How cold-resistant is Osmunda japonica? What is the lowest cold-resistant temperature?

The cold resistance temperature of osmanthus fragrans depends on different varieties. Common varieties can withstand the low temperature of-10, and Lagerstroemia speciosa can withstand the low temperature of-12. Lagerstroemia speciosa, a Japanese red-leaf tree, can withstand a low temperature of MINUS 23 degrees, while Lagerstroemia speciosa, an American red-leaf tree, can withstand a low temperature of MINUS 25 degrees. Even if you plant the most common plants, you don't have to worry about winter.

Osmunda japonica has good heat resistance and frost resistance, and can be planted in the open field in many areas of China. It also likes sunshine very much, so it is necessary to choose a sunny place for planting, so as not to hinder its growth and flowering due to insufficient light. In winter, the temperature should not be too low. Although it is very resistant to freezing, we should pay attention to cold and warmth.

Cold resistance temperature of Osmunda japonica Thunb.

1, growth temperature

The optimum temperature for Osmunda japonica is 15-40℃. It is particularly drought-tolerant, even in hot places in the south.

2. Overwintering temperature

The wintering temperature of osmanthus fragrans depends on different varieties. Osmanthus fragrans can tolerate the low temperature of-10, Lagerstroemia speciosa can tolerate the low temperature of-12, Lagerstroemia speciosa in Japan can tolerate the low temperature of-23, and Lagerstroemia speciosa in America can tolerate the low temperature of-25.

3. Low temperature and minimum temperature

The lowest temperature of osmanthus fragrans is about-10 degrees, so in most areas, we don't have to worry about the temperature in winter, so we can just put it outdoors for the winter without special treatment.

Overwintering maintenance of Osmunda japonica Thunb.

Osmunda japonica should be watered with proper amount of antifreeze water when overwintering and once before overwintering. Otherwise, it will affect the cold resistance of plants, and the amount of water should not be too large, so as to keep warm after freezing in winter. After flowering, the residual flowers should be cut off in time, and some diseased branches should be cut off at any time, so as not to consume the nutrients of trees, which is not conducive to overwintering.