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Browse Plants

Narrowed By:Zone: 1, 9+ Characteristics: Attracts Butterflies+ Flower Color: Blue+ Light: Full Sun to Part Shade
Displaying 1 - 16 of 16 listings   Sort By: Sort
Agastache ‘Blue Fortune’ Agastache ‘Blue Fortune’
(Blue Fortune hyssop)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Blue Fortune' produces spikes of powder-blue flowers held over large, deep green foliage. The plant stands approximately 36 inches tall with a mature width of 18 inches. Peak bloom occurs in midsummer when butterflies are plentiful.

Aster tataricus Aster tataricus
(Tatarian aster)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Tatarian aster is an impressive, stately perennial with a flowering height of 3 to 6 feet. It can look you in the eye yet require no staking. More important, this aster flowers longer than any other garden aster, beginning in late September and early October and continuing into November. The 1-inch-wide, light lavender flowers are a magnet for local and migrating monarch butterflies. This plant tolerates many soil types, can form large colonies in a few years, and is easily divided.

Baptisia australis Baptisia australis
(blue false indigo, Plains false indigo)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

False blue indigo's spikes of clear blue flowers in late spring can nearly carry a border by themselves. They also make great cut flowers. Large, inflated nearly black seed pods set in after flowering, giving this plant another interesting element. It is low maintenance and will look great in any natural or informal setting.

Caryopteris × clandonensis 'First Choice' Caryopteris × clandonensis 'First Choice'
(Blue beard, Blue-mist shrub)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'First Choice' is ideal for a mixed or shrub border. It's an attractive woody shrub with dark green leaves, dark purplish blue flowers, and a compact habit. Misty blue flowers appear in late summer and early autumn.This plant is relatively drought tolerant and very heat tolerant. The shrub expands as branches that touch the ground form their own roots and may self-seed.

Caryopteris × clandonensis 'Worcester Gold' Caryopteris × clandonensis 'Worcester Gold'
(Blue beard, Blue-mist shrub)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Worcester Gold' is an attractive, mounding, woody shrub with warm yellow to chartreuse foliage and lavender-blue flowers in late summer and early autumn. The flowers are fragrant and attractive to bees and butterflies. The foliage is also aromatic. It is ideal for a mixed or shrub border.

Ruellia brittoniana 'Purple Showers' Ruellia brittoniana 'Purple Showers'
(Mexican petunia, Common ruellia, Wild petunia)
(7 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This three-foot-tall evergreen shrub bears many tubular, blue or purple, petunia-like flowers on dark stems over a long period. Each flower lasts for just one day. It is a fast grower that may self-seed aggressively. Use in a border, container, or at waterside. Can be grown as an annual in cooler areas.

Salvia azurea Salvia azurea
(Pitcher sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Pitcher sage is a wonderful wildflower found growing over a wide area of the Great Plains. Blooming in late summer and early fall, this perennial is admired for its sky blue flowers and remarkable xeric qualities. This salvia grows to 30 to 36 inches in height, but may be pinched back for bushier growth.

Salvia chamaedryoides Salvia chamaedryoides
(Germander sage, Mexican blue sage)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This choice species boasts narrow, downy sage-green leaves and true sky-blue blossoms from summer to fall. It has woody stems and forms a beautiful specimen 12 inches tall by 18 inches wide.

Salvia farinacea Salvia farinacea
(Mealycup sage)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This perennial forms a shrubby upright clump 2 feet tall by 1 foot wide, with white mealy stems and glossy green leaves. It bears deep, lavender-blue flowers on tall spikes from early summer to frost. Salvias are some of the showiest plants for containers, annual borders, and mixed borders. Butterflies and hummingbirds love them. 

Salvia farinacea 'Victoria' Salvia farinacea 'Victoria'
(Mealycup sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This compact perennial forms a bush less than 1.5eet tall by 1 foot wide, with indigo stems and glossy green leaves. It bears deep, navy blue flowers on medium spikes from early summer to frost.

Salvia guaranitica Salvia guaranitica
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This perennial produces long spires of large, deep blue flowers from mid-summer to frost. It forms a tall bush 6 feet tall by 2 feet wide that is great for the back of the border. It is drought tolerant because of its unusual, moisture-conserving rhizomes.

Salvia jurisicii Salvia jurisicii
(Yugoslavian cutleaf sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This sage is eye-catching in and out of bloom, with its attractive basal rosette of feathery foliage and showy display of dense flower spikes. The flowers come in shades of blue, white, and light pink, but the dark blue strain (S. jurisicii 'Blue') is the most desirable. Best planted in enriched garden loam, Yugoslavian cutleaf sage blooms in late spring.

Salvia mexicana 'Limelight' Salvia mexicana 'Limelight'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This unusual tender perennial displays an electric color combination when its vibrant purple-blue flowers open from bright chartreuse calyces.  Fortunately, glossy, bright green leaves hold their own until the show gets started in August (and continues until frost). It forms a tall bush, 6 feet tall by 6 feet wide, which is great for the back of the border. Salvias are some of the showiest plants for containers, annual borders, and mixed borders. Butterflies and hummingbirds love them. 

Salvia officinalis 'Minimus' Salvia officinalis 'Minimus'
(Dwarf common sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Dwarf common sage is a tightly compact form of the culinary common sage (S. officinalis), which is notable for its narrow, fragrant, gray-green leaves and lavender-blue, white-lined flowers in late spring or early summer. It is extremely xeric and does not self-seed. 'Minimus' grows to just 15 to 18 inches tall.

Stachytarpheta urticifolia Stachytarpheta urticifolia
(Blue porter weed, Blue rat's tail, Nettleleaf velvetberry)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This pest-free perennial blooms best during warm months. It is strange how these small blue flowers attract butterflies more than large-blooming, showy neighbors. Blue porter weed gradually reseeds nearby for a fresh batch of new plants. Mix with other species of Stachytarpheta for a variety of leaf shapes and colors ranging from purple to coral.

Vitex agnus-castus var. latifolia Vitex agnus-castus var. latifolia
(Chaste tree)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Chaste tree is a southern favorite beginning to gain favor across the country. Whether left to grow as a large, multistemmed shrub or cut back annually for a more compact look, this selection is a winner. Fine, lacy leaves are glossy and green. Bright blue flower panicles begin to form in early summer and continue through the heat of the season and into fall. This is a reasonably cold-hardy, deer-resistant woody plant, and while V. agnus-castus is typically considered a Zone 7 plant, the variety latifolia can be grown in Zone 6 and even in southern areas of Zone 5.


Displaying 1 - 16 of 16 listings   Sort By: Sort