101 Blue Flowers: A Comprehensive Guide with Names and Images

24 Min Read

Using a wide range of colours while planting your garden will help produce a stunning botanical image. But some flower colours are more uncommon than others. Blue is one such colour of flower that you may not yet have in your garden. Blue is a colour associated with peace, tranquilly, and serenity. Regrettably, blue is a colour that is uncommon in the natural world, making blue flowers more difficult to locate.

You may discover all there is to know about the 101 most well-liked blue flowers in this extensive list, along with some basic maintenance advice. You’ll also discover some interesting details regarding their outstanding qualities! Now let’s get started!

Table of Contents

1.Blue Viper’s Bugloss (Echium vulgare)

Blue Viper’s Bugloss Botanical Name: Echium vulgare

Plant Type: Biennial/Perennial

Hardiness Zones: 3-8 (USDA)

Sun Exposure: Full Sun

Bright blue, bee-friendly flower spires are produced by Blue Viper’s Bugloss. This wildflower gives gardens a hint of the wild.

2. Blue Violets (Viola sororia)

Blue Violets

Botanical Name: Viola sororia

Plant Type: Perennial

Hardiness Zones: 3-8 (USDA)

Sun Exposure: Partial Shade to Full Sun

Blue violets have violet-to-blue flowers and leaves fashioned like hearts. They are a pleasant addition to shaded locations, and they naturally integrate well.

3. Blue Monkshood (Aconitum carmichaelii)

Blue Monkshood

Botanical Name: Aconitum carmichaelii

Plant Type: Perennial

Hardiness Zones: 3-7 (USDA)

Sun Exposure: Full Sun to Partial Shade

The foliage of the Blue Monkshood is highly lobed and has spikes of hooded blue blooms. You should handle this deadly plant carefully.

4. Blue Spiderwort (Tradescantia ohiensis)

Blue Spiderwort

Botanical Name: Tradescantia ohiensis

Plant Type: Perennial

Hardiness Zones: 5-9 (USDA)

Sun Exposure: Full Sun to Partial Shade

Clusters of blue-to-violet flowers are carried by blue spiderwort atop strappy leaves. It is a hardy shrub that looks great in rural landscapes and cottage gardens.

5. Blue Honeywort (Cerinthe major‘Purpurascens’)

Blue Honeywort

Botanical Name: Cerinthe major ‘Purpurascens’

Plant Type: Annual

Hardiness Zones: 3-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

The blue-violet tubular flowers of blue honeywort are grouped among blue-green foliage. This unusual, self-seeding shrub is simple to maintain and adds an exotic touch to cottage gardens.

6. Blue Brodiaea (Brodiaea pulchella)

Blue Brodiaea

Botanical Name: Brodiaea pulchella

Plant Type: Perennial

Hardiness Zones: 7-10 (USDA)

Sun Exposure: Full Sun

Star-shaped, blue-violet flowers are borne in clusters by Blue Brodiaea. This native Californian bulbous plant is a great option for rock gardens since it does well in soil that drains well.

7. Blue Dawn Flower (Stictocardia beraviensis)

Blue Dawn Flower

Botanical Name: Stictocardia beraviensis

Hardiness Zones: 10-11 (USDA)

Plant Type: Perennial Vine

Sun Exposure: Full Sun

The Blue Dawn Flower has huge funnel-shaped flowers that are sky blue in colour. It’s a warm-weather vine that grows quickly, giving pergolas and fences a touch of the tropics.

8. Anise Sage (Salvia guaranitica)

Anise Sage

Botanical Name: Salvia guaranitica

Plant Type: Perennial

Hardiness Zones: 7-10 (USDA)

Sun Exposure: Full Sun

Blue sage, sometimes called anise sage, has fragrant foliage and tall spikes of rich blue blooms. It’s a favourite in wildlife gardens since it attracts butterflies and hummingbirds.

9. Blue Lobelia (Lobelia erinus)

Blue Lobelia (Lobelia erinus)

Botanical Name: Lobelia erinus

Hardiness Zones: 2-11 (USDA)

Plant Type: Annual

Sun Exposure: Full Sun to Partial Shade

The rich blue, tubular flowers of Blue Lobelia are abundantly displayed in groups. It works great for hanging pots and baskets to create a waterfall effect of blue flowers.

10. Lily of the Nile (Agapanthus africanus)

Lily of the Nile

Botanical Name: Agapanthus africanus

Plant Type: Perennial

Hardiness Zones: 6-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

The trumpet-shaped blue flowers of the Lily of the Nile are arranged in clusters on tall stems. It is a low-maintenance plant that looks great in containers and borders. It gives gardens a hint of exotic appeal.

11. Love-in-a-Mist (Nigella damascena)

Love-in-a-Mist

Botanical Name: Nigella damascena

Plant Type: Annual

Hardiness Zones: 2-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

Love-in-a- Mist, or Nigella damascena, is a plant with delicately cut leaves and star-shaped, sky-blue blooms encircled by a mist of delicate foliage. They easily self-sow, giving gardens a lovely, organic appearance.

12. Blue Dahlia (Dahlia spp)

Blue Dahlia

Botanical Name: Dahlia spp.

