Which place in our country planted king lotus, which place to arrange warm room for king lotus to live, why

Wanglian is a typical tropical plants, like high temperature and high humidity, cold tolerance is very poor, the temperature drops to 20 ℃, growth stagnation. Temperature drops to about 14 ℃ when there is cold damage, the temperature drops to about 8 ℃, death by cold. In normal years in Xishuangbanna, it can overwinter in the open ground and produce seeds, and the seeds produced can reproduce offspring, but there is frost damage in particularly cold years. Guangzhou, Nanning warmer years, can be in the open ground overwintering, general years need insulation facilities to overwinter. The vast area north of the Tropic of Cancer, warmer years can not overwinter in the open ground, only in the special greenhouse overwintering. Wanglian like fertile deep sludge, but do not like too deep water, cultivation of sludge in the pool, need to be more than 50 cm deep, the depth of water to not more than 1 meter is more appropriate. When planting sufficient stable fertilizer or cake fertilizer, leaf blossom period, fertilizer 1 to 2 times, after autumn that should stop fertilizing. Wanglian likes light, cultivation of water should have sufficient sunlight. Artificial cultivation of the key technology is the winterization of cold. South China's Hainan Province, can be safely overwintered in the open ground, the mainland of Xishuangbanna and Leizhou Peninsula and other tropical areas, the general year, are required to simple winterization can be overwintered in the open ground, the rest of the vast area of southern China, the natural water surface is not suitable for cultivation, it is appropriate to plant in the artificial construction of pools, with a double layer of film to cover the surface of the pool during the winter, with a water exchange device, sunny nights into warm water 1 time, rainy days every day and night to change the water 2 to 3 times! In the winter, the surface of the pool is covered with a double-layer film with a water changing device, and the warm water is changed once at night on sunny days and 2-3 times every day and night on rainy days. Northern South China to Central China, North China, cultivation with pools, it is necessary to establish a special greenhouse, winter to maintain air and water temperatures are at about 20 ℃.