Blue Flowers or Flower Parts

Medium to deep blue falls and standards with the falls being accented by contrasting gold crests at their base are produced in early to midseason, or March to April, atop 30-36" high stems. Sinfonietta Louisiana Iris has been highly popular since its introduction and was awarded an Honorable Mention in 1990 and the Award of Garden Merit in 1992 by the American Iris Society. Louisiana Irises are easy and adaptable, rhizomatous perennials with fans of deep green sword-like foliage and seem as at home in standing water as they do in average moist garden soils. Remember that these plants do most of their growing in fall and winter and so this is when they should be fed and fall is also a great time to divide plants if desired. Provide a full to mostly sunny site for optimum vigor and flowering. Item# 13339

2-3" long, light bluish purple, slightly flaring tubular flowers are produced in large hanging clusters designed for hummingbird pollination. Sky King is a reliably free flowering selection on a vigorous growing upright to spreading, naturally evergreen tropical shrub. This miniature cousin of the Angel's Trumpet is easily enjoyed as a container plant where not hardy. Provide good drainage and fertile, average moist soil in partial to filtered sun for the best results. Iochroma, Tubeflower, or Mini Angel's Trumpets flower on new growth so keep them growing and healthy for and endless display. Item# 790

Rounded clusters of star-shaped sky blue flowers adorn the ends of sturdy stems in spring. Starstruck Bluestar or Amsonia develops into a neat rounded mound of deep green foliage to about 20" high once flowering is complete. This is an easy and reliable clump forming perennial that is tolerant of wet, moist, to average moist sites and that will only get better with age. Bluestars are pest, disease, and deer resistant perennials that are considered to be somewhat drought resistant once well-established. Images courtesy of Walter's Gardens, Inc., all rights reserved. Item# 12110

Huge round clusters composed of extra large bell-shaped deep violet-blue flowers held on sturdy stems atop the narrow strap-like medium green foliage in late spring to early summer and potentially into fall on well-established clumps. Stevie's Wonder Lily of the Nile or Agapanthus is a vigorous, clump-forming perennial with a tropical look but this cultivar has proven to have excellent hardiness into zone 7. The flowering spikes are typically 2-3' high in areas that experience hardy winter freezes (zone 7-8) but they are reported to reach up to 6' high in zone 9 with reports that the flower clusters can reach near volleyball size! The flowers of Agapanthus attract bees, butterflies, and hummingbirds. Provide Stevie's Wonder Lily of the Nile a full to partly sunny site in a well-drained, average moist, fertile soil for optimum vigor and flowering. Makes an easy and low-maintenance container plant where not hardy. May be fully winter deciduous. Item# 12467

6" wide rounded clusters of 1" wide deep blue-purple to dark purple trumpet shaped flowers are produced atop sturdy 3' high stalks in summer that attract bees, butterflies, and hummingbirds. Though recent competition has increased when it comes to reliably cold hardy Agapanthus cultivars, Storm Cloud is still considered to be one of the most reliable, naturally winter dormant cultivars but it will benefit from a breathable mulch in any area that experiences freezing temperatures for extended periods. Somewhat drought resistant once well-established but generally prefers an average moist, fertile, well-drained soil in a full to mostly sunny site. Deer and rabbit resistant and moderately salt tolerant. Makes an easy and low maintenance container plant where not hardy. Item# 1144

Dense rounded clusters of starry periwinkle blue flowers are produced in late spring to early summer atop the fine-textured deep green foliage that transforms to a deep golden yellow in fall. String Theory Blue Star, a hybrid of or selection of Amsonia hubrichtii, has all of the wonderful traits of Arkansas Blue Star but with a more refined compact habit. This is a clump-forming, long-lived, herbaceous native perennial with an almost formal habit at maturity reaching about 18-24"H x 30-36"W. It can be utilized as an informal hedge or backdrop and will look great paired with native grasses in fall. This Proven Winners© selection is tough and easy, low-maintenance, sunloving, heat tolerant, and deer and rabbit resistant. The flowers of the Blue Stars attract larger bees, butterflies, hummingbirds, and hummingbird moths. Images courtesy of Walter's Gardens, Inc., all rights reserved. Item# 12891

