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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.

 

Costa Rican Blue Sage or Salvia, Anise Sage, Brazilian Sage

Salvia 'Costa Rican Blue', S. guaranitica 'Costa Rican Blue'

Cost Rican Blue Salvia produces large spikes of exceptionally large bluish purple tubular flowers that emerge from darkly colored calyxes in summer and fall above the soft, somewhat bluish green foliage. Considered by some to be a selection of Salvia guaranitica, and possibly a tetraploid or hybrid, it differs in its larger more robust habit, larger flowers that start later in the summer, and its very pubescent foliage. Excellent for hummingbirds and other long tongued pollinators. Provide a full sun to part shade location in an average moist to moist acidic well-drained moderately fertile soil for optimum vigor and flowering. Item#10233

Grows To: 4-6'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$9.99
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Jack in the Bush or Crucita is truly one of the very best butterfly plants! The nectar rich, light blue to purple, flat topped flower clusters make perfect landing platforms for pollinators of all shapes and sizes. Crucita can be found in flower as early as mid summer to late fall. Item# 10670.

Grows To: 3-6'H x 4-6'W
Outdoor Light: Full sun, Part sun, Part shade
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 27
US$7.99
Cannot Ship To: HI

Dark Knight Bluebeard, Spiraea, Caryopteris

Caryopteris x clandonensis 'Dark Knight'

Dense whorls of nectar rich, purple to dark blue-purple, tubular flowers seemingly cover up the upper most portions of the plant for weeks beginning in mid to late summer and continuing into fall. Dark Knight Bluebeard, a.k.a. Black Knight, is a vigorous and easy sunloving free-flowering clump forming shrub-like perennial that quickly develops into a dense mound of fragrant and deer resistant gray-green foliage. In zones 5-6 it 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. Item# 12117

Grows To: 2-3'H x 2-3'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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Domotoi Bigleaf Hydrangea, Setsuka-yae Bigleaf Hydrangea (Double, Mophead)

Hydrangea macrophylla 'Domotoi', H. macrophylla 'Setsuka-yae'

A double flowered Bigleaf Hydrangea, Domotoi produces medium to large clusters of pastel blue to purple (acid soils) to light pink (alkaline soils) in summer. Rich glossy green foliage provides a wonderful backdrop to the flowers of this elegant mophead Hydrangea. Domotoi or Setsuka-yae Hydrangea is compact growing deciduous shrub well-suited to semi-shaded gardens. In hot summer climates filtered shade and midday and afternoon shade are preferred. Item# 382

Grows To: 4-5'H x 5-6'W
Outdoor Light: Cool morning sunlight, Filtered shade, Midday shade, Part sun, Part shade
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
US$12.99
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Dooley Hydrangea produces large mopheads of rich blue or pink, depending on soil pH. This is a vigorous growing, exceptionally cold hardy Big Leaf Hydrangea introduced by Dr. Michael Dirr.Hydrangeas are easy to grow deciduous shrubs that prefer partly shaded areas of the garden with a rich, moist but not wet, soil. Prune immediately after flowering to control size and shape. Provide midday and afternoon shade in hot southern climates. Item# 384

Grows To: 4-6'H x 5-7'W
Outdoor Light: Light shade, Part shade, AM sun, Part sun, *Full sun
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
US$9.99
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The large deep purplish-blue star-shaped flowers open from balloon shaped buds look as though one flower was neatly tucked inside the other. The 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. Double Blue is a larger 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# 11629

Grows To: 2-3' x 2-3'W
Outdoor Light: Full sun, Mostly sunny, Part sun, Part shade (Part shade in S regions)

Double Blue Spiderwort, Caerulea Plena Tradescantia, Lady's Tears

Tradescantia virginiana 'Caerulea Plena', T. x andersoniana 'Caerulea Plena'

A rare form of Spiderwort, Caerulea Plena produces clusters of deep purplish blue double to single, 1 1/2" wide flowers held atop numerous sturdy stems beginning in late spring and continuing throughout summer. Spiderwort is a tough as nails, clump forming perennial that lends itself to gardens, low maintenance landscapes, and containers. Caerulea Plena Tradescantia received four out of four stars in trials at the Chicago Botanic Gardens. Item# 11111