Plant Type: Tuberous Perennial

Hardiness Zones: 7-11 (USDA)

Sun Exposure: Full Sun

Blue dahlias lend elegance to flower gardens and bouquets since they come in a variety of hues, from powder blue to deep indigo. For all types to maintain their attractiveness, they require support to keep them from toppling over.

13. Blue Plumbago (Plumbago auriculata)

Blue Plumbago

Botanical Name: Plumbago auriculata

Plant Type: Shrub

Hardiness Zones: 9-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

Sky-blue flower clusters adorn the sprawling shrub known as blue plumbago. It draws butterflies and can withstand droughts. To keep form and promote bushier growth, prune.

14. Blue Mink (Ageratum houstonianum)

Blue Mink

Botanical Name: Ageratum houstonianum

Plant Type: Annual

Hardiness Zones: 2-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

Fluffy clusters of tiny, powder-blue flowers are shown by Blue Mink, also called Floss Flower. It is great for borders, containers, and mass plantings, and it blooms profusely.

15. Blue Daisy Bush (Cineraria maritima)

Blue Daisy Bush

Botanical Name: Cineraria maritima

Plant Type: Perennial

Hardiness Zones: 9-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

In blue Small blue flowers like daisies adorn the silvery-blue foliage of Daisy Bush. For borders and rock gardens, it works well. Trim to keep a compact form.

16. Blue Devil (Eryngium planum)

Blue Devil

Botanical Name: Eryngium planum

Plant Type: Perennial

Hardiness Zones: 3-9 (USDA)

Sun Exposure: Full Sun

Thistle-like foliage and spiky blue flowers characterize Blue Devil, often called Sea Holly. This shrub, which can withstand drought, gives gardens and floral arrangements more texture and intrigue.

17. Blue Flax (Linum perenne)

Blue Flax

Botanical Name: Linum perenne

Plant Type: Perennial

Hardiness Zones: 5-9 (USDA)

Sun Exposure: Full Sun

Sky-blue, delicate flowers are carried on slender stems by Blue Flax. It does well on rocky or sandy soil and can withstand droughts. Regularly remove deadheads to promote ongoing blooming.

18. Himalayan Blue Poppy (Meconopsis betonicifolia)

Himalayan Blue Poppy

Botanical Name: Meconopsis betonicifolia

Plant Type: Perennial

Hardiness Zones: 7-9 (USDA)

Sun Exposure: Partial Shade

The tall stems of Himalayan blue poppies bear enormous, sky-blue blooms. They need well-drained soil and chilly, damp environments. For optimum effects, shield from the hot afternoon sun.

19. Blue Lobelia (Lobelia siphilitica)

Blue Lobelia (Lobelia siphilitica)

Botanical Name: Lobelia siphilitica

Plant Type: Perennial

Hardiness Zones: 4-9 (USDA)

Sun Exposure: Full Sun to Partial Shade

On upright stems, Blue Lobelia displays spires of brilliant blue blooms. Rain gardens are ideal for this plant since it grows well in damp soil. Extended blooming is ensured by consistent watering.

20. Delphinium (Delphinium)

Delphinium

Botanical Name: Delphinium

Plant Type: Perennial

Hardiness Zones: 3-7 (USDA)

Sun Exposure: Full Sun

Tall, graceful plants, delphiniums, have spikes of bright blue blooms packed closely together. They need well-drained soil and staking for support. Frequent removal of deadheads extends blooming.

21. Bluebell (Hyacinthoides non-scripta)

Bluebell

Botanical Name: Hyacinthoides non-scripta

Plant Type: Bulbous Perennial

Hardiness Zones: 3-8 (USDA)

Sun Exposure: Partial Shade to Full Shade

The little, bell-shaped blooms, known as bluebells, grow in drooping clusters. They blend in nicely and have a preference for wooded areas. Bluebells looks great in gardens with shadows.

22. Blue Hydrangea (Hydrangea macrophylla)

Blue Hydrangea

Botanical Name: Hydrangea macrophylla

Plant Type: Deciduous Shrub

Hardiness Zones: 5-9 (USDA)

Sun Exposure: Partial Shade

The expansive, fluffy clusters of blue flowers that adorn blue hydrangeas are their hallmark. They grow well in somewhat shaded areas and prefer acidic soil. To promote fresh growth, prune them once they have flowered.

23. Blue Squill (Scilla siberica)

Blue Squill

Botanical Name: Scilla siberica

Plant Type: Perennial Bulb

Hardiness Zones: 2-8 (USDA)

Sun Exposure: Full Sun to Partial Shade

Early springtime brings bell-shaped blue flowers that nod. This is the blue squill. It quickly becomes naturalized and covers gardens like a blue carpet.

24. Blue Curls (Phacelia congesta)

Blue Curls

Botanical Name: Phacelia congesta

Plant Type: Annual

Hardiness Zones: 5-10 (USDA)

Sun Exposure: Full Sun

Blue to purple blooms are arranged in coiled bunches by Blue Curls. They greatly improve pollination in gardens by drawing in bees and butterflies.

