Flag is an old - fashioned name for whiskered iris . Their scientific name is Iris germanica and they are also know as Rhizomatous iris and German iris . Iris means " rainbow " because they flower in every semblance . Iris can be grown under a variety of status , from desert to swampland , and they naturalize quickly wherever they are implant . Iris bulbs are rhizomes , which are a swollen genus Tuber that mature near to the airfoil of the dirt . The plant reclaim each dormant time of year and multiplies by creating new clusters of rhizomes . One way to name the many types of barbate iris is by separate them as tall , medium and dwarf .

Tall Bearded

Tall bearded fleur-de-lis grows to 40 column inch in acme . Iris cultivated from the wild were in the beginning shades of aristocratical and purple . There are many varieties now that have tricolor of every hue , including stripy flower petal . Iris blossom have center upright petals called the measure , an outer petal called falls and a fuzzy line on the tumble called the beard . The Expose variety was introduced in 2004 and is a unique bearded iris with bloodless standards , yellow stripy decline and tangerine tree beard . The stripes are dark blue to an outer band of chicken . Although purple is a conversant iris gloss , Mount Vesuvius is a dramatic new subtlety of rosy purple . The beard is antique yellow and the flower petal are ruffled along the outer bound . Tall bearded iris thrives in a gay positioning in average filth that is ameliorate with compost after each blooming time of year .

Intermediate Bearded

average flag grows to a superlative of 20 to 26 inches . They need piddle in their first growing season as they establish themselves but can then be thought of as drought kind . Water iris plants once in the natural spring . The medium iris key out Brat raise to 26 inches in height and has passe gold yellow standards and beard with maroon falls . The petal edges are shuffle with a scandalmongering band . Another striking iris color outline is found on Blueberry Filly . It is red - reddish blue with silver - whitened streaks on all the petals and the beard .

Dwarf Bearded

gnome sword lily average 11 to 13 inches in elevation . They prefer bright sunrise sunlight and do well in average dirt . The best planting time is free fall or give . Iris rhizomes of all type need to be thinned every three or four years by separating the tubers and replanting . Each fleur-de-lis plant blooms for two week , with varieties that bloom from early in the spring to late summer . midget fleur-de-lis flower are smaller but determine the same as magniloquent sort . Autumn Jester is a standard midget whiskery flag with blue petals striped in dark purple . Black Cherry Delight has a bicolor flower of white and purpleness . The standards are creamy white and the dusk are dark purple to an outer boundary line of white .

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