Rose in greenhouses, and in warmer countries they may also be grown under cover in order to ensure that the flowers are not damaged by weather and that pest and disease control can be carried out effectively. Significant quantities are grown in some tropical countries, and these are shipped by air to markets across the world. Some kind of roses are artificially coloured using dyed water, like rainbow roses. Rose perfumes are made from rose oil (also called attar of roses), which is a mixture of volatile essential oils obtained by steam distilling the crushed petals of roses. An associated product
Oil-paper umbrella as the umbrella surface is soaked in persimmon pigment. The persimmon pigment is made from fermenting the juice of green persimmons, which provides a suitable stickiness. The soaked flower petals are stuck to the umbrella scaffold one by one. Paintings or pictures are drawn on the peach flower petals prior to painting tung oil on top. The finalized umbrella is left to dry in a dry dark room. It requires at least 70 steps to produce a well-crafted oil-paper umbrella. In Luzhou, Sichuan, the oil-paper umbrella culture started around the end of Ming dynasty and beginning of Qing dynasty. Oil-paper