<P> Tectona grandis is found in a variety of habitats and climatic conditions from arid areas with only 500 mm of rain per year to very moist forests with up to 5,000 mm of rain per year . Typically, though, the annual rainfall in areas where teak grows averages 1,250 - 1,650 mm with a 3 - 5 month dry season . </P> <P> Teak's natural oils make it useful in exposed locations, and make the timber termite and pest resistant . Teak is durable even when not treated with oil or varnish . Timber cut from old teak trees was once believed to be more durable and harder than plantation grown teak . Studies have shown that plantation teak performs on par with old - growth teak in erosion rate, dimensional stability, warping, and surface checking, but is more susceptible to color change from UV exposure . </P> <P> The vast majority of commercially harvested teak is grown on teak plantations found in Indonesia and controlled by Perum Perhutani (a state owned forest enterprise) that manages the country's forests . The primary use of teak harvested in Indonesia is in the production of outdoor teak furniture for export . Nilambur in Kerala, India is also a major producer of Teak of fine quality, holds the world's oldest Teak plantation . </P> <P> Teak consumption raises a number of environmental concerns, such as the disappearance of rare old - growth teak . However, its popularity has led to growth in sustainable plantation teak production throughout the seasonally dry tropics in forestry plantations . The Forest Stewardship Council offers certification of sustainably grown and harvested teak products . Propagation of teak via tissue culture for plantation purposes is commercially viable . </P>

In india where does teak grow most abundantly