25. Blue Japanese Iris (Iris ensata)

Blue Japanese Iris

Botanical Name: Iris ensata

Plant Type: Perennial

Hardiness Zones: 4-9 (USDA)

Sun Exposure: Full Sun to Partial Shade

The huge, elaborate blue blossoms of the blue Japanese iris include white and yellow patterns. This plant, which thrives in wet environments, is perfect for pond borders.

26. Blue Dampiera (Dampiera stricta)

Blue Dampiera

Botanical Name: Dampiera stricta

Plant Type: Perennial

Hardiness Zones: 9-11 (USDA)

Sun Exposure: Full Sun

The Blue Dampiera flower has yellow centres and brilliant blue petals. It is a low-growing, spreading shrub that does well in sandy soils and coastal regions.

27. Blue Gilia (Gilia aggregata)

Blue Gilia

Botanical Name: Gilia aggregata

Plant Type: Annual

Hardiness Zones: 3-10 (USDA)

Sun Exposure: Full Sun

Skyrocket, or blue gilia, is a plant that grows long stems topped with clusters of sky-blue flowers. This native wildflower of western North America gives meadows and xeriscapes a touch of the natural world.

28. Siberian Bugloss (Brunnera macrophylla)

Siberian Bugloss

Botanical Name: Brunnera macrophylla

Plant Type: Perennial

Hardiness Zones: 3-8 (USDA)

Sun Exposure: Full Shade to Partial Shade

The heart-shaped leaves and tiny, vivid blue blooms that resemble forget-me-nots are characteristics of Brunnera macrophylla. This shade-loving perennial gives forest gardens and shady borders style and colour.

29. Grape Hyacinth (Muscari)

Grape Hyacinth

Botanical Name: Muscari spp.

Plant Type: Bulbous Perennial

Hardiness Zones: 3-9 (USDA)

Sun Exposure: Full Sun to Partial Shade

The tiny, cobalt-blue flowers on the compact spikes of grape hyacinths resemble miniature grapes. They are beautiful under deciduous trees and as rock gardens, and they naturalize easily.

30. Bachelor’s Button (Centaurea cyanus)

Bachelor’s Button

Botanical Name: Centaurea cyanus

Plant Type: Annual

Hardiness Zones: 2-11 (USDA)

Sun Exposure: Full Sun

Cornflowers, often known as bachelor’s buttons, have a contrasting yellow centre and vivid blue petals. It’s a popular cut flower that attracts butterflies and bees. It is a good fit for wildflower gardens because it can grow well in poor soil.

31. Blue Hosta (Hosta spp)

Blue Hosta

Botanical Name: Hosta spp

Plant Type: Perennial

Hardiness Zones: 3-9 (USDA)

Sun Exposure: Full Shade to Partial Shade

The blue-hued leaves of the Blue Hosta are fashioned like hearts. Though mostly planted for their foliage, several types also yield elegant lavender-blue flowers on tall spikes that enhance the beauty of shadow gardens.

32. Blue Throatwort (Collinsia heterophylla)

Blue Throatwort

Botanical Name: Collinsia heterophylla

Hardiness Zones: 3-9 (USDA)

Plant Type: Annual

Sun Exposure: Full Sun to Partial Shade

The blue throatwort has white throats and clusters of blue flowers. This lovely wildflower is a delightful addition to meadows and cottage gardens because it self-sows rapidly.

33. Blue Cardinal Climber (Ipomoea horsfalliae)

Blue Cardinal Climber

Botanical Name: Ipomoea horsfalliae

Plant Type: Perennial Vine

Hardiness Zones: 10-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

The tubular, blue-violet flowers of the Blue Cardinal Climber, also known as Prince Kuhio Vine, are accompanied by glossy, dark-green leaves. This robust vine gives fences, arbours, and trellises a touch of the tropics.

34. Blue Trumpet Vine (Thunbergia battiscombei)

Blue Trumpet Vine

Botanical Name: Thunbergia battiscombei

Plant Type: Perennial Vine

Hardiness Zones: 10-11 (USDA)

Sun Exposure: Full Sun

The Blue Trumpet Vine has rich green foliage and trumpet-shaped, deep blue blooms. It’s a quick-growing vine that draws butterflies and hummingbirds, giving gardens a vibrant focal point.

35. Blue-eyed Mary (Collinsia verna)

Blue-eyed Mary

Botanical Name: Collinsia Verna

Plant Type: Annual

Hardiness Zones: 5-9 (USDA)

Sun Exposure: Partial Shade to Full Sun

Blue eyes Mary bears blue tubular blooms with white centres in groups. This wood plant naturally blends in and, in the springtime, creates a blue carpet.

36. Blue Camass (Camassia quamash)

Blue Camass

Botanical Name: Camassia quamash

Plant Type: Perennial

Hardiness Zones: 4-9 (USDA)

Sun Exposure: Full Sun to Partial Shade

Blue flowers shaped like stars are borne atop tall spikes of blue camass. Natural Americans used this natural wildflower as a major source of food.

