There is not much of a difference when planting and growing purple cacti. That said, here are the steps you need to take: Step 1: Wearing your gloves, look for a healthy, blemish- and scar-free oval segment or pad of your six-month-old purple cactus. Step 2: Gently grasp the pad’s top and cut it off from the parent plant using a disinfected knife and following the plant’s natural seam. Step 3: Place the cut pad on a clean flat surface under filtered sunlight or in a room with a temperature of at least 60 degrees Fahrenheit. Step 4: Leave the pad for seven to 10 days, allowing it to form a callus tissue over its cut edge. Step 5: Fill a pot with well-draining soil, ensuring you leave about one to two inches of the pot empty. Step 6: Slowly set the cut pad in the pot’s center, with the callused edge resting on top of the soil. Step 7: Gently push 1/3 or 1/2 of the cut pad into the soil. Then, tamp the soil down around the pad’s base, ensuring it stands up straight. Step 8: Evenly moisten the soil with water. Step 9: Place the pot in a room with a temperature of at least 60 degrees Fahrenheit. Step 10: Check your setup, and once the top inch of its soil starts to dry, water it. Step 11: Once you see the cactus producing new growth, apply 1/4-inch of water every seven days when nighttime temperatures are above 60 degrees Fahrenheit. Water it every 14 days if the nighttime temperatures are below 60 degrees Fahrenheit. Also, move it to an area with sufficient sunlight to help it get used to brighter light. Step 12: After two weeks, move your setup to full sunlight if you plan on re-planting the purple cactus in the ground. Step 13: Allow the purple cactus to grow in its pot for at least a year. Then, transplant it in the ground during the spring season.