Tuberose is a perennial plant that grows easily in a sunny, summer flowerbed. Tuberose grows with a cluster of long, slender leaves beneath tall stalks that hold beautiful white blossoms. These blossoms are popular for using in flower arrangements because they have a pleasant scent. In warm regions, a gardener must only mulch the growing area to protect the tuberose bulbs over the winter. In cold regions, a gardener must lift the bulbs and store them over the winter months.
Prepare a sunny growing area in the spring after the last frost. Use the spade to work the soil down to a depth of 5 inches. Add 2 inches of compost to the top of the soil and work this in with the spade.
Dig a hole for each bulb, spacing each hole approximately 8 inches apart and making the holes deep enough that the bulbs will be beneath 2 inches of soil. Place a tuberose bulb in each prepared hole and cover the bulbs with soil. Water generously immediately after planting.
Provide at least 1 inch of water per week to the growing tuberose plants over the growing season. Continue to water the plants even after blooming is over.
Fertilize the tuberose plants once per week. Mix the fertilizer with water according to package recommendations for the size of your growing area.
Watch for blossoms during the last half of the summer. Enjoy the blossoms in the flowerbed or cut them off with sharp garden shears and use them in floral arrangements. This will not harm the plants.
Leave the stems and leaves intact until the tuberose plants fade and wilt naturally. The green foliage feeds the bulbs after the plant blooms. If you do not leave the tuberose foliage intact, the plants may not bloom during the next growing season. When the foliage turns yellow, cut the plants back to the soil level and discard the foliage.
Dig up the bulbs after the first frost if you live in USDA zones colder than 8. Remove the bulbs from the soil and allow them to dry for one week in a sheltered location. Place peat moss into the bottom of a brown paper bag and place the bulbs on the peat moss. Fold the top of the bag down and place the bag in a cool, dry location over the winter months.
Place 3 inches of shredded mulch over the growing area after the first frost if you live in USDA zones 8 and above. Leave the mulch on the area until the next spring and them remove it before the ground warms significantly.
Divide the tuberose bulbs every four years in the autumn. Dig up the bulbs and store them following the directions in step seven. In the spring, divide the bulbs and replant following the directions in steps two.