37. Blue Pincushion Flower (Scabiosa columbaria)

Blue Pincushion Flower

Botanical Name: Scabiosa columbaria

Plant Type: Perennial

Hardiness Zones: 3-8 (USDA)

Sun Exposure: Full Sun

The Blue Pincushion Flower is a long-stemmed flower with ruffled blue blossoms. It draws bees and butterflies and works great for trimming plants.

38. Blue Lace Flower (Didiscus caeruleus)

Blue Lace Flower

Botanical Name: Didiscus caeruleus

Plant Type: Annual

Hardiness Zones: 2-11 (USDA)

Sun Exposure: Full Sun

Blue Lace Flower yields exquisite, lacy blue flower umbels. It works great as a filler plant in flower arrangements and bouquets.

39. Blue Glorybower (Clerodendrum ugandense)

Blue Glorybower

Botanical Name: Clerodendrum ugandense

Plant Type: Shrub

Hardiness Zones: 10-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

Bright blue flower clusters with white centres are the hallmark of the Blue Glorybower. This year-round blooming plant is tropical in nature. It gives gardens a burst of brilliant colour and is a favourite with insects.

40. Blue Daisy (Felicia amelloides)

Blue Daisy

Botanical Name: Felicia amelloides

Plant Type: Perennial

Hardiness Zones: 8-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

The yellow centre of a blue daisy is surrounded by brilliant blue petals. They draw butterflies and bees and can withstand droughts. They are a delightful addition to any rock garden.

41. Blue Columbine (Aquilegia coerulea)

Blue Columbine

Botanical Name: Aquilegia coerulea

Plant Type: Perennial

Hardiness Zones: 3-9 (USDA)

Sun Exposure: Partial Shade to Full Sun

The distinctive spurred petals of blue columbines make them a great choice for woodland gardening. They want soil that drains well and some shade. For extended blooming, deadhead spent blooms.

42. Blue Water Lily (Nymphaea caerulea)

Blue Water Lily

Botanical Name: Nymphaea caerulea

Plant Type: Aquatic Perennial

Hardiness Zones: 9-11 (USDA)

Sun Exposure: Full Sun

The big, floating blue blossoms of blue water lilies have a pleasant scent. They look amazing in ponds and other water features, and they grow well in calm, sunny water.

43. Blue Throatwort (Trachelium caeruleum)

Blue Throatwort

Botanical Name: Trachelium caeruleum

Plant Type: Perennial

Hardiness Zones: 5-9 (USDA)

Sun Exposure: Full Sun to Partial Shade

Tiny blue flowers in clusters atop robust stems are produced by blue throatwort. It keeps nicely in bouquets and is great for cutting. It likes damp, fertile soil.

44. Blue Woodruff (Asperula orientalis)

Blue Woodruff

Botanical Name: Asperula orientalis

Plant Type: Perennial

Hardiness Zones: 5-9 (USDA)

Sun Exposure: Partial Shade

Blue woodruff creates a thick ground cover and small, fragrant blue blooms. It works best in regions with shade and well-drained soil. Herbal drinks frequently contain the blossoms.

45. Blue Thimble Flower (Gilia capitata)

Blue Thimble Flower

Botanical Name: Gilia capitata

Plant Type: Annual

Hardiness Zones: 3-9 (USDA)

Sun Exposure: Full Sun

The globe gilia, or blue thimble flower, bears spherical clusters of blue flowers that resemble thimbles. It does well in soil that drains well and can withstand drought. Ideal for gardens with wildflowers.

46. Morning Glory (Ipomoea purpurea)

Morning Glory

Botanical Name: Ipomoea purpurea

Plant Type: Annual Vine

Hardiness Zones: 2-11 (USDA)

Sun Exposure: Full Sun

The vivid blue, funnel-shaped blossoms of morning glory vines are produced. They are ideal for trees because they are simple to grow and climb. In bright sunlight, they blossom abundantly.

47. Blue Thistle (Echinops ritro)

Blue Thistle

Botanical Name: Echinops ritro

Plant Type: Perennial

Hardiness Zones: 3-9 (USDA)

Sun Exposure: Full Sun

The steel-blue, spherical flowers of the blue thistle are encircled by bristly bracts. It’s a staple in arrangements of dried flowers and gives gardens a hint of untamed beauty.

48. Blue Flax Lily (Dianella tasmanica)

Blue Flax Lily

Botanical Name: Dianella tasmanica

Plant Type: Perennial

Hardiness Zones: 7-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

The Blue Flax Lily has tiny blue flowers in the shape of stars and thin, blue-green foliage. This adaptable shrub is perfect for ground cover, borders, and large plantings.

49. Blue Porterweed (Stachytarpheta jamaicensis)

Blue Porterweed

Botanical Name: Stachytarpheta jamaicensis

Plant Type: Perennial

Hardiness Zones: 9-11 (USDA)

Sun Exposure: Full Sun

Tiny blue flowers are arranged in groups on the thin spikes of blue porterweed. It gives gardens a tropical flair and attracts butterflies and bees. It requires little care and grows best in sunny weather.

50. Forget-Me-Nots (Myosotis)

Forget-Me-Nots

Botanical Name: Myosotis spp.

