22 Stunning Blue Flowers for Your Garden

Kasey Spencer
Stunning Blue Flowers list

When we introduce blue flowers, gardens come alive with color. The soothing shades of blue uniquely charm our outdoor spaces, creating a tranquil and inviting atmosphere. From perennials to annuals, the variety of blue blooms ensures that we can enjoy these captivating colors throughout the growing season.

Why choose blue flowers for our garden? Blue flowers can bring a refreshing and serene quality, often reminding us of clear skies and calm waters. These plants enhance the visual appeal and attract beneficial pollinators like bees and butterflies. Let’s explore the stunning blue flowers that can transform our garden into a picturesque haven.

1. Blue Delphinium

Blue Delphinium
Image: Envato Elements
Flower NameBlue Delphinium
Scientific NameDelphinium spp.
Common NameLarkspur
Light NeedsFull Sun
Soil NeedsWell-draining, organic, moist
Zones3-7
AttractsHummingbirds, butterflies, bees

Blue delphiniums are captivating additions to any garden. They are known for their tall, spiky blooms that showcase vibrant shades of blue. The most popular varieties include ‘Cobalt Dreams,’ ‘Summer Blues,’ and ‘Blue Lace.’ They often stand as the centerpiece of early-summer perennial gardens.

These flowers flourish in full sun and well-draining soil. Blue delphiniums usually attract hummingbirds, butterflies, and bees, making our garden lively. Their need for organic and moist soil might require a bit of extra care.

We should remember that blue delphiniums prefer zones 3 to 7. The reward for nurturing these beauties is the stunning blue spires reaching towards the sky. Their elegant appearance makes them well worth the effort.

2. Blue Hydrangea

Flowers That Change Color with Age
Image: Envato Elements
AttributeDetails
SoilFertile, well-draining, rich in organic matter
Soil pHBelow 6.5 (acidic)
WaterConsistent moisture, avoid waterlogging
MulchOrganic mulch to retain moisture and regulate temperature
Height4-6 feet depending on variety
ZonesBest grown in USDA Zones 5-9

Blue Hydrangeas are a breathtaking addition to any garden. Their large, rounded flower clusters can be vibrant in color, making a striking visual impact. These flowers thrive in fertile, well-draining soil rich in organic matter.

To achieve the blue hue, the soil must be acidic, with a pH below 6.5. Regular, deep watering is essential, but we should avoid waterlogging. Mulching with organic materials helps retain moisture and regulate soil temperature, benefiting the hydrangea’s growth.

There are many blue hydrangea varieties. For instance, the ‘Penny Mac’ is known for its easy maintenance. Others like ‘Nikko Blue’ bloom multiple times throughout the year and retain their color well if the soil is kept acidic. Each variety offers unique characteristics and beauty to our garden.

3. Bluebell

bluebell flowers
Image: Envato Elements
ProfileDetails
Botanical NameHyacinthoides non-scripta
Common NameEnglish Bluebell
Bloom TimeLate spring to early summer
ExposurePartial shade
Height12″ to 18″ (30-45 cm)
Watering NeedsRegular
Soil TypeWell-drained

Bluebells are beautiful and captivating flowers. Known for their vibrant blue-violet, bell-shaped blooms, they add a touch of magic to any garden. They thrive in shady areas and can often be found carpeting woodland floors.

The English bluebell, or Hyacinthoides non-scripta, is especially popular. These flowers bloom in late spring and continue into early summer. Bluebells prefer well-drained soils and partial shade. They require regular watering, especially during hot, dry periods.

Scottish bluebells, on the other hand, are smaller but equally enchanting. Regardless of the variety, bluebells are a lovely addition to bring a natural woodland feel to our gardens.

4. Bachelor’s Button

Bachelor's Button
FeatureDetails
Common NameBachelor’s Button
Scientific NameCentaurea cyanus
Plant TypeAnnual
Flower ColorBright Blue
Light NeedsFull Sun
Water NeedsModerate, drought-tolerant
Soil TypeWell-draining
USDA Zones2-11
BloomsEarly Summer

Bachelor’s Button, also known as cornflower, is a favorite in cottage gardens. We love its bright blue, fringed flowers that add a splash of color to any space. These blooms can last for days in a vase, making them great for cut flower arrangements.

This flower thrives in zones 2-11 and is a rugged reseeding annual. It doesn’t need much care. We can sow the seeds either in early spring or fall, depending on our climate.

Bachelor’s Buttons are quite drought-tolerant once established. They do best with about an inch of water per week but can handle occasional watering. They prefer well-draining soil and full sun to perform their best.