USDA Cold Hardiness Zones: 4,5,6,7,8,9,10,11
Grows To: 12-24"H x 12-18"W
Outdoor Light: Full sun, Part sun, Part shade, Light shade
4.5 inch Pot / 20 fl.oz. / 591 ml
Currently In Stock: 0
US$12.99
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Double Blue Spiderwort, Caerulea Plena Tradescantia, Lady's Tears

Tradescantia virginiana 'Caerulea Plena', T. x andersoniana 'Caerulea Plena'

A rare form of Spiderwort, Caerulea Plena produces clusters of deep purplish blue double to single, 1 1/2" wide flowers held atop numerous sturdy stems beginning in late spring and continuing throughout summer. Spiderwort is a tough as nails, clump forming perennial that lends itself to gardens, low maintenance landscapes, and containers. Caerulea Plena Tradescantia received four out of four stars in trials at the Chicago Botanic Gardens. Item# 11680

USDA Cold Hardiness Zones: 4,5,6,7,8,9,10,11
Grows To: 12-24"H x 12-18"W
Outdoor Light: Full sun, Part sun, Part shade, Light shade
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
US$9.99
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The doubly delightful large double florets that surround the fertile flowers are either rich pink or deep blue broadly edged in white creating a colorful starry effect in the center of each one. Double Delights™ Star Gazer Hydrangea flowers on both old and new wood providing a long season of interest. By flowering on new wood this ensures that plants grown in the coldest portions of its range will still flower and this extends the flowering season elsewhere. Double Delights™Star Gazer is also mildew resistant. Item# 11415

Grows To: 3-4'H x 4-5'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$12.99
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Durham's Blue Eyes Porterweed

Stachytarpheta 'Durham's Blue Eyes'

Tall spikes adorned with whorls of 3/8" purple flowers edged in light lavender are produced throughout the growing season and the nectar rich flowers attract butterflies, bees, hummingbirds, and even hummingbird moths. From the breeding work of the Durham twins of east Texas, Darrell and Jerrell, comes this unusual picoteed color form of Porterweed. These are vigorous well-branched herbaceous to shrub-like tropical perennials that revel in the heat and sun of summer providing a continuous display of flowers and pollinators until the first frost. The flower power of Porterweeds makes them worthy of being grown as annuals where not hardy or they can be overwintered as container plants in a warm sunny location indoors. Provide a full to mostly sunny location with average or better drainage and moderate fertility for optimum vigor and flowering. Item# 11967

Grows To: 3-4'H x 2-3'W
Outdoor Light: Full sun, Mostly sunny, Part shade
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
US$9.99
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The Dwarf Blue Wild Indigo produces dense sturdy spikes of blue to near purple pea-shaped flowers on compact plants reaching only about 2 feet high at maturity. In most other regards it is very similar to the more common Blue Wild Indigo. Baptisias are long-lived, reliable, and easy to grow taprooted native perennials with good pest and disease resistance. Provide a sunny position for optimum flowering and health. More and more flowering stems with each successive year so be patient if it seems a little like an awkward teenager in the garden. Item# 11594

Grows To: 1-2'H x 2-3'W
Outdoor Light: Full sun, Mostly sunny
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
US$7.99
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Dwarf Weeping Blue Ginger

Dichorisandra pendula

Drooping clusters of blue blooms are borne practically throughout the year. Tropical glossy green ginger-like foliage is borne on stiff fleshy stems. Item # 998.

Grows To: 4'H x 2'W
Outdoor Light: Full sun, Part sun, Part shade, Light shade
4.5 inch Pot / 20 fl.oz. / 591 ml
Currently In Stock: 0
US$14.99
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Eastern Bluestar

Amsonia tabernaemontana

Clusters of blue to light blue, star-shaped flowers are borne in spring on sturdy stems atop the wide foliage. The Eastern Bluestar makes a wonderful garden addition with a mannerly clump forming habit and excellent pest and disease resistance. Yellow fall foliage color adds to its interest. Tolerant of wet to average moist soils. Eastern Bluestar is an easy to grow and reliable native perennial. The flowers attract butterflies and hummingbird moths. Item# 10268

Grows To: 2-3'H x 3-4'W
Outdoor Light: Full sun, Part sun, Part shade
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
US$7.99
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Emerald Blue Creeping Phlox, Moss Phlox, Thrift

Phlox subulata 'Emerald Blue'

A beautiful selection of this durable native, Emerald Blue Thrift creates a mass of lavender to blue, sometimes with a hint of pink, spring flowers that cover the fine trailing foliage. Finely textured, almost needle-like, evergreen foliage adorns the low trailing stems of this easy groundcover. Attracts butterflies. Deer and drought resistant once well established. Item# 10486.

