Orchids are wonderful flowers.There are several rooftop orchids garden in Dhaka city.This my rooftop garden in my house.I have some orchid plants in my garden.I have collected those orchids from local nurseries of Dhaka.I have Dendrobiums,dancing dolls,cattleya orchid etc. It is very difficult find any good book on orchids in https://lovefororchids.blogspot.com