Plant Type: Annual or Perennial

Hardiness Zones: 3-9 (USDA)

Sun Exposure: Full Sun to Partial Shade

Forget-Me-Nots are little, yellow-cantered blooms with a sky-blue centre. They stand for faithfulness and genuine affection. These woodland plants are perfect for woodland gardens and shaded borders since they grow well in damp, shaded spots.

51. Blue Butterwort (Pinguicula caerulea)

Blue Butterwort

Botanical Name: Pinguicula caerulea

Plant Type: Perennial Carnivorous Plant

Hardiness Zones: 8-11 (USDA)

Sun Exposure: Partial Sun to Full Sun

The lovely blue flowers of blue butterwort are paired with sticky leaf rosettes that serve as insect traps. It is a carnivorous plant that adds something special to bog gardens because it grows well in damp, acidic soil.

52. Balloon Flower (Platycodon grandiflorus)

Balloon Flower

Botanical Name: Platycodon grandiflorus

Plant Type: Perennial

Hardiness Zones: 3-9 (USDA)

Sun Exposure: Full Sun to Partial Shade

The name “Balloon Flowers” comes from its balloon-like buds that opened up to reveal blue blooms shaped like stars. They create wonderful-looking flowers and require little care.

53. Blue Fescue Grass (Festuca glauca)

Blue Fescue Grass

Botanical Name: Festuca glauca

Plant Type: Ornamental Grass

Hardiness Zones: 4-8 (USDA)

Sun Exposure: Full Sun

Compact mounds of delicate, blue-grey leaves are formed by blue fescue grass. It is perfect for planting in containers, ground cover, and edging. To revitalize growth, trim back in the early spring.

54. Blue African Lily (Agapanthus africanus)

Blue African Lily

Botanical Name: Agapanthus africanus

Plant Type: Perennial

Hardiness Zones: 6-10 (USDA)

Sun Exposure: Full Sun to Partial Shade

Globe-shaped clusters of blue flowers with long, thin stalks are produced by blue African lilies. They grow well in garden beds or containers and are resistant to drought. Split apart clusters so they can spread.

55. Blue Evening Primrose (Oenothera speciosa)

Blue Evening Primrose

Botanical Name: Oenothera speciosa

Plant Type: Perennial

Hardiness Zones: 5-10 (USDA)

Sun Exposure: Full Sun

In the Blue Evening the sky-blue flowers of the primrose unfold in the evening and have a saucer shape. It’s perfect for naturalizing wildflower gardens because it resists dryness and spreads easily.

56. Virginia Bluebells (Mertensia virginica)

Virginia Bluebells

Botanical Name: Mertensia virginica

Plant Type: Perennial

Hardiness Zones: 3-8

Sun Exposure: Full Shade to Partial Shade

Sky-blue, tubular flowers droop in clusters on Virginia bluebells. They like the wooded environment and blossom in the early spring. Their beautiful blue colour enhances the beauty of rural landscapes and shadow gardens.

57. Himalayan Blue Sheep (Pseudorchis albida)

Himalayan Blue Sheep

Botanical Name: Pseudorchis albida

Plant Type: Perennial

Hardiness Zones: 5-8 (USDA)

Sun Exposure: Partial Shade to Full Sun

The Himalayan Blue Sheep, sometimes called the Small White Orchid, has tiny blue blooms on thin stalks. It’s a pretty and uncommon species of orchid.

58. Blue Alkanet (Alkanna tinctoria)

Blue Alkanet

Botanical Name: Alkanna tinctoria

Plant Type: Perennial

Hardiness Zones: 3-8 (USDA)

Sun Exposure: Full Sun to Partial Shade

The blossoms of Blue Alkanet are a deep blue funnel-shaped flower with hairy leaves. It has therapeutic qualities and is often used for natural colouring.

59. Blue Larkspur (Delphinium variegatum)

Blue Larkspur

Botanical Name: Delphinium variegatum

Plant Type: Perennial

Hardiness Zones: 3-8 (USDA)

Sun Exposure: Full Sun

The long, blue blooms with white centre spikes of the Blue Larkspur. It’s a visually arresting shrub that adds vertical flair to cottage gardens.

60. Blue Chilean Crocus (Tecophilaea cyanocrocus)

Blue Chilean Crocus

Botanical Name: Tecophilaea cyanocrocus

Plant Type: Perennial Bulb

Hardiness Zones: 5-8 (USDA)

Sun Exposure: Full Sun to Partial Shade

The Blue Chilean Crocus has beautiful blue flowers with a yellow eye in the centre. For enthusiasts, this bulb plant is extremely rare and valuable.

61. Blue Star Creeper (Isotoma fluviatilis)

Blue Star Creeper

Botanical Name: Isotoma fluviatilis

Hardiness Zones: 5-9 (USDA)

Plant Type: Perennial

Sun Exposure: Full Sun to Partial Shade

The Blue Star Creeper has brilliant green foliage and small blue blooms in a dense mat. It works wonderfully to cover voids in walkways, in between stepping stones, and spilling over walls.

62. Blue Pea Vine (Clitoria ternatea)

Blue Pea Vine

Botanical Name: Clitoria ternatea

Plant Type: Vine

Hardiness Zones: 9-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

The Blue Pea Vine is a beautiful plant with fern-like foliage and indigo-blue blooms. It is a component of traditional medicine and food preparation. To climb it, you’ll need assistance.

