Turmeric is a pungent, yellow spice commonly used in Indian and Thai cuisine, including most curries. The health benefits of turmeric including anti-cancer properties, protection against Alzheimer’s, pain relief, and much more. What’s more, the flowers of the turmeric plant are stunning and add a lush, tropical aesthetic to any backyard or garden. Unlike many vegetables and herbs, flowering turmeric will not affect the roots and the flowers are actually edible themselves. Here’s how to grow turmeric.Turmeric takes 8-10 months to fully mature. It is dormant over winter, even in tropical climates. In general, turmeric plants do not do well when temperatures drop below 65° F. Plant in the early fall in zones 9-11. Plant in late spring (well after frost) in northern grow zones. 

Yes turmeric like ginger show a postharvest dormancy period in which sprouting is inhibited. The use of hot water and ethylene treatments can help break dormancy and allow more uniform sprouting and development. You may want to wait until the start of the break of natural dormancy then treat with hot water bath and ethrel this will accelerate the sprouting and it uniformity. Seed pieces can be grouped and planted according to time of dormancy break to manage the field for uniformly. 

Yes turmeric rhizomes have dormancy period. Please read the attached articles.