5. Forget-Me-Not

Field of blue forget-me-not flower
Image: Envato Elements
FeatureDetails
Botanical NameMyosotis
ColorsBlue, pink, white
Sun ExposurePartial shade
Soil TypeCool, moist soil
Bloom TimeSpring
Height6-12 inches

Forget-me-nots are charming flowers known for their delicate, small blooms. They come in blue, pink, and white, but classic blue is the most popular. These flowers are easy to grow and prefer cool, moist soil in partial shade. Plant them in midsummer by directly sowing seeds in well-prepared soil. Once planted, they will bloom the following spring.

Forget-me-nots are perfect for garden beds, borders, and containers. They also add a lovely touch to bridal bouquets and can be a meaningful gift for loved ones. Let’s incorporate these lovely flowers into our garden for a touch of timeless beauty.

6. Blue Morning Glory

Heavenly Blue Morning Glory
CharacteristicDescription
Scientific NameIpomoea indica
Common NameBlue Morning Glory
Flower ColorBright blue, fading to pinkish purple
Bloom TimeLate spring to fall
Sun RequirementsFull sun
Soil RequirementsFertile, well-draining

Blue Morning Glory is a beautiful, twining evergreen vine. We can enjoy its lush, velvety, heart-shaped leaves and clusters of trumpet-shaped flowers. These flowers open bright blue in the morning and fade to a pinkish-purple by late afternoon.

The vines bloom continuously from late spring to fall. To plant them, we should choose a spot with full sun and fertile, well-draining soil. Soaking the seeds for 24 hours before planting helps them germinate faster.

7. Lobelia

Blue Lobelia floral plants
Image: Envato Elements
Plant Profile
Common NameLobelia
Botanical NameLobelia spp.
Flower ColorsBlue, Lilac, Rose, Burgundy, Sky-blue
Soil Temperature for Germination65-75°F
Watering NeedsEvenly moist soil
Special CareBottom watering or misting

Lobelia, with its striking blue blooms, adds a splash of color to our gardens. This plant is part of the Campanulaceae family and is valued for its vibrant cobalt-blue flowers. Lobelia comes in various species, most notably Lobelia erinus and Lobelia siphilitica. We often see it in shades of blue, but it can also be lilac, rose, or burgundy.

Planting lobelia is fairly simple. We should sow the seeds in a bright location. They require light to germinate, so we need to ensure a soil temperature of 65-75°F. A heat mat can help maintain this temperature.

Watering is crucial. It’s best to use bottom watering or a gentle mist to avoid disturbing the seeds. Keeping the soil evenly moist will promote healthy growth.

8. Blue Anemone

Bluestar Amsonia
Image: Envato Elements
FeatureDescription
Common NameBlue Anemone
Botanical NameAnemone spp.
Sun ExposureFull sun to partial shade
Soil pH5.5 – 7.5
Soil TypeWell-drained, moist
Bloom TimeSpring
Height10-19 inches
Hardiness Zones7-10
Native AreaMediterranean region

Blue Anemone is a charming flower known for its vivid blue petals and striking dark center. These flowers add a pop of color and elegance to any garden, making them a favorite among gardeners.

Blue Anemones thrive in well-drained, moist soil with a pH range of 5.5 to 7.5. They grow best in full sun to partial shade locations. Providing the right conditions ensures healthy growth and vibrant blooms.

This variety is easy to grow and can be a striking addition to spring landscapes. They bring harmony and visual appeal to flower beds and borders.

9. Blue Star Flower

Blue Star Flower

Blue Star Flower Plant Profile:

  • Scientific Name: Amsonia
  • Height: 2-3 feet
  • Spread: 2-3 feet
  • Bloom Time: Late spring to early summer
  • Sun Requirement: Full sun to partial shade
  • Soil Type: Well-drained
  • Water Needs: Moderate
  • Hardiness Zones: 3-9

Blue Star Flower is a lovely choice for gardens. Its delicate, star-shaped blue flowers bloom in clusters, creating a soothing effect. This plant prefers spots with ample sunlight and well-drained soil.

It’s a perennial that shows off its beauty in late spring and early summer. The foliage adds texture to the garden even after the flowers fade.

This flower is also drought-tolerant once established, making it a low-maintenance choice for any garden. We find that it pairs well with other perennials, bringing a wave of blue to our outdoor spaces.

10. Himalayan Blue Poppy

Himalayan Blue Poppy
Profile FeatureInformation
Scientific NameMeconopsis baileyi
Plant TypePerennial
Height3-5 feet (1-1.5 meters)
Flower ColorCool blue with yellow centers
Soil TypeWell-drained, fertile soil
Light RequirementsPartial shade
Water NeedsConsistently moist
Bloom TimeLate spring to early summer

The Himalayan Blue Poppy stands out with its striking cool blue flowers and bright yellow centers. These flowers, measuring around 3 to 4 inches wide, bloom from tall, erect stems. They can reach up to 3 to 5 feet in height.

