Lawsonia inermis , heena plant thrives well under arid to tropical and warm temperate climatic conditions. It need moderate rainfall of around 40 mm , less moisture , day time temperature of about 30-40 degree C.
Climate plays a dominant role in the production of quality leaf crop and tannin content .
The rainfall distribution is important and Henna requires dry sunny periods along with cool nights for proper growth.
Lawsone, the active ingredient responsible for its dye properties of heena , and agro climatic conditions influence the dye properties .