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室内观叶植物大部分原产于接受太阳光热多、年平均温度高、冬夏和昼夜温差小的美洲低纬度地区、非洲南部以及东南亚的热带雨林地区。因此,它们大都抗寒能力很差,尤其是对低温反应敏感,一般生长适宜温度为15～34℃,冬天应保持在6℃以上,若低于这一温度界限,很容易遭受冻害甚至死亡。抗寒力强的可耐3～4℃低温。在南方,要保证其安全越冬,应注意采取以下几点措施。少施氮肥,多施磷钾肥在花卉入冬前,少施氮肥,多施磷钾肥,增强光照,可增加植物体内的糖分含量,使植物生长健壮,提高抗寒能力。
The majority of indoor foliage plants are native to the low latitude regions of the Americas, with low annual sunshine temperatures, high annual mean temperature, small temperature differences between winter and summer, and low temperatures between day and night, southern Africa and tropical rainforests in Southeast Asia. Therefore, most of them are very cold-resistant, especially sensitive to low-temperature reactions. Generally, the optimum growth temperature is 15-34 ° C and in winter they should be kept above 6 ° C. Below this temperature limit, they are vulnerable to frost damage and even death. Strong resistance to cold 3 ~ 4 ℃ low temperature. In the south, to ensure its safety over winter, should pay attention to the following measures. Less nitrogen fertilizer, more phosphorus and potassium fertilizer Before winter, less nitrogen fertilizer, more phosphorus and potassium fertilizer, enhance light, increase the sugar content of plants, so that plants grow robust and improve the ability of cold resistance.