This plant thrives in mountainous regions, especially at elevations of 3,000 to 4,500 meters. It can survive extremely cold temperatures, making it a unique addition to our gardens.

Growing Himalayan Blue Poppies isn’t easy. They need specific conditions, including consistent moisture during their growth and blooming phases. Keep them in partially shaded areas to avoid intense, direct sunlight.

When it comes to soil, these poppies prefer well-drained, fertile soil. Avoid letting them dry out completely, even in winter. Using peat pots can help minimize transplant shock if we’re starting from seeds.

11. Plumbago

Close-up of blue (Plumbago auriculata) flowers by a tree outside a building
Close-up of blue (Plumbago auriculata) flowers by a tree outside a building
Common NamePlumbago
Botanical NamePlumbago auriculata
Bloom TimeSpring to Fall
Flower ColorBlue, white, purple
Sun ExposureFull sun to partial shade
Soil TypeWell-drained
Soil pHSlightly acidic to slightly alkaline
Hardiness Zones8-11

Plumbago, often called leadwort, is a versatile plant that brings vibrant blue flowers to our gardens. Native to South Africa, it thrives in warm climates and can be grown as a shrub or vine. Plumbago flowers in shades of blue, and occasionally white or purple. The flowers attract butterflies and add a striking pop of color.

This plant prefers well-drained soil and should be watered regularly. When planting in containers, it’s essential to ensure good drainage. By giving Plumbago a sunny spot and adequate care, we can enjoy its beauty for much of the growing season.

12. Love-in-a-Mist

Love-in-a-Mist
Plant Profile
Common NameLove-in-a-Mist
Botanical NameNigella damascena
FamilyRanunculaceae
Height18-24 inches
Width12-18 inches
SunlightFull Sun
WaterMedium Moisture
SoilWell-Drained

Love-in-a-Mist, or Nigella damascena, enchants us with its delicate, ferny foliage and intricate, fluffy flowers. These blooms range from vivid blue to pink, lavender, and white. The plant grows well in both garden beds and containers.

This hardy annual thrives in cool weather and can reach heights of 18-24 inches. It flourishes in full sun and well-drained soil. Regular watering ensures healthy growth.

A standout feature is the unique, decorative seed pods, making it excellent for dried flower arrangements. With minimal pest issues, Love-in-a-Mist is a low-maintenance addition to our garden.

13. Bluebeard

Bluebeard flower
FeatureDetails
Botanical NameCaryopteris x clandonensis
Zones5-9
Height2-4 feet
Spread2-4 feet
Bloom TimeLate summer to early fall
Foliage ColorGray-green or golden
Flower ColorBlue to lavender
Sun RequirementsFull sun
Soil RequirementsWell-drained soil

Bluebeard, also known as Caryopteris, is a versatile and eye-catching plant for our gardens. This small shrub is known for its stunning blue to lavender flowers, which bloom from late summer to early fall. The flowers attract pollinators like bees and butterflies, making our garden lively and vibrant.

The foliage of Bluebeard is usually gray-green or golden, adding a contrasting backdrop to its bright blue flowers. It thrives in full sun and well-drained soil, making it easy to grow in various settings.

14. Blue Flax

Blue Flax
Image: Envato Elements
Flower NameBlue Flax
Botanical NameLinum perenne
USDA Zones5 – 8
Sun RequirementsFull Sun to Partial Shade
Soil PreferenceWell-draining, sandy, rocky
Watering NeedsLow to Medium
Height18 – 24 inches

Blue Flax, or Linum perenne, is a beautiful perennial known for its delicate, sky-blue flowers. This hardy plant thrives in USDA zones 5 through 8. It’s both cold-hardy and heat-tolerant, making it perfect for various climates.

Blue Flax prefers full sun but can tolerate partial shade. It needs at least six hours of direct sunlight each day for optimal growth. Well-draining soil is a must; sandy or rocky conditions are ideal.

Its water needs are low to medium, and it’s fairly drought-tolerant once established. With its low maintenance requirements, Blue Flax is an excellent addition to any garden.

