Some flower friends will see the word "Chunhua" when they are looking for Camellia information. What is vernalization? What is Camellia vernalization? Let's get to know about it!
What is Camellia vernalization? What is vernalization? The so-called vernalization means that flower buds can only bloom after a period of low temperature or short sunshine, otherwise flower buds cannot fully develop and mature. That's why there are many flower friends whose Camellia don't bloom very much, or even drop before they see it. One of the main reasons is that the transition period of vernalization is not enough.
The vernalization temperature and time of Camellia vary from variety to variety. Generally, it requires low temperature of - 3 ℃ ~ 5 ℃ for more than 10-20 days. The vernalization time of early flowering varieties can be shorter and the temperature can be higher; Late flowering varieties require a longer vernalization time and a lower temperature. If your Camellia starts from September to November, it will immediately enter the high temperature greenhouse, which will stop the vernalization process and cause the flower bud development to stop or incomplete.
So when you buy camellia, don't rush to increase the temperature, be sure to make Camellia in the local vernalization process, let Camellia after a period of low temperature (to gradually cool down) to maintain the lowest temperature of 0 ~ 2 ℃ and the highest temperature of 5 ~ 7 ℃ for more than 20 days, gradually warming to the lowest temperature of 8 ~ 10 ℃, the highest temperature of 15 ~ 25 ℃ can blossom smoothly; many families directly put it indoors for winter, one day On the one hand, the high indoor temperature leads to insufficient vernalization; on the other hand, the light is seriously insufficient, resulting in nutrient depletion; on the other hand, the indoor humidity is too low, which is very easy to produce flower and bud drop. The prevention and control measures are to first go through the process of low-temperature vernalization, put it indoors in a place with direct light, and cover the basin with plastic film to humidify until flowering.
It can be simply understood that camellia needs to gradually cool down and gradually heat up, and maintain appropriate humidity and sunlight.
Most Camellia cultivars have to go through a period of vernalization before flowering (except Paeonia suffruticosa and some Prunus Mume). So the North try to buy early varieties, vernalization requirements are not high. We should see light in the south in winter. If the room temperature is high, there is no temperature difference between day and night, and there is no light during the day, camellia is really easy to grow, fail to bloom well, fall buds, and even die.