Fall is the ideal season, as the plants foliage begins to die back. The best time to divide is in the fall, repot them and transplant outside mid may. · you don’t have to divide them ever year, but don’t simply wait until you want to grow new plants. By following the steps in this guide, you can successfully divide your tuberoses and enjoy their beautiful flowers for years to come. Tuberoses is a must to grow in your cutting garden as cut flowers. · for most effective display plant the tuberous bulbs 8 inches apart and 2 inches deep. · timing is critical when dividing tuberose bulbs. Use sharp shears or a knife and avoid pulling on the foliage, which may damage the bulb. · dividing tuberoses is a great way to propagate new plants and keep your existing plants healthy. Place the clumps in an area protected from rain and allow the root stock to thoroughly dry before cold weather arrives. · learn how tuberose bulbs naturally multiply and get practical tips for dividing and replanting them to expand your fragrant garden. Every 4 or 5 years tuberose clumps should be lifted in september for division. Cut back the dead and dying foliage to approximately 2 to 3 inches above the soil level. Every four to five years is sufficient for the plants health. It’s best for the health of the tuberose plants if you dig up and divide the root systems every four to five years. Youre not looking to divide annually; · tuberose bulbs are divided in fall after the foliage has begun to die back naturally on the plants. This natural cycle indicates the tuberose is entering dormancy, making it the perfect time for division.