In Long An province in Vietnam you will see large plantations of dragon fruit. They are very healthy and fruitful because they are irrigated and also adequately fertilized.
A few years ago, several hundred hectares of rice land were converted into dragon fruit plantations because a feasibility showed that dragon fruit could be much more profitable than rice. That is why today there are at least 800 contiguous hectares planted to this fruit crop in Long An province.
Dragon fruit is a high value crop that could be processed into jam, juice and other products. The fresh fruits are also sold direct to the fresh market locally or abroad. The going price during our visit (Feb. 19, 2016) was the equivalent of P120 ex-farm.
The good thing in Vietnam is that when they decide to grow a commercial crop, they really produce in big volumes, just like jackfruit, cashew, coffee, black pepper and others.