The Curcuma Alismatifolia is more commonly known as the Siam Tulip. It's a tropical flower, native of Thailand, from the Zingiberaceae family. Classified as a ginger, this perennial flower will complement your garden with grace and beauty all summer long. Being a tropical plant, Curcuma Alismatifolia likes hot and humid weather. In the United States it is hardy in gardening zones 9 and higher, although with special care it can be grown in containers farther north.
Water the plants well beginning in the spring when the soil starts to warm up. Allow the soil to dry out about an inch in depth before watering again. Once the flowers are in bloom, do not water from above as the flowers do not like to be wet. If your plant is in a container, move to an area that is protected from heavy rain.
Keep plants from receiving too much direct sunlight. The Curcuma alismatifolia likes a lot of light, but too much direct sunlight will burn the flowers.
Top dress the soil with a couple handfuls of compost each spring. This will loosen the soil and give the plant some added nutrition.
Fertilize with a water soluble tropical flower fertilizer every other week during the growing season. Do not fertilize the plant after flowering until you start to see growth the following spring.
Place container plants on a tray of pebbles and water if the location gets too dry. The plant likes humidity and will grow better if the air isn't too dry, such as indoors with central air conditioning.
Re-pot container flowers every two years. This will renew the soil with nutrients and re-energize your plants.