Which flower has more essential oils, lily or rose?
An essential oil has no clear definition, and all essential oils are a mixture of chemicals from one plant source. So they have the same number of essential oils: one. There is rose essential oil and lily essential oil. These are made by crushing and distilling vast amounts of petals or infusing oils with the petals. A simple perfume that you can try to make is rose water, by infusing water with perfume elements from rose petals. See the link.