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The luck of the iris

机译：虹膜的运气

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Having seen beautiful exhibits of Pacific coast irises staged by Broadleigh Gardens in the 1990s, I was delighted to obtain a packet of Pacific coast iris seed from the Kent Group of the British Iris Society for whom I had been a guest speaker.These hybrids come primarily from three species of American iris - Iris douglasiana, I. innominata and I. tenax. They are beardless irises from northern California, Oregon and Washington forming dense, rhizomatous, evergreen clumps on banks in woodland margins. Where species overlap, you will find naturally occurring hybrids seen in a range of flower colours from pale yellow, orange and pink, to lilac and blue. Clumps have leathery, narrow leaves and are tolerant of a range of soil types, generally acidic or neutral, but they are difficult where you have heavy clay soils and consistently high summer temperatures. In the UK they are hardy, generally H4 (-10 to -5°C), but can be H5 (-15 to -10°C).
机译：看到美丽的太平洋海岸的展品虹膜Broadleigh花园举行的1990年代,我很高兴获得一包太平洋海岸虹膜种子的肯特集团英国虹膜我已经学会一个客人演讲者。美国iris -虹膜douglasiana物种,我。innominata和i tenax。虹膜从北加利福尼亚,俄勒冈州和华盛顿形成致密、地下茎的常绿团在林地银行利润。自然物种重叠,你会发现混合动力车在发生一系列的花颜色淡黄色,橙色和粉色淡紫色和蓝色。叶子和包容各种土壤类型,一般酸性或中性,但它们困难在重粘土土壤和夏季气温高。他们是坚强的,一般H4(-10 - 5°C),但是可以H5(-15到-10°C)。

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