genus which includes some species of small evergreen shrubs, sometimes cultivated as lively or annual plants, originating in Central America. The cestrum nocturnum have long erect stems, slightly falling at the apex, which form large tufts, which tend to widen, given that the plant produces new stems throughout the vegetative period; the stems are 50-100 cm long and carry numerous oval leaves, bright green, shiny, pointed, alternate; they tend to be slightly climbing. Throughout the summer, large rounded inflorescences bloom at the apex of the stems, consisting of numerous elongated tubular flowers, white, yellow, orange, red or purple, sometimes intensely fragrant. To favor a more prolonged flowering it is good to cut the stems that carry the withered inflorescences at the base; at the end of summer the flowers give way to small rounded berries, green, red-brown when ripe. Cestrum nocturnum it produces greenish-yellow flowers, which bloom only at night, giving off a very intense perfume, which some find unpleasant, the ripe berries are white.
THE cestrum nocturnum they should be planted in a very sunny place, or even in shady areas for a few hours of the day; they can generally bear temperatures of a few degrees below zero, in places with very harsh winters they must be protected, from October to February, with tnt.
The night jasmine is a only partially rustic variety and therefore it fears the cold more than the other species; for this reason, it is a plant suitable only for areas with mild winters. Being climbing plants, with flexible stems, it is good to remember to place them in a place protected from the wind.