The tuberose (Polianthes tuberosa) is an herbaceous bulbous plant that produces fragrant, white, tubular flowers. Its pleasing smell and long life as a cut flower make it a southern gardening favorite. Like most bulbs, the tuberose is a sunny plant, thriving in full sun locations.
Tuberoses need full sun for proper growth. Too much shade will result in poor vegetative form and limited flowering.
Tuberoses grow in USDA hardiness zones 8 and 9. Plant tuberoses in productive, well-drained soil. If well-drained soil is not present, consider installing a raised flower bed. Keep soil moderately moist. Fertilize once or twice during the growing season with bulb fertilizer.
Tuberoses produce the highest visual effect when massed in a flower bed or border. To create a massed display, plant the tuberous bulbs 4 to 8 inches apart under 2 inches of soil during the months of January through March. Given proper growing conditions, the plants will multiply rapidly.