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Eryngium planum
  • Common name: Sea Holly
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 2' x 2'
  • Native to: Europe

Steel blue thistle-like flowers on branched stems. Beautiful garden accent and cut flower. Thrives in poor soils.

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Eryngium yuccifolium
  • Common name: Rattlesnake Master
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 2-5 ft. hight
  • Native to: Midwestern Prairies (US)

Rattlesnake Master is a tall, striking accent plant with stiff, yucca-like foliage and 1” white thistle-like flowers. Name derives from traditional belief that root will cure snake bite. Native to midwestern prairies. Pollinators: bees, beetles and flies. More information here.

Erysimum pulchellum
  • Common name: Beautiful Wallflower
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 6" x 10"
  • Native to: Eurasia

Beautiful Wallflower lives up to its name! Tight mounds of evergreen foliage covered with small yellow flowers in mid-spring. Excellent rock garden or edging plant. Choice!

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Gaillardia aristata
  • Common name: Blanketflower
  • Zone: 3
  • Exposure: Sun
  • Height x Width: 1-2 ft. x 1-2 ft.
  • Native to: Idaho

Cheerful red flowers with yellow tips. Adaptable and reliable, this native wildflower blooms for most or all of the summer. Give haircut to in mid-summer to promote more flowering. Will seed out without being invasive. Tolerates a wide variety of soil types. Pollinators: native bees, honey bees.  Firewise. More information here.

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Gaura lindheimeri
  • Common name: Gaura
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 4 ft. x 4 ft.
  • Native to: Texas

Gaura has long graceful spikes of pinkish or white blooms float on the breeze from mid-summer to fall. Long-blooming, dramatic, easy.

Genista lydia
  • Common name: Lydia Broom
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 1-2' x 3-4'
  • Native to: Turkey, Balkans

Lydia broom, a well-behaved flowering shrub, is a stunning sight in late spring,–covered with bright yellow pea-like flowers. Otherwise, the evergreen mound of wiry stems provide good structure year round. Tolerates clay. Don’t confuse with invasive Scotch Broom. Choice!

Geranium viscosissimum
  • Common name: Sticky Purple Geranium
  • Zone: 2
  • Exposure: Sun / Part shade
  • Height x Width: 12-30 in. x 10-18 in.
  • Native to: Idaho

Sticky Purple Geranium makes a lovely addition to informal meadow-like landscapes. Native to higher elevations in Idaho and across the mountain west, it thrives in moist to dry settings. Blooming in mid-spring, it attracts a variety of native pollinators and honeybees. Firewise.

 

Geum triflorum
  • Common name: Prairie Smoke
  • Zone: 2
  • Exposure: Sun / Part shade
  • Height x Width: 12 in. x 12 in.
  • Native to: Idaho

Prairie Smoke has early summer blooms, followed by distinctive feathery pink seed heads.  Appreciates moderate water and does best in part shade, except at higher elevations, where it thrives in full sun. Pollinators: native bees. Firewise. More info here.

Glaucineum corniculatum
  • Common name: Horned Poppy
  • Zone: 5-6
  • Exposure: Sun
  • Height x Width: 2' x 2'
  • Native to: Eurasia

Striking, wavy blue-green leaves with stunning orange poppies. Leaves remain beautiful year-round. Deadhead to control re-seeding.

Gypsophilia repens rosea
  • Common name: Creeping Baby's Breath
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 6 in. x 18 in.
  • Native to: Europe

Creeping Baby’s Breath is a delicate spreading ground cover, creeping around other plantings and falling down walls. Covered with a burst of pink or white blooms, late spring. Easy and rewarding.

Hedysarum borealis
  • Common name: Northern Sweetvetch
  • Zone: 3
  • Exposure: Sun/part shade
  • Height x Width: 8" x 24"
  • Native to: Idaho, Utah

Utah Sweetvetch is a low, sprawling plant with beautiful pea-like blossoms. Winds in and around larger plants. Supports native pollinators and fixes Nitrogen in the soil.

Helianthus maximiliani
  • Common name: Maximilian’s Sunflower
  • Zone: 4
  • Exposure: Sun
  • Height x Width: to 6 ft. high
  • Native to: Southwest US

Maximilian’s Sunflower is a vigorous perennial sunflower that comes back from roots every spring and grows to 5 or 6 feet. In late summer a profusion of smallish sunflowers, cover the upright stalks. Excellent fall interest, great along fences. Late season nectar source for bees and butterflies.

