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有些花卉,如倒挂金钟、君子兰、小苍兰、风信子、马蹄莲、仙客来、郁金香、水仙、四季海棠、天竺葵等,在夏季呈现休眠或半休眠状态,我们称之为夏眠花卉。引起夏眠的主要原因是高温。当气温升至30℃以上时,这些花卉生长受到抑制(属于地中海气候型花卉)。花卉在夏眠期间生长活动十分微弱,代谢水平低下,消耗养分也少。因此,应从其生理需要出发,在夏季养护管理上与其它花卉有所不同。
Some flowers, such as fuchsias, clivia, freesia, hyacinth, calla lily, cyclamen, tulips, narcissus, begonia, geranium, etc., in the summer dormancy or semi-dormant state, which we call summer flowers. The main cause of hypnosis is high temperature. When the temperature rises above 30 ℃, the growth of these flowers is inhibited (belonging to the Mediterranean climatic flowers). Flower growth activity during the hibernation is very weak, low levels of metabolism, nutrient consumption is also less. Therefore, should be based on their physiological needs, conservation and other summer flowers and other flowers are different.