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Suwanne Blue-Eyed Grass produces a profusion of sky-blue, 3/4" wide miniature iris-like flowers for weeks in spring. A clump forming Iris-like native perennial, Suwanne is considered one of the best Blue-Eyed Grasses for gardens with its long flowering season and mannerly habit. Suitable for sun or light shade. Item# 10589

Often throughout summer, small, fragrant beautiful bell-shaped nearly white to blue flowers with gracefully recurving 'petals' (in Clematis it is the large colorful sepals that we often most enjoy) of light blue, blue, or purple. Grow the Swamp Leather Flower as a small perennial herbaceous vine that may top out at 5' but can reach 9' high. It can be cut back to 1-2' in later winter after the buds have begun to swell. Item# 10224.

Royal purple, 1/2" blooms that are edged in white lace, are born in drooping clusters from spring or early summer until frost and attract butterflies and bees. The nectar rich flowers are followed by grape-like clusters of 1/2" golden berries giving it the name of 'Golden Dewdrop'. Sweet Memories Purple Sky Flower is naturally a large multi-stemmed tropical shrub and can be trained into tree standards or use it as a hedge or screen in mild winter climates. In mild winters in zones 8B and 9, well-established plants may act as a die-back perennials or they can easily be overwintered as a container plants. Item# 579

Clusters of deep blue 2" long pointed buds open to long-lasting tubular deep blue flowers that eventually fade to purplish-blue with the show beginning in early to midsummer and continuing into fall. True Blue Gentian is a hardy clump-forming perennial that develops into a well-branched 18-24"H x 12-18"W plant. A Darrell Probst is an open pollinated hybrid of Gentiana makinoi that is reported to be hardy into zone 8. True Blue Gentian does best in a full sun in areas with cooler summers and will likely need part shade where summers are hot. Provide it with a well-drained, average moist soil for optimum vigor and flowering. Makes a long-lasting cutflower as well as true blue addition to the garden and landscape. Image courtesy of AG3, Inc., all rights reserved. Item# 12286

Large intense deep blue flowers emerge from tall spikes beginning in spring and continuing throughout the growing season and into fall. Van Remsen Salvia, an Anise Sage or chance hybrid, is an excellent nectar plant for hummingbirds and may also be visited by larger butterflies. Unlike many of the Salvia guaranitica selections available Van Remsen is a clump forming vigorous growing perennial that can hit 7' high bringing the flowers closer to the hummingbirds and towering over most other garden perennials. This cultivar was discovered in the garden of James Van Remsen of Louisiana and was named and introduced by Salvia guru Richard Dufresne of North Carolina. Provide a full to mostly sunny location in an average moist, well-drained soil for optimum vigor and flowering. Item# 12118

Large creamy yellow, white, and green foliage acts as the backdrop for large hanging clusters of 3" wide, sky blue trumpet shaped flowers that are produced on new growth throughout the summer and into fall. The Variegated Blue Sky Vine is a vigorous twining tropical vine that revels in the warmth of summer and this form appears to be just as vigorous and sun loving as the solid green form. Evergreen in frost free locations, establish in spring once the danger of frost has past as a die-back perennial vine in zones 8-9, or it can easily be maintained as a container plant where not hardy. Item# 1234

A rare and unusual evergreen hydrangea-like shrub with deep green quilted foliage which is topped by clusters of blue blooms from summer to fall. Easy to grow and an excellent choice for shaded gardens. Item# 9312

