Ylang-ylang is a tropical tree that produces long-petaled flowers virtually year-round that emerge lime green and mature to lemon yellow. In its native Philippines, it is pollinated by moths and so the fragrance is most intense at sunrise. The highly prized fragrance is used in a number of colognes and perfumes and is also sprinkled on clothing before placing in long-term storage since it repels insects. In tropical humid climates, it can grow to 100 feet in height; however it is amenable to container culture, as long as a few key environmental factors are provided: bright indirect light, moisture-retentive soils that do not dry out, and high humidity.