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
Flower (video game) activating wind turbines. These changes generally result in new flowers sprouting for the player to interact with. Flying through each flower results in a musical chime that harmonizes with the music. The music itself dynamically adjusts as changes are made to the world. The more flower petals the player has trailing the lead petal, the faster the petals move. It is impossible for the player to lose a level or any progress. The game features no enemies, hit points, or time limits. A single play-through of the game takes approximately one hour. Although no speech or text is used anywhere