Rhododendron has different varieties, different conservation areas and different blooming times. In most cases, the flowering period is between April and June. If the light is sufficient, the flowering can last for one month. In case of improper maintenance, it can only be operated for 1-2 weeks.
Let's talk about the different flowering time, the flowering period of spring cuckoo is April, the flowering period of summer cuckoo is May to June, and other varieties are between spring and summer. For the region, Rhododendron cultivated in Greenhouse in North China can bloom in January to February, in March to may in open field, and in July to August in high altitude environment.
Flowering is closely related to temperature, which directly affects the formation and differentiation of rhododendron flower bud. Temperature control is also one of the important factors to control flowering time. The practice of small-scale weaving has proved that under sufficient light, when the temperature is 15-25 ℃, the flower bud develops rapidly, and the flowering time will advance. It only takes 30-40 days from bud emergence to flowering. But under 15 ℃, it takes more than 50 days to bloom.
Each species of Rhododendron blooms only once a year, but it can bloom in spring, summer and autumn, with continuous blooming. At home in the last pot of hybrid varieties, can alternate flowering. But in some places, it has been cultivated
[white azalea]