Large rounded clusters of flowers (sterile florets) in deep rosy pink or medium blue-purple, depending on your soil's acidity and the availibilty of aluminum, adorn the tidy compact well-branched plants with strong sturdy stems and dark green healthy foliage and are produced from summer to fall. Wee Bit Giddy® Bigleaf Hydrangea is a dwarf and compact, has good cold hardiness, and is a repeat flowering mophead that flowers both on this year's and last year's growth. Its tidy rounded, 2' high by 2 -1/2' wide size make it well suited for use in both containers and in gardens with limited space but it is no less useful in gardens and landscapes providing summer to fall color. As with other Bigleaf Hydrangeas, provide this Proven Winners® Color Choice® selection with a moist, well-drained, fertile soil in an area that receives morning sun with shade or filtered shade during the hottest portion of the day in areas with hot summer climates. In cooler climates Bigleaf Hydrangeas can tolerate full to mostly sunny sites. Some direct sunlight, preferably >4 hours per day, is needed for good bud and flower production. Photo courtesy of Proven Winners - www.provenwinners.com, all rights reserved. Item# 12911

Large rounded clusters of flowers (sterile florets) in deeply saturated shades of rosy red or blue-purple, depending on your soil's acidity and the availibilty of aluminum, adorn the tidy compact well-branched plants with dark green healthy foliage from summer to fall. Wee Bit Grumpy® Bigleaf Hydrangea is a dwarf and compact, has good cold hardiness, and is a repeat flowering mophead that flowers both on this year's and last year's growth. Its tidy rounded, 2' high by 2 -1/2' wide size make it well suited for use in both containers and in gardens with limited space but it is no less useful in gardens and landscapes providing summer to fall color. As with other Bigleaf Hydrangeas, provide this Proven Winners® Color Choice® selection with a moist, well-drained, fertile soil in an area that receives morning sun with shade or filtered shade during the hottest portion of the day in areas with hot summer climates. In cooler climates Bigleaf Hydrangeas can tolerate full to mostly sunny sites. Some direct sunlight, preferably >4 hours per day, is needed for good bud and flower production. Photo courtesy of Proven Winners - www.provenwinners.com, all rights reserved. Item# 12910

Only one of two Amsonia species to receive a 5-star rating in the Chicago Botanic Gardens trials! Showy clusters of light blue star-shaped 1" wide flowers are produced in spring atop sturdy stems cloaked in dark green willow-like foliage. The Willowleaf Eastern Bluestar has the same basic habit and growth requirements of the more common Eastern Bluestar, Amsonia tabernaemontana var. tabernaemontana, but with larger showier flower clusters that seem to cover the plant, a neat dense vase-shaped habit, and clean disease resistant foliage. An easy to grow, clump-forming native perennial that is tolerant of wet to average moist soils preferring a full to mostly sunny site in the garden and landscape. The flowers of Bluestars attract butterflies and hummingbird moths. Images courtesy of North Creek Nurseries, all rights reserved. Item# 11945

Light blue narrow rays surround the eye of contrasting yellow disc flowers sit atop the neat mounds of foliage beginning in late summer and continuing into fall. The nectar rich flowers attract a variety of smaller pollinators. Wood's Light Blue New York Aster, a selection of Symphyotrichum novi-belgii or Aster novi-belgii, is a 8-12" x 8-12" compact selection of the species that is a good choice as a replacement for fall mums and can be enjoyed as both a container plant as well as near the front of the border in the garden and landscape. Provide a full to partly shaded site in an average moist, average to well-drained, fertile soil for optimum vigor and flowering. Caterpillar host: Field Crescent, Pearl Crescent, Texan Crescent, Roadside Checkerspot, Hoffman's Checkerspot, and American Lady. Images courtesy of North Creek Nurseries, all rights reserved. Item# 13151

A rare and more robust Evergreen Chinese Hydrangea with larger leaves, thick sturdy stems, and larger individual flowers creating larger clusters of the unusual vivid blue blooms.  Easy to grow and an excellent choice for shaded gardens. Item # 9317.