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Blue Flowers or Flower Parts

Find plants with blue flowers or flower parts. An easy way to color coordinate for your garden, containers, and landscapes.

 

African Sky Salvia

Salvia ‘African Sky’ (S. chamelaeagnea x S. scabra)  

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

 

Grows To: 30-36"H x 18-24"W
Outdoor Light: Full sun, Mostly sunny
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
US$9.99
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All Summer Beauty Big Leaf Hydrangea, French Hydrangea

Hydrangea macrophylla 'All Summer Beauty'  

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.

Grows To: 4-5'H x 4-6'W
Outdoor Light: Part shade, Morning sun, Filtered sun, Full sun in cool summer climates
4.5 inch Pot / 20 fl.oz. / 591 ml
Currently In Stock: 0
US$14.99
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Argentina Skies Salvia, Anise Sage, Brazilian Sage

Salvia guaranitica 'Argentina Skies', S. coerulea  

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

Grows To: 36-48''H x 18-24''W
Outdoor Light: Full sun, Mostly sunny, Part shade, Part sun
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
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Argentina Skies Salvia, Anise Sage, Brazilian Sage

Salvia guaranitica 'Argentina Skies', S. coerulea  

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# 13354

Grows To: 36-48''H x 18-24''W
Outdoor Light: Full sun, Mostly sunny, Part shade, Part sun
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
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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.

Grows To: 30-40"H x 2-3
Outdoor Light: Full sun, Mostly sunny, Part shade, Part sun
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
US$12.99
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Aromatic Aster, Prairie Aster

Symphyotrichum oblongifolium, Aster oblongifolius  

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.Caterpillar host: Field Crescent, Pearl Crescent, Texan Crescent, Roadside Checkerspot, Hoffman's Checkerspot, and American Lady. Item# 10075

Grows To: 24-36"H x 36-48"W
Outdoor Light: Full sun
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
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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.

Grows To: 4-5'H x 5-6'W
Outdoor Light: Part shade, Morning sun, Filtered sun, Full sun in cool summer climates
4.5 inch Pot / 20 fl.oz. / 591 ml
Currently In Stock: 0
US$17.99
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Spikes of 1" long, hooded, tubular, dark blue-violet flowers with a white bee-guide on the lower lip are produced beginning in about midspring and continuing into midsummer attracting mainly bees, occasional butterflies, and potentially hummingbirds. Barbat or Barbed Skullcap, Scutellaria barbata, is a clump-forming, herbaceous perennial growing to about 12-18" high and is cloaked in medium to deep green foliage. Provide a moist to average moist, fertile soil in a full sun to partly shaded site for optimum vigor and flowering. May reseed on exposed soils. Item# 13196

Grows To: 12-18"H x 12-18"W space about 12" apart
Outdoor Light: Full sun, Mostly sunny, Part shade
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 12
US$14.99

Beelicious® Purple Agastache, Giant Hyssop

Agastache 'Agapd'  PP30614, PBR

The dense purple to reddish purple spikes are adorned with nectar rich, blue, short-tubular flowers and are produced from late spring to fall attracting a variety of pollinators including bees, butterflies, and low flying hummingbirds. Beelicious® Purple Agastache is a small herbaceous perennial selected for its rich green fragrant foliage, shorter more compact densely branching habit, large flower spikes, as well as summerlong flower power. It is somewhat reminiscent of Black Adder but in a more compact size that is better suited to small to medium sized container gardens as well as a long flowering addition to the sunny garden or landscape. Provide a full to mostly sunny location in a well-drained sandy soil for optimum vigor and flowering as well as the plant's longevity. Image courtesy of Concept Plants, all rights reserved. Item# 13387

Grows To: 16"H x 12"W space about 12" apart
Outdoor Light: Full sun, Mostly sunny

Black & Bloom Salvia, Anise Sage

Salvia guaranitica 'Black and Bloom'  PP27183

Who knew you could out do Black and Blue Salvia?! Black & Bloom Salvia produces larger flowers that emerge from deep black calyces adorned along black stems. It flowers earlier and is a more vigorous plant overall growing slightly larger and has thick deep green quilted foliage. Like its pollen parent, Black & Bloom Salvia attracts hummingbirds as well as larger butterflies to its deep dark violet blue tubular flowers. This a great perennial for full sun to mostly sunny gardens or medium to large containers. Item# 11180

Grows To: 3-4'H x 2-3'W
Outdoor Light: Full sun, Mostly sunny, Part shade

Black and Blue Salvia, Anise Sage

Salvia guaranitica 'Black and Blue', S. caerulea, S. concolor 'Black and Blue'  

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 and selection of Salvia guaranitica, 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 up to about 3' high but may remain shorter in drier poorer soils. Provide a full to mostly sunny position in an average moist to moist, average to well-drained, moderately fertile soil for maximum vigor and flower production. Easy and reliable. Item# 808

Grows To: 24-36"H x 12-18"W, space about 12" apart
Outdoor Light: Full sun, Mostly sunny, Part shade, Part sun
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 130
US$9.99

Dense spikes of deep blue tubular flowers are produced from late spring to fall attracting a variety of pollinators including bees, butterflies, and low flying hummingbirds. Blue Bayou Agastache is a small to medium-sized herbaceous perennial with deep green fragrant foliage and excellent flower power. Reminiscent of Black Adder but in a more compact size that is better suited to small to medium sized container gardens as well as a long flowering addition to the sunny garden or landscape. Provide a full to mostly sunny location in a well-drained sandy soil for optimum vigor and flowering as well as the plant's longevity. Image courtesy of Walter's Gardens, Inc., all rights reserved. Item# 13297

Grows To: 16-18"H x 14-18"W
Outdoor Light: Full sun, Mostly sunny
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
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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.

