How does Bougainvillea survive the winter
This article brings you the experience of how Bougainvillea survives the winter and the skill of green plant maintenance, the following for you to introduce in detail
Bougainvillea is a very widely cultivated southern flower, which is cultivated all over the south and north, with many advantages, but the shortcoming is that it is not cold-resistant, and may be frozen or even killed in winter when the temperature is low, leaving only an empty pot. In the not-so-cold southern winter areas and the northern indoor heating areas, it is not a problem for Bougainvillea to survive the winter. In some places where the temperature is minus 7 or 8 degrees in winter and no heating, even people can't help shivering with cold, not to mention Bougainvillea. When there is no condition to let Bougainvillea survive the winter safely, we should work hard on maintenance, and try to avoid frostbite or freezing to death. How to let Bougainvillea survive the winter safely in low temperature environment? Mastering 3 skills, it will not freeze to death even at minus 5 degrees, and when spring warms up, it can grow leaves and flowers again.
1. Pruning
In the colder areas without heating in winter, when the minimum temperature of the Bougainvillea maintenance environment is lower than 10 degrees, we should have a big cut for the winter. When pruning, mainly cut weak branches, diseased branches, long branches, crossed branches, completely immature or semi-mature branches, and leave only the strong, vigorous and latest two or three main branches this summer, others can be cut off. Don't hesitate to cut at this time, in order to achieve the goal of "abandoning soldiers to ensure the general" is the best choice for Bougainvillea to spend the winter, and there is no worry about no firewood as long as green mountains remain. If the whole pot is frozen to death, there will be no next year...
Reasons
The thicker the branches of Bougainvillea, the stronger the activity and the stronger the cold resistance. Those branches that are too weak and grow poorly have poor cold resistance and will freeze dry even if not cut off. In addition, after the weak and immature branches of Bougainvillea are frozen, the mature old branches will also be frozen or dry. Cutting off the branches with poor cold resistance earlier will make it easier for the mature old branches to spend the winter. For example, if you only leave the mature old branches, it may not be frozen or killed even at minus 5 degrees. But if you also leave the immature and weak branches, a large number of branches may be frozen or killed at 0 degrees.
2. Earth
When the minimum temperature drops to below 5 degrees, especially around 0 degrees, whether potted or field planted Bougainvillea, we can cover the roots with soil appropriately to protect the stems. Even if the above branches and leaves are frozen or killed by the low temperature in winter, the roots and stems are not a problem, and new branches and buds can grow normally when the weather warms up next year, with leaves and flowers growing densely. When covering the soil for field planting of Bougainvillea, the soil ball can be higher and larger, and try to protect the main stem as much as possible. When covering the soil for potted Bougainvillea, if you are worried that covering the whole pot surface will affect the root growth, you can roll up the main stem with paper and then fill it with small particle dry soil to prevent freezing. The lower the ambient temperature, the thicker the soil layer should be, and the better the anti-freezing ability.
How does Bougainvillea survive the winter
Reasons
In addition to the weak and tender branches, the stem of Bougainvillea is the most likely to be frostbitten. Once the stem is frozen or killed, the whole plant is basically finished. The reason is that the temperature of the Bougainvillea stem changes greatly in winter. During the day when the sunshine is good, the temperature is high, and at night when the temperature is low, the pot surface is heavy with humidity, and it cannot be protected by soil like the roots, so it is likely to be frostbitten or killed. After covering the soil, the stem is well protected, and even at minus 5 degrees, the actual temperature of the stem at night may still be above 0 degrees, so it will not be frostbitten.
3. Stop watering
In the colder areas without heating in winter, when the temperature is lower than 5 degrees, Bougainvillea will gradually shed all its leaves. Before the leaves fall off, you can pour a thorough watering. After the leaves fall off, if the minimum temperature is lower than 5 degrees for a long time, you can completely stop watering. Some flower friends worry that Bougainvillea will dry to death if it is not watered at low temperatures in winter, so they will water it from time to time. In fact, most of the Bougainvillea withered and died in winter are frozen to death, not from drought. The amount of water evaporation from the potting soil at low temperature is very small, and sometimes you feel that the pot surface is white and completely dry, but in fact, the middle and lower parts are still moist. The wetter the potting soil, the weaker the cold resistance of Bougainvillea. Dry maintenance even if the ambient temperature is minus 5 degrees, it is unlikely to freeze to death or injury.
Reasons
Bougainvillea with no leaves is completely in a dormant state and consumes almost no water. The amount of water evaporated from the pot surface at low temperature is also limited, so it is no problem to pour a thorough watering before the leaves fall off for one or two months (when the temperature is lower than 5 degrees for a long time). As long as the soil is moist, the roots will not dehydrate and dry, and minus 5 degrees can do nothing about it. If the potting soil is always too wet, even at 0 degrees Celsius, the roots of Bougainvillea are easily frostbitten. In this case, when the Bougainvillea grown in the open air encounters rain or snow, it must be covered in time to prevent it from getting wet, otherwise, even if the temperature is not very low, it is still easy to freeze and kill.
Reminder: This autumn, the new Bougainvillea seedlings, whether large or small, are not recommended to be kept in an environment below 0 degrees Celsius, and other methods should be found when the temperature is too low. The above three skills are only applicable to Bougainvillea with long maintenance time and can be operated indoors and outdoors.
The content shared in this article about how Bougainvillea survives the winter and the skills of Bougainvillea wintering can be used as a reference for green plant lovers.