Jasmines do in fact bloom during the day as well (dependant on the type of Jasmine), the scent of the flower is more prevalent at night. The flower has a long Trumpet shape normally attracts moths (at night) or butterfly's (during the day) for pollination.
Jasmine does bloom only at night. While most flowering plants have hormones that tell it to bloom during the day, the Jasmine plants hormones tell it to bloom at night.
Queen of the Night is a flower that blooms only once in a year, that too for a night; the bloom dies very next morning.
Different species bloom at different times, some bloom in the spring, some in the summer. Some species bloom only at night, others during the day.
The candle-buds that Simon sees on the mountain bloom during the day and close up at night. They only bloom once a year and are described as producing a sweet fragrance.
There are some lilacs that are repeat bloomers so they might bloom in fall but most bloom in spring.
Flowers that bloom at night are trying to attract night flying insects and animals to pollinate them. Such flowers are usually pollinated by moths and (strangely enough) by bats.
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Raja
Through stem cuttings
The 200 species of the jasmines are native to the tropical and temperate regions of the Old World. See the Related Link posted below for more information:
There are over 200 species of jasmine worldwide. Jasmines are flowering plants that belong to the Oleaceae family and are known for their fragrant white flowers.
Night flowers bloom at night to attract pollinators such as moths and bats, which are more active during the night. These flowers often have strong scents and light coloration to make them more visible in the darkness. Blooming at night also helps the flowers conserve energy by avoiding the harsh sunlight during the day.