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
Magnolia × alba taxonomic synonym "Michelia alba" to fanciful ones such as 'white fragrant himalayan champaca'. Names in other languages include "kantil" in Javanese. "Magnolia" × "alba" matures to 30 meters with evergreen leaves; the flowers have a count of 12 tepals. "Magnolia" × "alba" is widely cultivated as an ornamental in Asia, particularly tropical and subtropical regions of China and Southeast Asia for the strongly fragrant flowers. In Indonesia, the pleasantly fragrant flower is used and arranged together with "Jasminum sambac" as flower garland, especially wore by brides during traditional wedding ceremony. An essential oil is extracted from the flowers. In China,