63. Blue Jacaranda (Jacaranda mimosifolia)

Blue Jacaranda

Botanical Name: Jacaranda mimosifolia

Plant Type: Tree

Hardiness Zones: 10-11 (USDA)

Sun Exposure: Full Sun

The breath-taking blue jacaranda tree features fern-like leaves and profusions of lavender-blue blossoms. It grows best in warm climates and gives landscapes a hint of the tropics.

64. Blue Sage or Mealy Cup Sage (Salvia farinacea)

Blue Sage or Mealy Cup Sage

Botanical Name: Salvia farinacea

Plant Type: Perennial

Hardiness Zones: 8-10 (USDA)

Sun Exposure: Full Sun

Blue sage, also known as Mealy Cup sage, has upright stems bearing spike-like blue blooms. It is ideal for dry, sunny gardens and attracts bees and butterflies.

65. Blue Pimpernel (Anagallis monelli)

Blue Pimpernel

Botanical Name: Anagallis monelli

Plant Type: Perennial

Hardiness Zones: 7-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

The exquisite sky-blue flowers with a golden centre are displayed by the Blue Pimpernel. It grows best in well-drained soil and blooms abundantly in the spring and summer. It is perfect for rock gardens and edging.

66. Blue Puya (Puya coerulea)

Blue Puya

Botanical Name: Puya coerulea

Hardiness Zones: 8-11 (USDA)

Plant Type: Perennial

Sun Exposure: Full Sun to Partial Shade

The towering flower spikes of Blue Puya have brilliant blue blossoms and spiky blue-green leaves. It’s unusual and exotic, making it a great focal point for xeriscapes and desert gardens.

67. Perennial Geranium ‘Johnson’s Blue’ (Geranium spp)

Perennial Geranium ‘Johnson’s Blue’

Botanical Name: Geranium spp.

Plant Type: Perennial

Hardiness Zones: 4-8 (USDA)

Sun Exposure: Full Sun to Partial Shade

The vibrant blue, saucer-shaped flowers of the perennial geranium ‘Johnson’s Blue’ bloom above the foliage, which is deeply cut. It attracts butterflies with its abundance of blossoms in the spring and summer. Perfect for cottage gardens and borders.

68. Blue Thunbergia (Thunbergia grandiflora)

Blue Thunbergia

Botanical Name: Thunbergia grandiflora

Plant Type: Perennial Vine

Hardiness Zones: 9-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

The huge, sky-blue flowers of the Blue Thunbergia, also known as Sky flower, contrast sharply with their yellow centers. This vine grows quickly and gives arbours, fences, and trellises a tropical flair.

69. Blue Pea Bush (Strobilanthes cusia)

Blue Pea Bush

Botanical Name: Strobilanthes cusia

Plant Type: Shrub

Hardiness Zones: 10-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

Neela Kurinji, or Blue Pea Bush, displays spikes of indigo-blue flowers. This shrub, which is native to India, is uncommon and special since it only blooms once every 12 years and gives gardens an air of mystery.

70. Blue Hyssop (Hyssopus officinalis)

Blue Hyssop

Botanical Name: Hyssopus officinalis

Plant Type: Perennial

Hardiness Zones: 3-9 (USDA)

Sun Exposure: Full Sun

Small, tubular blue flowers grow in spikes on the blue hyssop plant. This aromatic herb is frequently used in traditional medicine and food preparation.

71. Blue Lovegrass (Eragrostis spectabilis)

Blue Lovegrass

Botanical Name: Eragrostis spectabilis

Plant Type: Perennial Grass

Hardiness Zones: 5-9 (USDA)

Sun Exposure: Full Sun

Blue lovegrass produces delicate, airy blue flowerheads and tufts of blue-green leaves. It gives gardens more movement and is resistant to drought.

72. Blue Lily (Agapanthus orientalis)

Blue Lily

Botanical Name: Agapanthus orientalis

Plant Type: Perennial

Hardiness Zones: 7-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

The tall stems of blue lilies display globular clusters of blue blossoms. They grow well in garden borders or pots and require little care. The soil should be well-drained for best growth.

73. Azure Aster (Aster azureus)

Azure Aster

Botanical Name: Aster azureus

Plant Type: Perennial

Hardiness Zones: 3-8 (USDA)

Sun Exposure: Full Sun

The lavender-blue, daisy-like flowers of Aster azureus have yellow centers. It’s the late-season blooming that gives autumn gardens a pop of colour. Its nectar-rich blooms attract butterflies. From late July until the first frost of the year, these flowers will be in bloom.

74. Blue Hibiscus (Alyogyne huegelii)

Blue Hibiscus

Botanical Name: Alyogyne huegelii

Plant Type: Shrub

Hardiness Zones: 9-11 (USDA)

Sun Exposure: Full Sun

The centre stamen of the big, blue-to-purple blossoms of the blue hibiscus is noticeable. Its bright, drought-tolerant foliage gives gardens a tropical feel that improves their aesthetic appeal.

