Blue Flowers or Flower Parts

All Summer Beauty is right! The large rounded clusters of pink, blue, or even purple flowers are born in spring as well as all summer as this Hydrangea produces flowers on new wood as well as old. Compact growth habit. Hydrangeas are easy to grow deciduous shrubs that prefer partly shaded areas of the garden with a rich, moist soil. Flower color is dependent on soil pH. Item# 9758.

Clusters of large 1-1/2" wide 3-petaled amethyst flowers sit atop sturdy stems beginning in late spring or early summer and continuing well into fall. Amethyst Kiss™ Spiderwort was selected not only for its large showy blue flowers but also for its exceptional flower power! Spiderwort is a tough and easy, no care perennial addition to the garden, landscape, or as a container plant. The flower clusters emerge from masses of arching medium green narrow foliage on this clump forming herbaceous perennial. Flowers attract bees, butterflies, and other garden beneficials. Prefers a sunny position and its adaptable to most average moist soils. Images courtesy of Walter's Gardens, Inc., all rights reserved. Item# 11937

Light clear blue, 2" tubular blooms are borne on tall spikes from Spring to Fall on this vigorous perennial. Rich green glossy foliage and an easy and reliable perennial for full to mostly sunny sites in the garden. Argentine Skies Salvia, an Anise Sage, is excellent for hummingbirds and larger butterflies providing a near continuous procession of nectar rich flowers throughout the growing season. Item# 9948

The 2011 Perennial Plant of the Year! Arkansas Blue Star provides three seasons of interest with starry light-blue to nearly white flowers in spring, soft-textured narrow medium green foliage in summer, and wonderful golden yellow, orange, and chartreuse fall color. A sun loving and heat tolerant reliable perennial that is mannerly enough to grace any garden. Item# 9715.

Clusters of button-like purple-blue buds open to frilly blue mistflower-like blossoms flowering from spring to fall on this new heat tolerant Ageratum. Artist^® Blue is a new line that doesn't fade out once the heat of summer arrives and once a flower cluster has begun to fade a new set of buds are already growing to to take its place slowly building into a mass of foliage and flowers that attract smaller pollinators throughout the growing season. Provide a full to mostly sunny site in an average moist well-drained fertile soil for optimum vigor and flowering. Use Artist^® Blue Ageratum as specimen container plants as well as in mixed container gardens or in the garden and landscape. These Ageratums have been a standout in trials as the Dallas Arboretum, flowering continuously from early spring to early fall, as well as being a top performer in trials at Ohio State and Mississippi State. Item# 12193

The large periwinkle star-shaped flowers open from balloon shaped buds look as though one flower was neatly tucked inside the other. The Astra Double Blue Balloon flower is a clump forming taprooted perennial that produces more and more flowering stems as the plant ages. They begin to flower in about mid summer and continue nearly until fall. Astra Double Blue is a more compact 2' x 2' growing variety that can reach about 30" high and also produces purple and yellow fall color. It was also one of the top-rated cultivars from the Chicago Botanic Garden's trials receiving 4 out of 4 stars. An easy, low maintenance, and conversation starting perennial for the garden and landscape.  Item# 11631

The medium pink balloon-shaped buds burst open to nicely contrasting light pink star-shaped flowers with darker pink veining are produced over an extended period from late spring until fall. Astra Pink Balloon Flower is a dwarf compact selection that grows to about 8-12" high and 6-8" wide making it a choice plant for containers or as a long-lived garden and landscape addition. The compact habit helps this cultivar start flowering sooner than its larger growing cousins. Balloon Flowers make long-lived low maintenance additions and the interesting buds and large flowers are sure to make this a conversation piece. Purple and yellow fall color on a taprooted clump forming perennial. Images courtesy of Walter's Gardens, all rights reserved. Item# 11632

One of the most amazing Hydrangea's as each flower petal is slightly cupped producing a much different effect as the large, long lasting flower clusters of deep blue or pink emerge in late spring. A must for any Hydrangea lover and a beautiful cut flower! Ayesha is truly one of our favorites! According to Dr. Michael Dirr it may also be sold under the names Silver Slipper and Uzu Ajisai. item # 9379.

Large spikes of deep blue, tubular flowers are born in summer, late summer, and sometimes into fall on this clump forming native perennial wildflower. Under natural conditions Azure Blue Sage produces tall arching stems that terminate into large, often branching, spikes of flowers that are quite suited to use by Hummingbirds and butterflies. Great at the back of the garden or in natural settings. Item# 10460.

The Bird of Paradise produces exotic and unusual, tropical looking orange, blue, and purple bird-like flowers that are perfectly designed to allow Sunbirds to perch on the tips of the blue petals which opens the flower and provides access to their rich nectar. Here in the US we get to enjoy Hummingbirds enjoying their bounty. The large glossy blue green foliage of the Bird of Paradise is arranged in attractive symmetrical fans that provide architectural interest even when the plants are not in flower. The Bird of Paradise is an easily maintained evergreen container specimen or grow it in the ground where hardy. Item# 1214.

