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Browse Plants

Narrowed By:Zone: 7+ Tolerance: Deer Tolerant+ Flower Color: Purple/Lavender+ Seasonal Interest: Summer
Displaying 1 - 20 of 34 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 foeniculum 'Golden Jubilee' Agastache foeniculum 'Golden Jubilee'
(Anise hyssop)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Anise hyssop has subtle but eye-catching chartreuse foliage. Its powder-blue, long-lasting flowers contrast nicely with its leaves.

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

This is the last of the ornamental onions to flower, when mop-like heads of rose-purple flowers appear with orange anthers. The flowers are impervious to frost or snow. Superior cultivars include ‘Ozawa’, with larger purple flower heads than the species. A white-flowered form known as A. thunbergii ‘Alba’ is a splendid plant, with cup-shaped florets sporting white stamens, yellow anthers, and green centers.

Bouteloua gracilis Bouteloua gracilis
(Blue grama, Signal-arm grass, Mosquito grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Blue grama is a perennial grass from the Americas bearing unusually bent and flattened inflorescences. Being native to open grasslands, they are drought tolerant and at home in meadows. They provide the garden with shades of tan that persist throughout winter. 

Buddleia davidii Buddleia davidii
(Butterfly bush, Summer lilac)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This sun-lover comes in hues from pure white to deepest purple. From midsummer until frost, butterfly bush earns its name as hordes of winged beauties flit from flower to flower in search of nectar. The lanceolate leaves are 10 to 12 inches long and white or grayish underneath. The honey-scented flowers are deep purple and grow in spikes, from July to October.

Calamagrostis 'Karl Foerster' Calamagrostis 'Karl Foerster'
(Karl Foerster feather reed grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This versatile ornamental grass has slender, upright, deep-green foliage. A cool season grass, it is upright and clump forming, with purplish-green, feathery plumes that can reach 6 feet in height. It blooms in early summer rather than fall and must have winter chill to bloom.



Information provided by Santa Rosa Gardens.

Clematis integrifolia Clematis integrifolia
(Solitary clematis)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

Clematis integrifolia is a herbaceous, woody-based, upright, non-climbing perennial with a dense and somewhat sprawling habit. It bears solitary, nodding, bell-shaped flowers with slightly twisted violet to blue sepals and creamy white anthers from May to July. Sporadic blooming sometimes occurs throughout the summer. Blossoms mature to attractive, feathery, silver-green, or silvery brown seed heads.

no image available Echinacea angustifolia
(Coneflower)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This native meadow perennial has daisy-like blossoms in early summer. It bears copper-orange central cones surrounded by short, arching, ray petals in pink or purple-pink, and occasionally white.

Euphorbia dulcis 'Chameleon' Euphorbia dulcis 'Chameleon'
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This notable species produces erect stems of bronzy burgundy leaves and purple-green bracts in early summer. It looks exceptional when placed near contrasting plants. The foliage may be cut back after flowering to produce fresh growth.

Festuca glauca 'Elijah Blue' Festuca glauca 'Elijah Blue'
(Blue fescue, Gray fescue)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

These compact tufts of 8-inch-long powder-blue leaves are well suited for edging and naturalizing in the rock garden. 

Lavandula × intermedia 'Grosso' Lavandula × intermedia 'Grosso'
('Grosso' lavender)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This hardy lavender stands out for its unusually large, dark blue-purple flowers, silvery green foliage, and heavy fragrance. It is often used in perfumes. Growing to 30 inches tall and nearly as wide, 'Grosso'  has very long flower spikes and blooms from midsummer into autumn. It is especially attractive as an edging.

Lavandula angustifolia Lavandula angustifolia
(English lavender)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

English lavender has silvery gray, aromatic foliage topped in summer with lavender-blue to dark purple flowers on long stems.

Liatris spicata 'Kobold' Liatris spicata 'Kobold'
(Blazing star, Gayfeather)
(5 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This cultivar of a U.S. prairie plant offers the garden spikes of purple, fuzzy-looking flowers that open from the top down on plants up to 2 feet tall and 18 inches wide. The show starts in late summer and attracts butterflies and bees. Grow it in a moist meadow or border. The flowers are also beautiful in a vase.

Muhlenbergia capillaris Muhlenbergia capillaris
(Muhly grass)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

In autumn, this unique specimen creates a spectacular, billowy inflorescence of massed, vibrant pink, airy flowers on 4-foot stems. It is noted for its tolerance to poorly drained soil. It is possibly hardy to Zone 6 with protection.

Muhlenbergia lindheimeri Muhlenbergia lindheimeri
(Lindheimer's muhly)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This beautiful warm-season grass produces attractive, pale purplish-gray plumes in autumn and goes dormant in the cold season. It forms a neat, upright clump with fine blue-gray foliage.

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.

Pennisetum alopecuroides Pennisetum alopecuroides
(Fountain grass)
(1 user review)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This species produces 2- to 5-foot-tall mounds of narrow green foliage and bottle brush-like silvery-pink to purple flowers, both of which mature to shades of brown. It is the parent of numerous cultivars with notable flowers that range from purple to gray/black. It and some of its cultivars self-sow plentifully in warm climates. It is marginally hardy in Zone 5.

Saccharum ravennae Saccharum ravennae
(Ravenna grass)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This large, clump-forming grass has linear leaves with central white stripes. In late summer it bears huge, purplish-bronze flower clusters, which eventually fade to silver. It resents high fertility and shows considerable drought tolerance.

Salvia × superba Salvia × superba
(Hybrid sage)
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Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This hybrid of S. nemorosa and S. sylvestris is a drought-tolerant perennial that lends vivid purple-blue hues to the garden from summer to early fall on 1.5- to 3-foot-tall spikes. Deadheading prolongs bloom. The spikes rise from a clump of silvery green leaves that grows to about 2 feet tall and wide.

Salvia × sylvestris 'May Night' Salvia × sylvestris 'May Night'
(Meadow sage)
(5 user reviews)
Hardiness Zones: 1 2 3 4 5 6 7 8 9 10 11

This drought-tolerant perennial bears deep violet-blue flower spikes in early summer and then sporadically if spent flowers are removed promptly. It forms an erect clump 2.5 feet tall by 1.5 feet wide, with wrinkled, soft hairy leaves.


Displaying 1 - 20 of 34 listings   1 | 2View AllNext > Sort By: Sort