重瓣太阳花重瓣花后不结籽常用扦插分株繁殖

植物图片 2019-09-06 10:04

重瓣的太阳花是人工杂交出来的新品种，大多都是只开花不结籽的，但具体的要分宿根还是非宿根，宿根就是持续生长超过两年，且不断生长开花的品种，如果是宿根的重瓣太阳花是不会结籽的。那重瓣太阳花怎么繁殖呢?通常使用扦插和分株这两种繁殖方法。

一、重瓣太阳花的繁殖方法

1、扦插繁殖

重瓣太阳花通常都用扦插繁殖，适合扦插的时间在夏天。在重瓣太阳花的母株上，剪下一段枝条或萎蔫的茎当作插条，然后将其插入疏松的土壤中保持湿度，在插条成活之后就能够长出花蕾。

2、分株繁殖

分株繁殖是在夏天进行，选择生长比较良好的重瓣太阳花，然后将其根部从土壤中挖出，并分成几段小植株，然后将其分别进行移栽即可。在栽种完毕后浇上足够的定根水，通常1～2周就会开始生长了。知道了重瓣太阳花怎么繁殖，其养护技巧也不能忘。

二、重瓣太阳花的养护技巧

1、适量浇水

重瓣太阳花喜欢湿润的生长环境，在春秋两季可以每隔2～3天浇一次水，而夏天的时候最好每天都浇一次水，冬天保持土壤干润即可，通常是1～2周浇一次水。

2、光照适合

重瓣太阳花的名字里面有太阳二字，自然是喜爱阳光的，在其生长期间要给它足够的光照，很容易就会长的枝繁叶茂、花开满盆的，但夏天的时候要避免强光直射。如果光照不足，则会造成植株徒长不开花。

3、把控气温

适合重瓣太阳花生长的气温在18～24℃左右，夏天如果气温过高，最好将太阳花移到阴凉通风的地方度夏。而冬天的时候最好将气温保持在5℃以上，不然可能会造成冻害。

4、合理施肥

重瓣太阳花不用过多的肥料也能够生长的很好，如果想要它生长的更快，可以每隔半个月给它施加一次肥料，反生长期间以氮肥为主，但是在花期之前要增施磷钾肥，促进植株开花。

三、养重瓣太阳花需注意的事项

1、虫害防治

太阳花的生命力是比较顽强的，通常很少有虫害问题，不过养护不当的话也可能遭受虫害。常见的虫害为蚜虫，它会吸食植株幼嫩部位的汁液，在发现后除了人工捕杀之外，还可以喷洒吡虫啉溶液进行防治。

2、一盆多个品种

在种植重瓣太阳花的时候，可以在一个盆中栽种许多不同的品种，这样在植株开花后，颜色就不会那么单调，五彩斑斓的样子才具有更高的观赏价值。

看完上面的内容，相信大家应该知道重瓣太阳花的繁殖方法了，重瓣太阳花通常是不会结籽的，家庭栽种的时候常用扦插繁殖噢！

专题： 太阳花
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