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Browse Plants

Narrowed By:Zone: 10+ Characteristics: Attracts Butterflies+ Flower Color: Purple/Lavender+ Seasonal Interest: Summer
Displaying 1 - 20 of 22 listings   1 | 2View AllNext > Sort By: Sort
Agastache foeniculum Agastache foeniculum
(Anise hyssop)
(2 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

A classic plant for both herb gardens and borders, anise hyssop is composed of erect branches of mint-and-licorice-scented, medium green leaves ending in fuzzy spikes of small lavender flowers. The plant grows to 3 to 5 feet tall and 1 foot wide and reseeds freely. The flowers are edible and are charming crumbled into salads. The flowers are highly attractive to bees, butterflies, and hummingbirds.

Agastache rupestris Agastache rupestris
(Sunset hyssop)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

True to its name, sunset hyssop encapsulates a Western sunset in its flowers: bronze with hints of orange and yellow, and streaks of magenta and pink along the margins. More and more flowers emerge as summer progresses. The plant blooms heavily in August, and continues into autumn.

Ageratum houstonianum Ageratum houstonianum
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

There are many cultivars available of this fast-growing annual. They are best used as bedding, edging, or container plants. Panicles of blue, pink, purple, or white flowerheads arise from oval, downy leaves in midsummer and continue until frost. They have a soft, fuzzy appearance and attract butterflies.

Allium giganteum Allium giganteum
(Ornamental onion)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In summer, this plant bears large rounded flower heads up to 4 inches across with a multitude of star-shaped lilac-pink flowers.

Allium senescens Allium senescens
(Ornamental onion)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This plant has thin, strap-like foliage that tends to twist. It produces up to 30 long-lasting, 12- to 40-inch-tall pink or lilac flowers in mid- to late summer.

Calamintha nepeta Calamintha nepeta
(Lesser calamint)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Lesser calamint produces fine, upright stems which are covered with small, shiny, dark green leaves, forming a little bush from 12 to 18 inches tall, and twice as wide. In late August, it produces a cloud of infinitesimal pale lavender flowers that continue blooming for up to six weeks. As the days become cooler, the color of the tiny, lipped blossoms deepens.

Heliotropium arborescens 'Marine' Heliotropium arborescens 'Marine'
(Heliotrope, Cherry pie)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Marine' heliotrope has a compact form with broadly oval to lance-shaped, wrinkled leaves tinged with purple. In summer, it bears a profusion of fragrant deep violet-blue flowerheads up to 6 inches across.

Heliotropium arborescens cvs. Heliotropium arborescens cvs.
(Heliotrope, Cherry pie)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Heliotrope has a compact form with broadly oval to lance-shaped, wrinkled leaves tinged with purple. In summer, it bears a profusion of deep violet-blue or lavender-blue flowerheads up to 6 inches across. Cultivars vary in height as well as bloom fragrance and color.

Nepeta × faassenii 'Walker's Low' Nepeta × faassenii 'Walker's Low'
(Catmint)
(11 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This mound of lavender-blue flowers and aromatic, grayish green leaves up to 2 feet tall and 3 feet wide is great as edging or in a border, herb, or rock garden. It is an easy to grow, prolific bloomer that seems to be deer resistant. It blooms the whole summer and tolerates some shade. It also looks great with roses or on walls.

Ocimum basilicum Ocimum basilicum
(Basil, Sweet basil)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

The herb of kings combines superbly with roses. Different cultivars vary in leaf shape, scent, and color, from green to deep purple, with blue, white, burgundy, or pink flowers.

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 'Indigo Spires' Salvia 'Indigo Spires'
('Indigo Spires' sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

'Indigo Spires' sage is a vigorous hybrid prized for its 12- to 15-inch-long, twisting spikes of dark violet flowers. It is a non-stop bloomer from early summer through fall. Blooming can be further encouraged by pinching stem tips early in the growing season and deadheading the spikes once they fade. 'Indigo Spires' quickly grows to 4 feet high, and can be grown as an annual where not hardy.  

Salvia canariensis Salvia canariensis
(Canary Island sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This short-lived, tender perennial shrub native to the Canary Islands off the African coast sends up 6-foot white-furred stems cloaked with long, felted, arrow-shaped leaves and topped, summer to frost, with plumes of purplish violet flowers clasped by red-tipped calyxes. It grows up to 4 feet wide.

Salvia discolor Salvia discolor
(Andean silver-leaf sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This tender perennial from Peru is highly unusual for its dramatic, purple-black flowers and pistachio-green calyces. The flowers appear from late summer to early fall. The drama is heighted by its contrasting silvery leaves and stems, which are densely cloaked in woolly, white hairs. Plants grow to about 18 inches tall and 12 inches wide. This specimen looks great tumbling over the edge of a container.

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

This native of Texas and Mexico has a woody base and can form a dwarf, evergreen shrub, 1 foot tall by 1 foot wide. It has small, leathery leaves and bears bright flowers in shades of pink, purple, or yellow from early summer to frost.

Salvia leucantha Salvia leucantha
(Mexican bush sage)
(8 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This downy, bushy, evergreen subshrub produces white or purple flowers clasped by soft purple calyces from late summer to frost. It grows 3 feet tall by 3 feet wide, and is great for the border. Salvias are some of the showiest plants for containers, annual borders, and mixed borders. Butterflies and hummingbirds love them. 

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. 

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.


Displaying 1 - 20 of 22 listings   1 | 2View AllNext > Sort By: Sort