From my perspective as a tuberose plant (Polianthes tuberosa), my primary need is abundant energy. I require a location with full sun exposure for at least 6-8 hours daily. This solar energy is absolutely non-negotiable; it is the fuel I use to photosynthesize and produce the large, fragrant flower spikes I am known for. I also crave warmth. My bulbs are tender and originate from warm climates, so I cannot tolerate cold soil or frost. Please plant me only after the soil has warmed significantly in spring and all danger of frost has passed. A sheltered spot, protected from strong winds that could damage my tall flower stalks, is also greatly appreciated.
My root system demands excellent conditions to thrive. Whether in a garden bed or a container, I need well-draining soil. Soggy, waterlogged conditions will cause my bulb to rot, which is fatal. For garden planting, amend heavy clay soil with generous amounts of compost or grit to improve drainage. For pot cultivation, select a container at least 30-40 cm (12-16 inches) in diameter with adequate drainage holes. Use a high-quality, free-draining potting mix. A little bone meal or a slow-release bulb fertilizer mixed into the soil at planting will provide essential nutrients for my initial growth phase.
Planting me correctly is simple but crucial. My bulb has a distinct top (pointy end) and bottom (flatter, sometimes with remnants of old roots). Always position me with the pointy end facing upwards. In the garden, plant me at a depth of 10-13 cm (4-5 inches). In a pot, a depth of 8-10 cm (3-4 inches) is sufficient. Space multiple bulbs about 20-25 cm (8-10 inches) apart to give my foliage and roots room to expand without competition. After placing me in the hole, cover me gently with soil and water me in thoroughly to settle the soil around my base and eliminate air pockets.
After planting, I will begin to send out roots to anchor myself and absorb water and nutrients. This is followed by the emergence of my grass-like foliage. Throughout the growing season, I require consistent moisture. Water me regularly, especially during dry spells and once my flower spike begins to form, but always allow the top layer of soil to dry out between waterings. A monthly feed with a balanced, water-soluble fertilizer high in phosphorus (the middle number on the fertilizer package) will support the development of my strong, fragrant bloom stalk, which typically appears in mid to late summer.
Once my beautiful white flowers have faded and my scent has dissipated from the evening air, my focus shifts to storing energy for the next cycle. Allow my foliage to remain intact. Do not cut it back. The leaves will continue to photosynthesize, sending energy back down to my bulb. Once the leaves have turned yellow and died back naturally, you can gently remove them. In frost-free climates, I can remain in the ground with a layer of mulch for protection. In colder zones, I must be lifted. Carefully dig up my bulb, brush off the soil, let me dry in a warm, airy place for a week, and then store me in a cool, dark place in peat moss or paper bags until it is time to plant again next spring.