75. Blue Rock Cress (Aubrieta deltoidea)

Blue Rock Cress

Botanical Name: Aubrieta deltoidea

Plant Type: Perennial

Hardiness Zones: 4-7 (USDA)

Sun Exposure: Full Sun

Falling gently over walls and rocks, blue rock cress creates a vibrant ground cover with bright blue flowers. It brings charm and vitality to rocky environments and alpine gardens alike.

76. Blue Fan Sage (Salvia patens)

Blue Fan Sage

Botanical Name: Salvia patens

Plant Type: Perennial

Hardiness Zones: 8-11 (USDA)

Sun Exposure: Full Sun

The foliage of Blue Fan Sage is fragrant and features velvety, deep blue blooms. It draws bees and hummingbirds and can withstand droughts. After flowering, prune to promote bushy growth.

77. Blue Corydalis (Corydalis flexuosa)

Blue Corydalis

Botanical Name: Corydalis flexuosa

Plant Type: Perennial

Hardiness Zones: 5-8 (USDA)

Sun Exposure: Full Sun to Partial Shade

Clusters of sky-blue, tubular flowers are produced by the blue corydalis. It likes partly shaded, damp, and chilly environments. It’s a fun accent to gardens with forests.

78. Blue-Eyed Grass (Sisyrinchium angustifolium)

Blue-Eyed Grass

Botanical Name: Sisyrinchium angustifolium

Plant Type: Perennial

Hardiness Zones: 4-9 (USDA)

Sun Exposure: Full Sun to Partial Shade

Observing in Blue Grass features blue, star-shaped flowers and thin, iris-like leaves. Though it bears the name, it’s not really grass. It works great in gardens for naturalizing and edging.

79. Blue My Mind Evolvulus (Evolvulus glomeratus)

Blue My Mind Evolvulus

Botanical Name: Evolvulus glomeratus

Plant Type: Perennial

Hardiness Zones: 9-11 (USDA)

Sun Exposure: Full Sun

A low-growing plant with sky-blue flowers and silver-green foliage is the Blue My Mind Evolvulus. It creates a stunning blue carpet in sunny areas and can withstand high temperatures.

80. Blue Wild Indigo (Baptisia Australis)

Blue Wild Indigo

Botanical Name: Baptisia Australis

Plant Type: Perennial

Hardiness Zones: 3-9 (USDA)

Sun Exposure: Full Sun

Blue Wild Indigo, sometimes called Blue False Indigo, has blue-green foliage and tall spikes of blooms that look like blue peas. It gives gardens a distinctive architectural aspect and is drought-tolerant.

81. Gentian (Gentiana)

Gentian

Botanical Name: Gentiana

Plant Type: Perennial

Hardiness Zones: 3-8 (USDA)

Sun Exposure: Full Sun to Partial Shade

The trumpet-shaped, deep blue gentian blossoms. Their ideal soil is damp but well-drained. Gentians’ bitter roots make them a popular ingredient in herbal therapy.

82. Blue Bamboo (Dendrocalamus strictus)

Blue Bamboo

Botanical Name: Dendrocalamus strictus

Plant Type: Clumping Bamboo

Hardiness Zones: 8-11 (USDA)

Sun Exposure: Full Sun to Partial Shade

The foliage of Blue Bamboo is luscious green with powdered blue culms. This bamboo type grows quickly and gives gardens and landscapes a sense of refinement and seclusion.

83. Blue Lupine (Lupinus angustifolius)

Blue Lupine

Botanical Name: Lupinus perennis

Plant Type: Herbaceous perennial

Hardiness Zones: 3-8 (USDA)

Sun Exposure: Full sun

The blue lupine is an excellent option if you want to include blue flowers that are tall.

84. Blue Tickseed (Coreopsis)

Blue Tickseed

Botanical Name: Coreopsis

Plant Type: Annuals, Perennials

Hardiness Zones: 4-9 (USDA)

Sun Exposure: Full Sun

A distinctive blue flower with a resilient nature is the blue tickseed. It creates beautiful garden borders and looks excellent in containers.

85. Blue Statice (Limonium sinuatum)

Blue Statice

Botanical Name: Limonium sinuatum

Plant Type: Herbaceous perennial

Hardiness Zones: 8-11 (USDA)

Sun Exposure: Full Sun

An annual plant called Blue Statice bears long, slender stem clusters of tiny, papery blue blooms.

86. Blue Foxglove (Digitalis purpurea)

Blue Foxglove

Botanical Name: Digitalis purpurea

Plant Type: Perennials

Hardiness Zones: 4-9 (USDA)

Sun Exposure: Full sun to light shade

With their ability to self-seed, foxgloves produce a breath-taking display of blue flowers every year.

87. Blue Creeping Phlox (Phlox stolonifera)

Blue Creeping Phlox

Botanical Name: Phlox subulata

Plant Type: Perennials

Hardiness Zones: 3-9 (USDA)

Sun Exposure: Full Sun

One excellent method for creating a beautiful ground cover is to plant blue creeping phlox. These gracefully tumble over walls and boulders.

