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Browse Plants

Narrowed By:Characteristics: Attracts Butterflies+ Flower Color: Blue
Displaying 41 - 56 of 56 listings   < Prev1 | 2 | 3View All Sort By: Sort
Salvia hians Salvia hians
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This short-lived perennial from the Himalayas has scented, hairy leaves and forms a small shrub 2 feet tall by 2 feet wide. It bears 1.5-inch-long purplish-blue flowers with white lips (called bee lines) from early to late summer. The flowers are clasped by rusty colored calyxes that accent color of the blooms. Salvias are some of the showiest plants for containers, annual borders, and mixed borders. Butterflies and hummingbirds love them. 

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 nemorosa 'Caradonna' Salvia nemorosa 'Caradonna'
(Sage)
(5 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This drought-tolerant perennial is noted for its vivid indigo flowers along deep purple-black stems, which gives it a bicolor appearance. It blooms in early summer and then sporadically if spent flowers are deadheaded. It forms an upright clump, with the flower spikes rising to 2 feet in height; its wrinkled, softly hairy leaves form a mound 1 foot high. Plants spread 1 or 2 feet wide. These are some of the showiest plants for containers and mixed borders. Butterflies 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.

Salvia pachyphylla Salvia pachyphylla
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Giant-flowered purple sage has been winning over gardeners the past few years for its remarkable summer blooms and tough-as-nails demeanor. Native to the dry foothills and mountains of southern California, this sage is considered a woody shrub. It features showy, aromatic silver foliage and bicolored flower spikes with lavender-purple calyces and long, hummingbird-pollinated blue flowers. It grows from 24 to 36 inches high.

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

This moisture-loving perennial produces clear blue flowers with white highlights in late summer to mid-autumn. It forms an airy clump to 6 feet tall by 3 feet wide, and is great for the back of a border. It is tolerant of heavy soils.

Scabiosa ‘Butterfly Blue' Scabiosa ‘Butterfly Blue'
(Pincushion flower)
(3 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This Scabiosa cultivar is a compact perennial with gray-green leaves and a long bloom period featuring pretty lavender-blue flowers that look like pincushions surrounded by frilly petals. It's nice when used as edging or in large groups in borders or rock gardens.

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.

Trachelium caeruleum Trachelium caeruleum
(Blue throatwort)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species bears dome-shaped flower heads several inches across that are crowded with tiny, tubular amethyst or white flowers that look somewhat like the blooms of an allium. It has lance-shaped, toothed leaves in hues of cordovan purple or deep green brushed with plum highlights. It blooms over a long season. Though it is a perennial, blue throatwort performs wonderfully as an annual and blooms summer to fall. Plants grow to about 3 feet tall and wide.

no image available Veronica peduncularis 'Georgia Blue'
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Georgia Blue' forms beautiful mats of purple-tinged leaves. In spring, this free-flowering groundcover boasts abundant iridescent blue flowers. It grows to about 9 inches high and a foot wide. It is a vigorous and easy-to-grow cultivar.

Veronica umbrosa 'Georgia Blue' Veronica umbrosa 'Georgia Blue'
('Georgia Blue' speedwell)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This tough, versatile plant requires little maintenance. 'Georgia Blue' is willing to grow in sunny or shady spots, puts up with excessive rain or drought conditions, and attracts butterflies with a low blanket of sky blue flowers from spring into summer. Small, dark green leaves turn glossy burgundy in winter. Use it in containers or rock walls, or as a companion groundcover to spring bulbs under trees.

Veronicastrum virginicum Veronicastrum virginicum
(Culver's root, Bowman's root)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species has multiple tapering, soft spikes of white to pale pink or bluish purple flowers that look like elegant, living candelabras. The blooms reach 4 feet or more, adding a vertical accent to the back of a mixed border or wild garden from mid-summer to early autumn. Plants spread to about 3 feet.

Viola ‘Etain’ Viola ‘Etain’
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A hardworking, compact perennial, ‘Etain’ violet forms well-behaved clumps and blooms from time to time from spring through fall. The attractive, fleshy, bright green foliage needs protection from slugs. -Sylvia Matlock, Regional Picks: Northwest, Fine Gardening issue #127

no image available Vitex agnus-castus
(Chaste tree, Monk's pepper)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This small tree boasts an upright, spreading form and finely dissected gray-green foliage. Its spiky lilac-blue flowers appear from June through September; bloom can be prolonged by deadheading. Chaste tree can grow to 20 feet in southern climates, but in colder areas only 8 to 10 feet.

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 41 - 56 of 56 listings   < Prev1 | 2 | 3View All Sort By: Sort