向日葵花期，向日葵什么季节

植物图片 2021-06-21 15:38

向日葵一般在每年的二月到四月左右播种，按照生长周期来讲，向日葵的花期是在夏季，正好是最为炎热的七月和八月。但是因为播种时间不一致，也有一些在五月或者十月开花。向日葵的花期是可以通过人工干预来延长的，可以采用延缓授粉时间的方式推迟结果时间帮助延长花期，另外还要保证光照充足和温度适宜，控制浇水的量。

1.向日葵的花期

向日葵一般在每年的二月到四月左右播种，从种子的发育和成熟直到开花前后大概需要六十到八十天左右。按照生长周期来讲，向日葵的花期是在夏季，正好是最为炎热的七月和八月。这个时候，向日葵一朵接着一朵地盛开，似在相互催促。

但是，如果有一些向日葵播种比较晚的话，它的花期也会随之推迟。因为向日葵生命力旺盛，一年四季都可以播种，所以它五月或者十月开花，也是比较常见的。

2.向日葵什么季节开花

因为向日葵的种植时间不一致，所以开花的季节也不一致。但是大部分还是会在每年的七八月开花，也就是夏季。另外还有部分在春末夏初或者初秋的季节开放。

3.延长花期的方法

延缓授粉时间：向日葵一般在开始结果之后就凋谢，而如果延迟授粉就可以推迟结果时间。只要在其开花时不要让蜜蜂和蝴蝶等昆虫接近向日葵即可。

保证光照充足：向日葵向阳生长，必须要有充足的光照才能生长得更好。花期更要保证有充足的日照，这样会使它颜色更加鲜艳，开花时间也会相对延长。

控制浇水的量：向日葵本身不喜水，所以花期的时候一定要注意控制浇水的量。浇水太多会使它生长得更快，加快花期的结束。反之则会使得花期相对变长一些。

注意给它保暖：有一些向日葵种得晚，开花时间也会比较晚，这个时候就需要注意给它保暖。温暖的环境会让它开花更持久，温度太低会让植株枯萎凋谢。

专题： 葵花
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