火炬花有什麼顏色的?
火炬花植株健壯,7~8月開花,花色有黃、橙紅、紅等。挺拔的花莖高高擎起火炬般的花序,壯麗可觀。
火炬花是優良庭園花卉,可用於布置多年生混合花境和在建築物前配置,也可叢植於草坪之中或植於假山石旁,用作配景,還可作切花。

火炬花栽後要及時澆水,春、夏季生長旺盛期,每月施肥 1次(ci)。開(kai)花(hua)前(qian)要(yao)澆(jiao)透(tou)水(shui),保(bao)持(chi)土(tu)壤(rang)濕(shi)潤(run)。花(hua)後(hou)可(ke)減(jian)少(shao)澆(jiao)水(shui),初(chu)霜(shuang)後(hou)老(lao)葉(ye)尖(jian)端(duan)變(bian)紅(hong)或(huo)枯(ku)萎(wei),但(dan)仍(reng)保(bao)持(chi)常(chang)綠(lv)。冬(dong)季(ji)用(yong)幹(gan)草(cao)或(huo)肥(fei)土(tu)覆(fu)蓋(gai)地(di)麵(mian)以(yi)防(fang)凍(dong)害(hai)。

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