When Does the Night-blooming Jasmine Bloom? The Latest Blooming Season Guide

Night-blooming jasmine is a plant many households like to grow, with slender branches, blooming in summer and autumn, yellow-green flowers that open in the evening, giving off waves of strong, striking fragrance, very suitable for home growing, but night-blooming jasmine cannot be kept indoors for long periods, as it can cause dizziness, coughing and even asthma and insomnia. Now let us take a look together at when night-blooming jasmine blooms!

When does night-blooming jasmine bloom?

Generally, the blooming season of night-blooming jasmine is from May to October. The reason the span is so wide is that it is affected by variety, temperature, humidity, soil and the climate of north and south, and thus shows different times. In the north, the peak blooming season is in late June, while in the south it is mostly in August to September. This is because the summer heat in the south causes very high air humidity, which suits night-blooming jasmine blooming.

Why does night-blooming jasmine bloom at night?

1. This plant relies on rather ugly-looking moths for pollination, unlike other flowers that rely on bees and other small creatures, and moths only appear at night. So in order to attract night moths to pollinate, it chose to release an overpowering fragrance at night. This is the plant's ability to adapt to its environment.

2. The stomata of night-blooming jasmine are completely opposite to those of many flowers. Other flowers close their stomata a little when air humidity is high and open them when air humidity is low, while night-blooming jasmine does the opposite. If air humidity is very high, the stomata open very wide, and the aromatic substances inside can spread out more quickly, producing a rich fragrance. At night, because there is no sun to cause evaporation, the ground temperature suddenly drops, cold air sinks, and humidity sharply increases. In such a moist environment, night-blooming jasmine naturally opens more easily, and opens all the more intensely.

Why does night-blooming jasmine fail to bloom?

1. The flower buds of night-blooming jasmine have already formed on the bulb the previous year. It may be that a small tuber was planted, which has not reached blooming age, and therefore cannot bloom. Generally, the bulb diameter of night-blooming jasmine must reach more than 2.2 cm, and the inflorescence primordium has already formed inside the previous year, so that it can bloom after planting.

2. If the bulb is dug up too late or the tuber is stored improperly in winter, with the temperature too low or exposure to moisture or freezing, the flower buds inside the stem tuber are damaged by cold or rot, and planting the next year also will not produce blooms.

3. If the bulb is dug up too early, it affects the differentiation of flower buds inside the tuber, so that planting the second year cannot produce blooms.

4. Applying too much nitrogen fertilizer leads to excessive growth of stems and leaves, fewer flowers, and in severe cases even no flowers at all.