Grows To: 30-36"H space at about 24" apart
Outdoor Light: Full sun, Mostly sun

Blue Butterfly Bush, Blue Glory Bower, Blue Wings Bush

Rotheca myricoides 'Ugandense', Clerodendrum ugandense, C. myricoides 'Ugandense'  

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

USDA Cold Hardiness Zones: 9,10,11,(8B? with protection)
Grows To: 4-6'H x 4-6'W and larger in mild winter climates.
Outdoor Light: Full sun, Mostly sunny, Part shade, Part sun
4.5 inch Pot / 20 fl.oz. / 591 ml
Currently In Stock: 38
US$14.99

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.

Grows To: 2-3'H x 1-2'W, space about 1' apart
Outdoor Light: Full sun (moist-wet soils), Morning sun, Light shade

Blue Crown Passion Vine

Passiflora caerulea  

A crown of deep sapphire blue filaments create a striking contrast with the white petals and sepals that are held against the rich green foliage throughout the growing season. The Blue Crown Passionflower is a vigorous growing tropical vine and can easily reach 20' once well-established. This is also one of the most reliably cold hardy Passionvines with foliage remaining evergreen in the mildest 8B winters but dying back to the ground in severe winters and returning readily in spring. The Blue Crown Passionflower may spread somewhat by rhizomes but it is generally much more tame than the Maypop. Cross pollination may produce tropical tasting tangy fruit that surrounds the dark seeds inside. Click on "More Details and Growing Info" or the image to learn more about growing Passionvines as perennials in containers or in the garden and landscape. Caterpillar host: Gulf Fritillary, Julia Butterfly, Variegated Fritillary, and Zebra Longwing. Item# 733

Grows To: 15-20'H+
Outdoor Light: Full sun, Mostly sunny, Part shade, Part sun
4.5 inch Pot / 20 fl.oz. / 591 ml
Currently In Stock: 0
US$14.99
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Cannot Ship To: HI

Blue Empire™ Bluebeard, Spiraea, Caryopteris

Caryopteris x Blue Empire™' 'Elst01'  PP30494

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

Grows To: 30-40"H x 24"W
Outdoor Light: Full sun, Mostly sunny
4.5 inch Pot / 20 fl.oz. / 591 ml
Currently In Stock: 0
US$14.99
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Blue Fortune Agastache, Hyssop

Agastache 'Blue Fortune'  

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.

Grows To: 36-48"H space at about 24" apart
Outdoor Light: Full sun, Mostly sun

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

Grows To: 2-3'H x 4-6'W as perennial, 4-6'H x 6-8'W as evergreen vine
Outdoor Light: Part sun, Part shade, Am sun, *Full sun
4.5 inch Pot / 20 fl.oz. / 591 ml
Currently In Stock: 35
US$14.99

Blue Hibiscus, Lilac Hibiscus

Alyogyne huegelii, Hibiscus huegelii  

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. Caterpillar host: Gray hairstreak. Item# 12881

Grows To: 4-8'H x 3-6'W
Outdoor Light: Full sun, Mostly sunny

Blue Ice Bluestar

Amsonia 'Blue Ice'  

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.

Grows To: 12-24"H x 24-36"W
Outdoor Light: Full sun, Mostly sunny, Part shade, Part sun
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
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Blue Mistflower, Wild Ageratum, Hardy Ageratum, Blue Boneset

Conoclinium coelestinum, Eupatorium coelestinum  

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

Grows To: 18-30"H x 8-12" and spreading, space at 8-12" apart
Outdoor Light: Full sun, Mostly sunny, Part shade, Part sun

Large clusters of lightly fragrant lavender-blue flowers are produced in early spring and are held well above the deep dark green foliage. Blue Moon Phlox was selected for its clusters of large full flowers and vigor. This is an excellent choice for lightly shaded gardens or as a groundcover under deciduous trees. Provide shade during the hottest portion of the day in hot summer climates and well-drained soil rich in organic matter. Easy and reliable once established. The flowers provide early spring nectar to butterflies and other pollinators. Blue Moon Phlox along with the straight species Phlox divaricata tied for the Top Performer in Mt. Cuba Center Phlox for Shade trials. Item# 11217

Grows To: 6-12"H and slowly spreads
Outdoor Light: *Full sun, Part sun, Part shade, Light shade

2022 Missouri Botanic Garden Plants of Merit selection! One of the most amazingly blue colored flowers in the plant world! This small growing but vigorous annual or tender perennial vine produces loads of brilliant deep blue flowers with recurving and overlapping petals with a white to creamy yellow throat. It can be successfully overwintered but it's easier just to save a few seeds to plant in spring. Caterpillar host: Longtail Skipper. Item# 9114

Blue dye can be extracted from the blossoms!!

Grows To: 6-10'H x 3-5'W
Outdoor Light: Full sun, Mostly sunny, Part shade, Part sun
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
US$12.99
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African Sky Salvia

Salvia ‘African Sky’ (S. chamelaeagnea x S. scabra)  

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

 

Grows To: 30-36"H x 18-24"W
Outdoor Light: Full sun, Mostly sunny
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
US$9.99
Temporarily Out of Stock
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Quantity Exceeds Stock Level

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