Blue Flowers or Flower Parts

Tall sturdy branching spikes adorned with tubular, two-lipped, pale sky blue flowers with a slightly darker blue hood are produced from spring or early summer into fall attracting bees, butterflies, and hummingbirds. African Sky Salvia is a vigorous, freely flowering, clump-forming, deer and drought resistant, tropical, shrubby perennial with medium green, rough, fragrant foliage perfectly suited to hot sunny sites in well-drained soils. It can be even be grown as a clipped hedge in freeze free, tropical locations. Use African Sky Salvia in containers for an easy care, pollinator attracting plant with a long season of flowering. This is quite different from the similarly named, spring and fall flowering Salvia uliginosa 'African Skies', a selection of Bog Sage. Item# 12552

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.

Spikes of light clear blue, 2" long, nectar-rich, tubular flowers are held against a foil of medium to deep green quilted, anise-scented foliage and are produced from spring into fall attracting hummingbirds and other pollinators. Argentina Skies Salvia or Anise Sage, a selection of Salvia guaranitica or now S. coerulea, is a vigorous rhizomatous and tuberous perennial Salvia slowly developing into a tall groundcover-like mass of upright stems, foliage, and flowers. Provide a full sun to partially shaded site in a rich, moist to average moist, fertile soil with average or better drainage for optimum vigor and flowering. 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.

Masses of 1" wide, bluish purple daisies with a yellow-eye absolutely cover these plants for weeks in late summer and fall attracting bees and other smaller pollinators. The Aromatic Aster, Symphyotrichum oblongifolius, is a low mounding perennial that develops into a compact shrub-like plant by flowering time. Excellent fall color for the garden as well as drought tolerance and pest and disease resistance make this an excellent addition to the perennial or wildflower border as well as for additions to low maintenance landscapes. Provide a full to mostly sunny site in an average moist, well-drained soil. Item# 10075

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

The large periwinkle blue semi-double star-shaped flowers open from balloon shaped buds throughout the summer months. Astra Semi-Double Blue Balloon Flower is a dwarf and compact clump forming taprooted herbaceous perennial that produces more and more flowering stems as the plants age. This dwarf seed grown strain tops out at just 8-12" high making for an easy and long flowering container specimen or a colorful conversation starting perennial for the sunny garden and landscape. Ballon Flowers do best in full to mostly sunny, average moist, well-drained, fertile soils. Images courtesy of Ball Horticulture, Inc., all rights reserved. Item# 12314

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.

2018 Best of the Best Award at the UGA Trial Gardens! The deep indigo tubular flowers emerge from whorls of dark colored calyxes adorning tall dark spikes that are held above the rich green foliage and are produced from late spring or early summer to frost. Big Blue Salvia, a seed grown strain with the same parentage of and is an improvement upon the award winning Indigo Spires, develops into a full bushy herbaceous perennial growing to about 2-3' high by 2' wide. The summerlong display of flowers attracts a myriad of pollinators and highly popular with larger native bees. Use Big Blue Salvia at the back of the border, in larger containers, as well as in the garden and landscape. Provide a full to mostly sunny site in a fertile, average moist soil with average or better drainage for optimum vigor and continuous flowering. Images courtesy of Ball Horticulture, Inc., all rights reserved. Item# 12876

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 maintained as a 4-6'H shrub. The long canes lend it to use as an espalier. Item# 10681

Large clusters of lightly fragrant, pale blue flowers held on 12-14" high stems are produced in early spring to early summer, depending on your zone, attracting mainly butterflies, long-tongued bees, and sphinx and hummingbird moths. Blue Buttons' Lapham's Phlox, is a selection of Phlox laphamii, a.k.a. P. divaricata var. laphamii, that is reported to have a slightly longer flowering season, petals that are without clefts and are rounded to pointed, wider foliage and may have a slight preference for shade above that of typical Woodland Phlox. This is an evergreen to semi-evergreen, slowly spreading native perennial that makes a choice groundcover in average moist to moist, well-drained, fertile soils preferably rich in organic matter. Provide shade during the heat of the day such as morning sun, filtered shade, and deciduous shade seems to be about perfect as they receive sunlight during the majority of the growing season but are shaded by the time summer arrives. Item# 12878

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

The large, 3-4'' wide, blue to lavender, Hibiscus-like flowers are produced throughout the warmer months of the year to year-round under warm frost free conditions. The Blue Hibiscus, Alyogyne huegelii, is an upright to rounded, naturally evergreen, Australian native shrub that is heat and sunloving and is somewhat drought resistant once well-established. It is fairly adaptable to soil types and moisture as long as they are provided with excellent drainage, otherwise it tends to be fairly short-lived. Full sun is optimal and it can be enjoyed both as a container plant as well as making a nice specimen or informal hedge in the garden and landscape. It is sometimes trained as a tree standard to good effect. Plants tend to be somewhat open and if foliage becomes too sparse or the plants too larger they can be pruned back fairly hard and will put out vigorous new growth and some sources suggest that it flowers best after a good pruning. Item# 12881

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.