88. Blue Water Hyacinth (Eichhornia crassipes)

Blue Water Hyacinth

Botanical Name: E. crassipes

Plant Type: Perennials

Hardiness Zones: 8-11 (USDA)

Sun Exposure: Full or partial sunshine

Beautiful blue-purple blossoms of the aquatic plant Blue Water Hyacinth float on the water’s surface. Nothing compares to these flowers’ beauty.

89. Catmint (Nepeta nervosa)

Blue Catmint

Botanical Name: Nepeta cataria

Plant Type: Perennial

Hardiness Zones: 3-9 (USDA)

Sun Exposure: Full Sun

Long-lasting blossoms and beautiful foliage characterize catmints. They have a long lifespan and a lovely appearance.

90. Clematis (Clematis)

Blue Clematis

Botanical Name: Clematis x jackmanii

Plant Type: Perennial

Hardiness Zones: 3-9 (USDA)

Sun Exposure: Full Sun

Big, eye-catching flowers in a variety of hues, such as pink, purple, blue, white, and red, are produced by clematis.

91. French Lavender (Lavandula stoechas)

French Lavender

Botanical Name: Lavandula angustifolia

Plant Type: Perennial

Hardiness Zones: 5-9 (USDA)

Sun Exposure: Direct Sunlight

Oxford blue’s beauty and scent can last for years in your garden with the right maintenance.

92. Russian Sage (Perovskia atriplicifolia)

Russian Sage

Botanical Name: Perovskia atriplicifolia

Plant Type: Perennial Shrub

Hardiness Zones: 4-9 (USDA)

Sun Exposure: Full Sun

The leaves of Russian sage are aromatic and silvery-grey. However, its towering spikes of lavender-blue flowers are the main attraction.

93. Summer Snapdragon (Angelonia)

Summer Snapdragon

Botanical Name: Angelonia

Plant Type: Annuals, Perennials

Hardiness Zones: 9-11 (UDSA)

Sun Exposure: Direct Sunlight

You could try growing summer snapdragon if you live in a sunny area. It will certainly flourish because it enjoys the heat.

94. Veronica Georgia Blue (Veronica peduncularis)

Veronica Georgia Blue

Botanical Name: Veronica peduncularis

Plant Type: Perennials

Hardiness Zones: 4-6 (USDA)

Sun Exposure: Full Sun

One particular type of Veronica is called “Veronica Georgia Blue,” and it is a low-growing, spreading groundcover with tiny, dark blue blooms.

95. Pansy (Viola odorata)

Pansy

Botanical Name: Viola tricolor var. hortensis

Plant Type: Shrub

Hardiness Zones: 2-11 (USDA)

Sun Exposure: Full Sun

Violina pansies are excellent choices for hanging baskets, containers, and garden borders. They are stunning with their bright centres and black petals.

96. Blue Dwarf Iris (Iris cristata)

Blue Dwarf Iris

Botanical Name: Iris reticulata

Plant Type: Perennial

Hardiness Zones: 5-8 (USDA)

Sun Exposure: Full Sun

A remarkable spring bulb, the little blue dwarf iris yields beautiful blue-purple flowers with yellow highlights.

97. Blue Sky Vine (Thunbergia grandiflora)

Blue Sky Vine

Botanical Name: Thunbergia grandiflora

Plant Type: Perennial

Hardiness Zones: 9-11 (USDA)

Sun Exposure: Full Sun

The breath-taking sky-blue flowers with black centres produced by the lovely and quickly spreading blue sky vine can be a wonderful addition to your lawns.

98. Blue Fringed Sage (Artemisia frigida Willd)

Blue Fringed Sage

Botanical Name: Salvia azurea

Plant Type: Shrub

Hardiness Zones: 5-9 (USDA)

Sun Exposure: Full Sun

A lovely and low-maintenance plant that may give your garden or landscape some colour and texture is blue-fringed sage.

99. Blue Daze (Evolvulus nuttallianus)

Blue Daze

Botanical Name: Evolvulus

Plant Type: Well Rooted Plant

Hardiness Zones: 8-11 (USDA)

Sun Exposure: Full Sun (Tolerate Some Shade)

You must plant blue dazes in your garden if you want to enjoy blue blossoms all summer.

100. Blue Mist Shrub (Caryopteris)

Blue Mist Shrub

Botanical Name: Caryopteris

Plant Type: Shrub

Hardiness Zones: 5-9

Sun Exposure: Full Sun

Soft blue flowers bloom in late summer and early autumn on the deciduous Blue Mist Shrub.

101. Beth’s Blue (Isotoma axillaries)

Beth’s Blue

Botanical Name: Isotoma axillaries

Plant Type: Perennial

Hardiness Zones: 8-10

Sun Exposure: Full Sun (+6 hrs.)

Beth’s blue looks fantastic in any landscape or garden. It draws pollinators like butterflies and bees and adds brilliant colour.

Conclusion

We hope you have gained more knowledge about these amazing plants after reading our post on our favourite blue flowers. It’s true that blue is a majestic, lovely colour that will infuse your landscape with vitality and happiness. Why not bring some of these amazing flowers into your home and see for yourself just how amazing they are now that you know the fundamentals of caring for many of them?

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