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夏季的高温使许多夏季花卉的开花潜质未能被充分利用,在人们欣赏还意犹未尽时,花就开败了,很是遗憾。其实采用一些方法便可以使它们的花期延长,观赏价值也可进一步提高。整形修剪这是延长花期最常用的方法之一,操作也简单。从盛花中期开始,及时剪掉开败的或观赏价值不高的花穗,但要保留一部分叶片,以改善枝叶生长的营养状况,使植株在夏季依然有能力抽出健壮的枝条和花穗。如月季、扶桑、万寿菊、一串红等经修剪后,花期可延长很久。但有些花卉如鸡冠花、朱顶红等不宜采用此法,修剪反而会使观赏价值降低。
The high temperature in summer has failed to make full use of the flowering potential of many summer flowers. It is a pity that flowers have failed when people appreciate it. In fact, some methods can be used to prolong their flowering period and the ornamental value can be further improved. Trimming This is one of the most common ways to extend the flowering period, and it’s easy to operate. From the mid-flowering season, the cut-off or ornamental flower spikes should be cut off in time. However, some leaves should be kept in order to improve the nutritional status of the branches and leaves and make the plants able to extract robust branches and spikes in summer. Such as rose, hibiscus, marigold, a bunch of red after trimming, the flowering can be extended for a long time. However, some flowers such as Celosia, Hippeastrum, etc. should not be used this method, pruning, but will reduce the ornamental value.