Grows To: 3-6"H x 18-24"W
Outdoor Light: Full sun, Part sun, Part shade (Part shade in S regions)
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
US$7.99
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Eva Lyon Holmes Hydrangea (Repeat Flowering, Mophead)

Hydrangea macrophylla 'Eva Lyon Holmes'

Eva Lyon Holmes is a repeat blooming Hydrangea sporting large Mopheads of pink or blue beginning in late spring and will continue to bloom on new growth into summer and fall. Repeat blooming Hydrangea varieties will bloom even after extreme cold has frozen the buds of older varieties making them more suitable choices for northern regions. item# 9074.

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$9.99
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Deep red to bronze foliage on a bromeliad that multiplies readily creating a dense beautiful basket of medium-sized cascading plants. The Fire Ball Bromeliad, a type of Neoregelia, makes an easy low maintenance tropical-looking hanging basket plant or grow it as an epiphyte on wood or cork. The more intense the lighting is the more this Bromeliad looks like it is on fire! Item# 415

Grows To: 6-8''H and spreads,trails
Outdoor Light: Cool AM sun, Part shade, Light shade, Filtered shade
4.5 inch Pot / 20 fl.oz. / 591 ml
Currently In Stock: 11
US$12.99
Cannot Ship To: HI

The large mopheads of Firefly Hydrangea are composed of semi-double red florets that fade to a brightly contrasting creamy white eye. Flowers may be blue to purple in acid to neutral soils with the same contrasting eye. This Hydrangea is reblooming and established plants can flower throughout summer under good conditions. Provide a moist, well-drained soil and provide shade during the hottest portion of the day. Item# 11417

Grows To: 3-4'H x 4-5'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$12.99
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Wave after wave of fragrant blue to blue-purple flowers with a contrasting orange eye are produced in dense spikes from spring to fall. Flutterby Petite® Blue Heaven Butterfly Bush is a densely branching compact deciduous shrub with gray-green foliage that makes colorful addition to the garden and landscape but is small enough to use in medium-sized containers. The fragrant flowers of Buddleias are excellent for attracting butterflies, bees, and a host of other garden beneficials. Item# 11445

Grows To: 24-30''H x 24-30''W
Outdoor Light: Full sun, Mostly sunny, Part shade
4.5 inch Pot / 20 fl.oz. / 591 ml
Currently In Stock: 4
US$12.99
Cannot Ship To: OR,WA

A vigorous and reliably long flowering full sized Balloon Flower, Fuji Blue produces both single and double purple-blue flowers with darker veining beginning in midsummer and continuing into fall atop a vigorous upright growing stems that can exceed 3' high. This was one of the top-rated Balloon Flowers receiving 4 out of 4 stars in the ten year long trials at the Chicago Botanic Gardens. Balloon Flowers are taprooted perennials that produce more and more flowering stems as the plants age and expect this one to reach about 2-1/2' wide at maturity. Fall brings foliage colors in purple and yellow shades. An easy and low maintenance conversation starting perennial for the garden and landscape. Image courtesy of Walter's Gardens, Inc. Item# 11670

Grows To: 3' x 2-3'W
Outdoor Light: Full sun, Mostly sunny, Part sun, Part shade (Part shade in S regions)

Full Moon Lily of the Nile, Agapanthus

Agapanthus 'Blue Flare'

A vigorous growing Agapanthus, Full Moon produces extra large rounded clusters of white trumpet shaped flowers with a deep blue stripe down the middle of each petal creating a beautiful effect. Developed for its exceptional vigor, large rounded flower clusters of such an unusual color combination. The flowers attract bees, butterflies, and hummingbirds. Use Full Moon Agapanthus as a specimen plant in containers or in the garden and landscape. Easy and reliable. Item# 11480

Grows To: 2-3'H x 2-3'W
Outdoor Light: AM sun, Part sun, Part shade, Light shade, Full sun
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
US$9.99
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Giant Blue African Salvia, Giant Salvia

Brillantaisia nitens, B. cicatricosa, B. subulugarica, B. grandidentata

An unusual plant rarely found for sale in the US, Giant Blue African Salvia produces spikes, up to 16" high, of blue to purple, up to 2" long, hooded, two-lipped, tubular, lightly fragrant flowers throughout the warmer months of the year with the heaviest flowering in spring and late summer and fall. A vigorous tender herbaceous plant with very large tropical foliage and square stems that can easily reach 6-9' high and may grow to 15' high becoming tree-like in its native habitat. Item# 10703.

