Beautiful, healthy prickly Pear Cactus for sale at $40. Has been re-potted within the past year. The plants are incredibly easy to care for. Water them every 3-4 weeks and watch them grow. Cactus are basically pest free, and will do well in a bright window. If you can manage it, they love spending the summer outside since it reminds them of home. However, they do not require full sun. Our large cactus is probably 40 years old, and when it gets a little too large, we prune it and root the cuttings. This plant was a cutting 4 or 5 years ago. The plant is about 5' tall .