15. Glory-of-the-Snow

Glory-of-the-Snow
FeatureDescription
Scientific NameChionodoxa
Common NameGlory-of-the-Snow
Bloom TimeEarly Spring
Flower ColorBlue, Pink, White
Height4-6 inches
Light RequirementsFull Sun to Partial Shade
Soil TypeWell-drained, Rich Soil

Glory-of-the-Snow, known scientifically as Chionodoxa, is one of the earliest blooming flowers in spring. This bulbous perennial showcases star-shaped blossoms in shades of blue, pink, or white. The blooms have six petals and a white center, creating a striking contrast against the flower’s vibrant color.

We often plant Glory-of-the-Snow bulbs in the fall. These bulbs do best in well-drained soil and full to partial sunlight. It’s crucial to keep the soil moist but not waterlogged to avoid root rot.

These charming flowers grow 4-6 inches tall and spread easily, creating a beautiful carpet of color. They are perfect for borders, rock gardens, or naturalizing in lawns.

16. Blue Balloon Flower

Blue Balloon Flower
Balloon flowers
FeatureDescription
Botanical NamePlatycodon grandiflorus
Common NameBlue Balloon Flower
Flower ColorVibrant Blue
Bloom TimeMid to late summer
Sun ExposureFull sun to partial shade
Soil TypeWell-drained soil
Plant HeightUp to 3 feet tall
Plant SpreadAbout 1-1.5 feet wide

The Blue Balloon Flower, known scientifically as Platycodon grandiflorus, is a charming addition to our gardens. It features vibrant blue, bell-shaped flowers that bloom in mid to late summer.

Each flower bud resembles a small balloon that pops open into a star shape. This makes them a delight to watch as they bloom. We find this plant easy to grow and maintain. It thrives in full sun to partial shade and well-drained soil.

Incorporating Blue Balloon Flowers into our garden can add a touch of whimsy and beauty.

17. Blue-Eyed Grass

Blue-Eyed Grass
FeatureDetail
Common NameBlue-Eyed Grass
Botanical NameSisyrinchium spp.
Plant TypePerennial
Mature Size6-18 inches
Sun ExposureFull Sun to Part Sun
Soil TypeWell-drained, nutrient-rich
Bloom TimeLate Spring to Early Summer
Flower ColorBlue or Violet
Native AreaNorth America

Blue-eyed grass is a charming perennial that adds a touch of elegance to any garden. Despite its name, it’s not grass but part of the iris family. This plant typically grows to be 6 to 18 inches tall, with narrow, grass-like leaves forming clumps.

The delicate blue or violet flowers usually bloom in late spring to early summer. These flowers create a striking contrast against the green foliage. Blue-Eyed Grass prefers well-drained, nutrient-rich soil that is slightly acidic. It thrives in full sun to part sun.

For the best results, we should water it regularly during the first growing season. A 2-inch layer of mulch around the plants helps retain soil moisture. This delightful plant is well-suited for borders, edges, and planters.

18. Blue Mist Shrub

Blue mist shrub
FeatureDescription
Common NameBlue Mist Shrub, Bluebeard
Botanical NameCaryopteris x clandonensis
Plant TypeShrub
Mature Size2-3 feet tall and wide
Sun ExposureFull Sun
Soil TypeWell-draining, loose, loamy soil
Bloom TimeLate Summer to Fall
Flower ColorBlue
Hardiness Zones5-9

The Blue Mist Shrub, also known as Bluebeard, is a compact and attractive plant. It features soft gray-green foliage and clusters of vivid blue flowers. This shrub is a delightful addition to any garden, particularly for those looking to add some cool-toned color.

This plant grows to about 2 to 3 feet in both height and width. It thrives in sunny locations with well-draining, loamy soil. In the late summer and fall, the Blue Mist Shrub’s flowers attract butterflies and other pollinators, adding life to our garden.

There are many varieties of Blue Mist Shrubs, each with unique characteristics. Some popular types include ‘Longwood Blue’ and ‘Dark Knight,’ known for their intense blue blooms.

19. Azure Monkshood

Monkshood flowers
Image: Envato Elements
FeatureDescription
NameAzure Monkshood
Scientific NameAconitum fischeri
Bloom TimeLate Summer to Late Fall
Foliage ColorPurple-Blue
Height2-4 feet
Sun RequirementsPartial Shade
LightFull sun to partial shade
WateringModerate
Soil RequirementsWell-drained
ToxicityYes (all parts)

Azure Monkshood stands out with its enchanting purple-blue flowers. Native to Korea and Siberia, this perennial adds vibrant color to any garden. It blooms from late summer to late fall.

The deeply lobed leaves are dark green and provide a beautiful contrast to the flowers. Monkshood’s tall, sturdy stems make it an excellent choice for borders or as a focal point It’s crucial to handle Monkshood with care, as all parts of the plant are toxic. Using gloves is recommended when planting or pruning.