Grows To: 6-9'H x 4-6'W, up to 15'H where frost free
Outdoor Light: Full sun*, Part sun, Part shade, Light shade
4.5 inch Pot / 20 fl.oz. / 591 ml
Currently In Stock: 30
US$9.99
Was: $12.99

Glowing Embers in known for producing large clusters of flowers in rich deep colors on a compact but vigorous plant. In alkaline soils the showy serrated sepals of Glowing Embers Hydrangea open a deep pink and mature into shades of rich red. In acid soils they open a deep blue and darken into shades of deep blue, indigo, and purple. Never lacking for vigor and reliability, Glowing Embers produces a compact and sturdy shrub with deep dark green foliage on a naturally rounded plant. Provide an evenly moist soil and afternoon shade in hot summer climates but otherwise this Hydrangea is an easy to enjoy addition to the garden and landscape. Hydrangeas are also wonderful cut flowers and what a bouquet Glowing Embers would make! Item# 10748.

Grows To: 3-4'H x 4-5'W
Outdoor Light: Part shade, Morning sun, Filtered sun, Full sun in cool summer climates
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
US$9.99
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Green's Blues™ Sasanqua Camellia

Camellia hiemalis 'Green's Blues', C. sasanqua 'Green's Blues'

A blue flowered Sasanqua! Dark purple buds open to purplish-red the first day and change to lavender-blue the second creating a multi-colored effect on this semi-dwarf evergreen Sasanqua in fall. The blues are intensified in acid soils. Rich deep green rounded foliage on a compact rounded plant. Very similar to Shi-Shi Gashira in foliage and habit and is a chance seedling of the Louisiana Super Plant selection Shi-Shi Gashira. Item# 9636.

Grows To: 4-6'H x 4-6'W
Outdoor Light: Full sun, Part sun, Part shade, Light shade
4.5 inch R / 20 fl.oz. / 591 ml
Currently In Stock: 0
US$14.99
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Gregg's Mist Flower, West Texas Ageratum

Conoclinium greggii, C. dissectum, Eupatorium greggii

Flat topped clusters of bluish-purple Ageratum-like flowers are borne atop short sturdy stems that are adorned with finely cut and softly textured, medium green foliage. The flowers attract loads of butterflies as well as other pollinators and Gregg's Mist Flower flowers most heavily beginning in late summer and lasting through fall. Its rhizomatous though non-aggressive nature makes this durable and drought resistant perennial an excellent addition to the garden where it can be utilized as a groundcover as well as in naturalistic settings. It does seem to prefer a little midday and afternoon shade, especially in the hottest summer climates and in dryer settings. Item# 10811.

Grows To: 18-24"H space about 12-18" apart
Outdoor Light: Part sun, Part shade, Light shade, Full sun*
3.5 inch Pot / 16 fl.oz. / 473 ml
Currently In Stock: 0
US$8.99
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Costa Rican Blue Sage or Salvia, Anise Sage, Brazilian Sage

Salvia 'Costa Rican Blue', S. guaranitica 'Costa Rican Blue'

Cost Rican Blue Salvia produces large spikes of exceptionally large bluish purple tubular flowers that emerge from darkly colored calyxes in summer and fall above the soft, somewhat bluish green foliage. Considered by some to be a selection of Salvia guaranitica, and possibly a tetraploid or hybrid, it differs in its larger more robust habit, larger flowers that start later in the summer, and its very pubescent foliage. Excellent for hummingbirds and other long tongued pollinators. Provide a full sun to part shade location in an average moist to moist acidic well-drained moderately fertile soil for optimum vigor and flowering. Item#10233

Grows To: 4-6'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$9.99
Temporarily Out of Stock

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