重瓣向日葵的問題。急!種花。

2008-03-27 3:30 am
重瓣向日葵的資料。
重瓣向日葵的種植方法。
etc.
更新1:

急 種花 種植重瓣向日葵

回答 (3)

2008-04-04 6:40 pm
✔ 最佳答案
向日葵的屬名 Helianthus 英名 Sun Flower。
向日葵為菊科一年生草本植物,可達2一3公尺以上,近年園藝界為了市場需要,已育出矮性品種,株高多在80公分以下。葉片貫而橢圓,互生,全株布滿絨毛。碩大的花朵著生於莖頂,為標準的頭狀花序,中央的管狀花密集排列有如花蕊一般,呈褐色或黃色,周圍的舌狀花呈金黃色,有如太陽的光芒,整朵花的直徑15一25公分,花型有單瓣和重瓣之分,除可供油用及食用外,亦為觀賞用或維護生態景觀之最佳作物。,
向日葵的栽培環境
向日葵嗜好陽光,全日照是最佳栽培環境,否則至少要有四小時以上日照,它才能開出瑰麗的花朵,栽培溫度為21~24℃,以含有豐富有機質的砂質土壤為佳,排水和日照一定要很好,如能含有大量的腐殖質則生長茂盛,根系發達不易倒伏。生長期需要較多的肥料,最好在小苗期施用有機肥料,能增加植株的抗逆性。在花蕾未現前可偏重氮肥,之後要注重磷鉀肥的施用量,這樣向日葵才能生長粗壯、直立不倒。花蕾長成後必須多灌水,來保持土壤濕潤,花才會長得好。播種期約在四月到八月,開花期約在六月到十一月,春秋兩季將種子播種,發芽的適溫在20到30度,而生長適溫15到30度,上面覆土約二至三公分,保持盆土濕潤,靜待出芽待高約十公分左右進行分植,每五寸盆種一株,出芽後即須接受日照,使植株色翠緣而健康。花苞出現時,要定時追加開花肥和增加給水,向日葵就會長得又高又大。



圖片參考:http://i201.photobucket.com/albums/aa187/emage_pro/d9faeb8c.jpg
2008-04-10 3:19 pm
重瓣向日葵的種植方法跟普通的向日葵沒有分別。

重瓣向日葵的樣子應該是這樣的:
http://www.seedman.com/image/tpf138.jpg
2008-03-27 8:47 pm
buy seed for the lst year, start in a small pot or even in a paper cup (the pop cup from mcdonald) keep mositure and sunlight. when it spout or become bigger, move to a bigger pot.
you can also start the seed directly from the garden.
dont worry, it is very very easy to grow.
for your info., when the flower died, dont cut the flower right the way, let the seed (at the middle of the flowers) grow, then you will have many sun flower seeds for the coming year.
sun flower is the annual plant, when the season pass, dig the it out from the ground since it wont come back from the same root. but if seed fell before you trim the died flower, you will still the flower in the next year.


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