These articles may help
How to Grow Turmeric
http://www.growthis.com/how-to-grow-turmeric/

SOIL
Plant turmeric in rich, well-drained soil. It can grow in most any type of soil, but drainage will only help and thick, clay soils will make it more difficult to care for. Test the pH of the soil to make sure it is between 6.0 and 7.8.

Soil Preparation for Root Crops
http://www.garden.org/foodguide/browse/veggie/roots_planting/615

Where do you get the termeric?Thx

This post was edited by JCTsai on Sat, Jan 18, 14 at 18:34

I buy it from a grower in Hawaii. Thanks for an article. BTW, if you are interested in the growers website email me and I will give it to you.