Tuberose (Polianthes tuberosa) is a plant native to Mexico. Its fragrant flowers grow on tall stalking stems that can reach 3 feet high. The tuberose flowers are white and tubular-shaped, growing to 10 inches in length and blooming in late summer. Growing from bulbs, tuberose is a slow-grower, and after planting in the spring, gardeners need patience as they wait for the plant to peek through the ground. Planting tuberose flowers is relatively easy; it's the waiting that is hard.
Select a planting site that gets full sun daily for the best results. Tuberose will tolerate partial shade in the late afternoon, especially in warmer areas.
Loosen the ground in the spring after the last frost has passed. Use sandy soil and amend with compost to make sure the ground is well-draining. If water pools on the ground after a rain, the soil is not well-draining enough and more compost can be added.
Dig a furrow that is approximately 4 inches deep and place the tuberose bulbs in the furrow spaced about 6 to 8 inches apart. Place the bulb in the furrow with the pointed side facing up and cover with soil. Tamp down gently.
Water the newly planted bulbs thoroughly using a soaker hose. Keep the bulbs watered on a regular basis, such as once or twice a week, just so the soil does not dry out more than 1 inch down.
Fertilizer the tuberose plants with a balanced fertilizer, 8-8-8, twice a month for optimal growth. Use a water-soluble food, and water in well after applying.
Add a layer of mulch around the plants after the shoots have grown at least 6 inches high. Use shredded bark or pine needles.