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}} ''Iris graeberiana'' is a species in the genus ''Iris'', it is also in the subgenus of Scorpiris. It is a bulbous perennial. It was named after Paul Graeber (a plant collector who also collected ''Iris hoogiana'' and ''Tulipa ostrowskiana'' for the Dutch Van Tubergen company).〔(【引用サイトリンク】url=http://rareplants.co.uk/product.asp?P_ID=745&strPageHistory=related )〕 It was first published in Botanical Magazine 167: t. 126 by Sealy in 1950.〔(【引用サイトリンク】url=http://www.ipni.org/ipni/idPlantNameSearch.do?id=438659-1 )〕 ''Iris graeberiana'' is an accepted name by the RHS.〔(【引用サイトリンク】url=https://www.rhs.org.uk/Plants/9262/Iris-graeberiana/Details )〕 It is hardy to USDA Zone 5-8.〔(【引用サイトリンク】url=http://www.signa.org/index.pl?Iris-graeberiana )〕 It can be seen growing in ''Le Grand Clos'' botanical garden in Bourgueil, France.〔(【引用サイトリンク】url=http://irisbotanique.over-blog.com/article-le-grand-clos-botanique-garden-73882267.html )〕 ==Habit== In late spring,〔(April).〔(【引用サイトリンク】url=http://www.backyardgardener.com/gardening/perennial/Iris.html )〕 It has between 4-6 flowers per stem and reaches a maximum height of 45cm (18") tall. It has pale silvery mauve flowers.〔 It also comes in blueish-lavender, or blue-violet shades.〔 The flowers are 6-8cm (2.5-3in) wide with a wavy,〔 white crest on each fall.〔 Which is surrounded by a pale, boldly veined zone.〔 The white margined leaves, have glossy mid-green tops, but with greyish green bottoms, which are scattered along the stem.〔 The leaves grow to approximately 20cm tall at flowering time, then they extend to twice this. They are between 1.5-3.5cm wide.〔(【引用サイトリンク】 url=http://encyclopaedia.alpinegardensociety.net/plants/Iris/graeberiana )〕 It is known as one of the more vigorous species,〔 therefore is easier to grow the others in the subgenus.〔 They are best grown in well drained soils 〔(【引用サイトリンク】url=https://www.99roots.com/en/plants/flag-p38180 )〕 in open, stony places or an Alpine house, but some growers recommend outside culture if sheltered from heavy summer rains. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Iris graeberiana」の詳細全文を読む スポンサード リンク
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