天气预报 > 其他 > 紫罗兰花期是几月到几月
紫罗兰花期是几月到几月
更新时间: 2020-11-19 00:00:00  

紫罗兰花期是4-5月。紫罗兰,长角果圆柱形,长7-8厘米,直径约3毫米,果瓣中脉明显,顶端浅裂;果梗粗壮,长10-15毫米,种子近圆形,直径约2毫米,扁平,深褐色,边缘具有白色膜质的翅,花期4-5月。

紫罗兰喜冷凉的气候,忌燥热。喜通风良好的环境,冬季喜温和气候,但也能耐短暂的-5℃的低温。生长适温白天15-18℃,夜间10℃左右,对土壤要求不严,但在排水良好、中性偏碱的土壤中生长较好,忌酸性土壤。

紫罗兰耐寒不耐阴,怕渍水,它适生于位置较高,在霉雨天气炎热而通风不良时则易受病虫危害,施肥不宜过多,否则对开花不利;光照和通风如果不充分,易患病虫害。

关键词: 紫罗兰 花期

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