How much spacing is maintained for vanilla farming?

A space of 2.5 to 3 metres is required between the plants and about 2 metres distance between rows and 2 metres distance within the rows, thereby making a population of 1600 to 2000 trees per ha. Vanilla cuttings are planted in rich organic content soil and they are filled in the trenches with the spacing of 8ft and in these trenches 7 feet long support pillars are placed with spacing of 6 feet.