20. Bluestar Amsonia

Bluestar Amsonia
FeatureDescription
Plant TypePerennial
Height2-3 feet (60-90 cm)
Spread2-3 feet
Foliage ColorGreen (turns gold in fall)
Flower ColorBlue
Soil RequirementsWell-drained
LightFull sun to partial shade
WateringRegular, moist but not soggy soil

Bluestar Amsonia is a beautiful perennial that adds charm to any garden. We love its star-shaped blue flowers that bloom in spring, creating a striking visual display.

This plant has an upright, bushy growth habit, reaching heights of 2-3 feet. Its lance-shaped, willowy foliage provides a lush, green backdrop that turns vibrant gold in the fall.

Amsonia is easy to care for. It thrives in well-drained soil and can handle both full sun and partial shade. Water it regularly, but make sure the soil is not soggy. Bluestar Amsonia is versatile and can fit into different garden styles, making it a wonderful addition to our plant collection.

21. Bugleweed

Ajuga (Bugleweed)
Image: Envato Elements
FeatureDescription
Botanical NameAjuga reptans
Common NameBugleweed
Flower ColorsBlue, purple-blue
Bloom TimeSpring, sporadically in summer/fall
Light RequirementsFull sun to part shade
Soil pH5.5 to 7.1
HeightUp to 6 inches
Water NeedsModerate

Bugleweed, also known as Ajuga, is a favorite for those who have shaded gardens. This perennial ground cover is loved for its dense foliage and bright blue-purple flower spikes.

Bugleweed thrives in shaded spots, making it perfect for areas where other plants might struggle. It can grow in both sun and shade, adapting well to different light conditions.

In the spring, Bugleweed blooms with striking blue flowers that rise about 6 inches tall. It may also continue to bloom sporadically throughout the summer and fall.

We find Bugleweed is easy to care for and can add a splash of color to our gardens with minimal effort.

22. Blue Blazing Star

Blue Blazing Star
AspectDetails
Botanical NameLiatris spicata
Common NameBlue Blazing Star
Sun RequirementsFull Sun
Height18-30 inches
Hardiness Zones3-9
Flower ColorBlue
Bloom TimeSummer to Fall
Water RequirementsModerate

The Blue Blazing Star, also known as Liatris spicata, adds vibrant color to our gardens. This flowering plant is cherished for its spiky, tall blooms that attract pollinators like butterflies and bees.

These perennials thrive in USDA hardiness zones 3 to 9. They prefer full sun and well-drained soil. The narrow, grassy leaves complement the striking blue flowers, creating a stunning display.

We can plant the tuberous roots about five inches deep in a starburst pattern and space them 8-16 inches apart. With their easy-to-grow nature, they are perfect for adding beauty to any wildflower, cottage, or butterfly garden.

Designing Your Garden With Blue Flowers

When designing a garden with blue flowers, it’s essential to consider color coordination, seasonal planning, and complementary plants. These factors help create a cohesive, vibrant space that changes beautifully with the seasons.

Color Coordination

Using blue flowers in your garden allows us to create a serene and cohesive design. We can use different shades of blue to bring depth and interest. For example, combining light blue hydrangeas with dark blue salvias provides a stunning contrast. Pairing blue flowers with whites, yellows, and purples can enhance their beauty. A mix of blue delphiniums, white daisies, and purple lavenders results in a harmonious arrangement.

To design the layout, we might group flowers in clusters to emphasize specific areas. Another idea is to create a blue color-themed garden. We can use borders, pathways, and planters to define these zones, helping the garden remain organized and visually appealing.

Seasonal Planning

Seasonal planning ensures that our garden remains vibrant throughout the year. We can choose blue flowers that bloom at different times. For instance, planting grape hyacinths for early spring, followed by summer bloomers like agapanthus, and ending with fall asters, keeps the garden lively across the seasons.

Knowing plant hardiness zones helps us select flowers that thrive in our region. Blue flowers like Veronica longifolia bloom in summer and grow well in zones 4-9. By selecting plants suited to our climate, we ensure they blossom at optimal times, providing consistent garden beauty.

Complementary Plants

Complementary plants enhance the overall look of our blue flower garden. We can pair early-blooming geraniums with spring bulbs like crocuses and grape hyacinths. These additions provide early color before the blue flowers begin blooming.

In late summer, adding white daffodils around our blue flowers can create a striking contrast. Green foliage plants, such as hostas, add texture and depth to our garden.

By selecting plants that complement our blue flowers, we create balanced, attractive garden beds. Paying attention to plant height, texture, and bloom time ensures a cohesive and visually appealing design.

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