Allium Gladiator with iris...when I was a little girl, my grandmother had purple and white iris like these.  Their name was Wabash, and I really need to find some like these.  Sweet memories of walking with her along the terrace row with the Flower Grower magazine...

Allium Gladiator with iris...when I was a little girl, my grandmother had purple and white iris like these. Their name was Wabash, and I really need to find some like these. Sweet memories of walking with her along the terrace row with the Flower Grower magazine...

Iris 'Queen Of Angels' - A white tall bearded iris with a wash of lilac. Scented - from Claire Austin Hardy Plants {Mercurelli's Garden Design Palette}

Iris 'Queen Of Angels' - A white tall bearded iris with a wash of lilac. Scented - from Claire Austin Hardy Plants {Mercurelli's Garden Design Palette}

Iris germanica 'Immortality' "Bearded Irises will not tolerate "wet feet" (too much water will cause the rhizomes to rot) and require very well-drained soil at all times of the year. Irises are generally heavy feeders and should be fertilized 3 times per year: first in the spring when new growth appears, second right after blooming, and third in the fall. When planting them for the first time or when transplanting, use a no-nitrogen fertilizer such as 0-10-10 worked into the soil."

Iris germanica 'Immortality' "Bearded Irises will not tolerate "wet feet" (too much water will cause the rhizomes to rot) and require very well-drained soil at all times of the year. Irises are generally heavy feeders and should be fertilized 3 times per year: first in the spring when new growth appears, second right after blooming, and third in the fall. When planting them for the first time or when transplanting, use a no-nitrogen fertilizer such as 0-10-10 worked into the soil."

Most gardeners are familiar with classic perennials such as daylilies, peonies, hostas, and iris, but there's a whole host of lesser-known, underused perennials that can add color and interest to your garden. You may have to search for them at your garden center or an online source, but they're all worth the effort. Here are 15 of our favorite underused perennials.

The 15 Most Underused Perennials

Most gardeners are familiar with classic perennials such as daylilies, peonies, hostas, and iris, but there's a whole host of lesser-known, underused perennials that can add color and interest to your garden. You may have to search for them at your garden center or an online source, but they're all worth the effort. Here are 15 of our favorite underused perennials.

Perhaps the most famous white iris, the 'Immortality' Reblooming Bearded Iris is truly angelic! Its extremely wide falls are adorned by butter yellow beards. Blooming once in late spring and then once again in late summer or fall, you'll be happy these amazing blooms come twice a year!

Perhaps the most famous white iris, the 'Immortality' Reblooming Bearded Iris is truly angelic! Its extremely wide falls are adorned by butter yellow beards. Blooming once in late spring and then once again in late summer or fall, you'll be happy these amazing blooms come twice a year!

Georgia O’Keeffe White Iris, No. 7 (White Iris # 7), 1957 © 2009 by Georgia O’Keeffe Museum / © Georgia O  via

Georgia O’Keeffe White Iris, No. 7 (White Iris # 7), 1957 © 2009 by Georgia O’Keeffe Museum / © Georgia O via

WHITE IRIS - Getting married in March? See our seasonal flowers board for a full list of flowers that are available for florists to buy in March for a Spring wedding. Whether you are planning a romantic, wild and natural bouquet or bright and vibrant table centrepieces - our seasonal guide boards cover every possibility for every month be it Winter, Autumn or Summer! xx

WHITE IRIS - Getting married in March? See our seasonal flowers board for a full list of flowers that are available for florists to buy in March for a Spring wedding. Whether you are planning a romantic, wild and natural bouquet or bright and vibrant table centrepieces - our seasonal guide boards cover every possibility for every month be it Winter, Autumn or Summer! xx

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