The rootstock is variously described as an elongated corm or a rhizome. Plants vary in height from about 7 cm (2.8 in) in the case of T. pusilla to 1.6 m (5.2 ft) in the case of T. spathata subsp. sincorana. Linear to lanceolate leaves grow from the base of the plant. Most species have flowers in some shade of yellow.
Water the roots thoroughly about six hours before planting to ensure that the plant is well-hydrated, reducing the risk of transplant shock. Water the plant daily for the first week after transplanting. After the first week, reduce watering to every two days for the first month or two after planting. After one to two months, reduce to watering once weekly until the plant establishes itself in the new site. This is a general guideline for watering all plants; follow the specific plant's watering needs, and pay attention to plant performance as a more accurate guide to irrigation.
A 3-20-20 fertilizer that contains 3 percent nitrogen, 20 percent phosphorus and 20 percent potassium encourages roots to grow strong and healthy. Keep the nitrogen content low, as it promotes leggy green growth at the expense of rooting, flowering and fruiting.
