may optionally adorn the decorative cactus. Lights may be wired into the ornamental flowers and insects to provide an enhanced appearance. In use, the lights illuminate the flower, insects, and decorative cactus.