Beautiful, deep blue flowers emerge from spikes of black calyxes on this exquisite perennial Salvia all summer and fall against a backdrop of rich deep green foliage. Black and Blue Salvia, an Anise Sage, is a highly sought after nectar plant for hummingbirds and may also be visited by larger butterflies. This easy and reliable perennial Salvia slowly spreads by rhizomes to create a tall groundcover like effect. Provide a full to mostly sunny position in an average to well-drained moderately fertile soil for maximum vigor and flower production. Item# 808

Blaumeise is considered by many to be one of the best of the Lacecap Hydrangeas producing very large flower clusters that are surrounded by some of the most deeply colored and themselves very large, showy sterile florets. In acidic soils the flowers are a deep royal blue and in alkaline soils the flowers are a dark rosy red. The foliage is large and shiny and is held on stout sturdy stems. The only drawback for this amazing Hydrangea cultivar is that it has limited cold hardiness and is will probably be best grown in zones 8 and warmer. An eastern or partially shaded southern exposure might be optimum even then. Item# 10731.

This award winning Agastache produces tall spikes of deep purplish blue tubular flowers held on sturdy stems atop rich deep green fragrant foliage. The flower show lasts for an exceptionally long period and begins in early summer with butterflies, bees, and hummingbirds all showing up for the feast. A drought resistant perennial preferring well drained mostly sunny sites, Blue Boa Agastache requires minimal care and provides big rewards. Photo courtesy of TERRA NOVA® Nurseries, Inc. www.terranovanurseries.com. Item# 10918.

From spring to fall the Blue Butterfly Bush produces large clusters of dainty, blue flowers that very much resemble little butterflies and thus the name. This is a tropical plant that can be grown as a root hardy perennial in the northern portions of its range (zone 9 and warmer) otherwise it makes an easy to grow container plant. In its native habitat it can reach 10-12'H but more typically it is kept as a 4-6'H shrub. The long canes lend it to use as an espalier. Item# 10681

Sturdy spikes of brilliant blue to lavender-blue, two-lipped flowers are borne for an exceptionally long period in late summer and into fall on this hardy, native, clump-forming perennial. Suitable for consistently moist to wet soils. The Blue Cardinal Flower is enjoyed by hummingbirds, butterflies, and an variety of other pollinators as well as making a beautiful cut flower. Images courtesy of North Creek Nurseries. Item# 10159.

Boasting bigger blue and more beautiful whorled clusters of nectar rich tubular flowers in tall wands that extend well above the gray-green foliage and last for weeks in summer. Blue Empire™ Bluebeard or Caryopteris was selected for its noticeably larger and longer lasting clusters of flowers as well as for its nicely compact habit further highlighting the tall candles of flower clusters. In zones 5-6 Bluebeard tends to act more like a clump forming die-back perennial and becomes more shrub-like where winters are milder, although, it benefits from hard late winter or early spring pruning since it flowers on new growth. Somewhat drought resistant once well-established and prefers a sunny site in a well-drained soil for optimum vigor and flowering. Images courtesy of North Creek Nurseries, all rights reserved. Item# 12248

Masses of dense blue spikes of fragrant, tubular flowers are held above the licorice scented, rich green foliage in summer on this highly sought after Agastache. The nectar rich flowers of Blue Fortune Agastache attract hordes of native pollinators and other beneficials to the garden. The beautiful form, fragrance, and flower power, and proven performance of this Agastache have made it a hit in gardens across the US. Use Blue Fortune in mass at the back of the border or in small specimen groupings to make a splash of long lasting color. Item# 10882.

The Blue Glory Vine produces 2-1/2" wide purple trumpets with yellow throats that are produced freely from spring to fall. A mounding and upright to spreading perennial to small (3-4'H) rambling climber, it is one of our favorite root hardy perennials for adding purple to a semi-shady area of the garden or in containers and it has excellent flower power. The Blue Glory Vine is happy in light shade to partial sun conditions but seems to prefer midday to afternoon shade in hot summer climates. It makes an easy container plant where not hardy. Item# 327

With some of the deepest blue flowers of any Amsonia and a consistently compact habit, Blue Ice has become one of the most popular Bluestar cultivars on the market. The clusters of deep blue, starry flowers open from deep violet buds and will be sure to brighten any spring garden. Yellow fall color adds to its interest. Bluestars are pest, disease, and deer resistant perennials that are considered to be somewhat drought resistant once well-established. Item# 10652.

Large dense fragrant flower spikes to 12" long are composed of many hundreds of small orange-eyed flowers that open lavender and deepen to dark violet and indigo and are held atop a compact mound of blue-green foliage. The honey-mead like scented, nectar rich flowers of Blue Knight Butterfly Bush or Buddleia are adored by a host of pollinators and garden beneficials including butterflies, bees, hummingbirds, and more! Provide a full to mostly sunny location in well-drained average moist soils for optimum health and flowering. Blue Knight is a Walter's Gardens introduction and is part of the Monarch® Butterfly Bush series. Images courtesy of Walter's Gardens, Inc., all rights reserved. Item# 11694

Flat topped clusters of bluish-purple Ageratum-like flowers are born atop sturdy stems in summer and sometimes into fall. Blue Mistflower is a rhizomatous colonizing native perennial that may be best suited to naturalistic settings or among larger growing plants as a tall groundcover. Excellent for pollinators, particularly native bees. Item# 10458.