Heliomeris multiflora
  • Common name: Showy Goldeneye
  • Zone: 2
  • Exposure: Sun or Part Shade
  • Height x Width: 12" x 12"
  • Native to: Idaho

Cheery daisy-like flowers continue blooming all summer, especially beautiful in informal native or prairie gardens. Can seed out but is easily controlled. Tolerates some shade. More info here.

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Hesperaloe parviflora
  • Common name: Texas Red Yucca
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 4' x 3'
  • Native to: Texas

Tall spikes of tubular red flowers in summer attract hummingbirds. The basal leaves are long and narrow, but not sharp as in a true Yucca. Needs well-drained soil.

Heterotheca villosa
  • Common name: Hairy Goldenaster
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 6-10" x 12" - 24"
  • Native to: Idaho

Hairy Goldenaster  covers itself completely with small yellow aster-like flowers in early summer. Needs no water once established.

Heuchera cylindrica
  • Common name: Coralbells
  • Zone: 3
  • Exposure: Sun / Part shade
  • Height x Width: 18 in. x 12 in.
  • Native to: Idaho

Coralbells has dramatic spikes of cream to white flowers rise from a base of scalloped deep green leaves. Favors rock outcroppings; great in full sun or dry shade. Very long blooming in our Boise garden. Firewise. Choice!

Heuchera rubescens
  • Common name: Alpine Coralbells
  • Zone: 4
  • Exposure: Sun / Part shade
  • Height x Width: 12-18 in. x 12 in.
  • Native to: Idaho

Alpine or Red Coralbells is another charming native Heuchera, this one with deep red to pink flowers on delicate wands. Great for full sun or dry shade. Sculpted evergreen foliage. Firewise.

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Hymenoxys acaulis
  • Common name: Sundancer Daisy
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 15 in. x 15 in.
  • Native to: Idaho

Sundancer Daisy is a cheerful, showy, long-blooming western wildflower and is a gem in the xeric garden. The attractive thread- leaf foliage is covered by bright-yellow, long-stemmed daisies in summer. Remarkably adapted to arid regions, from low desert to mountains.

 

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Hymenoxys hoopesii
  • Common name: Orange Mountain Daisy
  • Zone: 4
  • Exposure: Sun/Part shade
  • Height x Width: 2’ x 2’
  • Native to: Idaho

Large yellow daisies pop out on this mountain meadow plant in early summer.

Iberis saxatilis
  • Common name: Perennial Candytuft
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 4” x 12-18"
  • Native to: Mediterranean

Very low growing, evergreen cushion with dark green leaves and large, white flowers in spring that can fade to lilac. Sun, very well-drained soil.

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Iliamna rivularis
  • Common name: Mountain Hollyhock
  • Zone: 4
  • Exposure: Sun / Part shade
  • Height x Width: 40 in. x 32 in.
  • Native to: Idaho

Mountain Hollyhock is a low-growing mountain native, with attractive foliage and  gorgeous hollyhock-like pink satin cups. More information here.

Ipomopsis rubra
  • Common name: Standing Cypress
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 3-4' x 2'
  • Native to: Texas and Eastern US

This fantastic biennial, native to Texas, produces a profusion of tubular red flowers in the second summer. Closely related to our native Scarlet Gilia, it is proving to be more reliable in cultivation. And, being from Texas, it is naturally bigger, bolder and showier. A real magnet for Hummingbirds

Iris pallida
  • Common name: Variegated Iris
  • Zone: 5
  • Exposure: Sun/part shade
  • Height x Width: 18-24" x 18-24"
  • Native to: Europe

Grown for its striking foliage, this Iris also produces a lovely lavender flower in late spring.

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Kniphofia uvaria
  • Common name: Red Hot Poker
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 3' x 1'
  • Native to: South Africa

A striking accent in the xeric garden, Red Hot Poker is well named for it vivid orange and red bottle brush flowers. Lily-like leaves at the bottom are evergreen.

Lamium maculatum
  • Common name: Spotted Deadnettle
  • Zone: 2
  • Exposure: Shade/part shade
  • Height x Width: 3" & spreading
  • Native to: Eurasia

A groundcover that loves shade! Its variegated leaves light up a dark shady area, yet the plant will also grow in sun. Not picky about soil type or moisture.

Lavandula angustifolia ‘Lady’
  • Common name: Lady Lavender
  • Zone: 5
  • Exposure: Sun or Part Shade
  • Height x Width: 12" x 12"
  • Native to: Mediterranean

This is a very compact lavender, great for edging or the front of a border.

Lavandula angustifolia ‘Munstead’
  • Common name: Munstead Lavender
  • Zone: 5
  • Exposure: Sun or Part Shade
  • Height x Width: 18" x 18"
  • Native to: Mediterranean

This is a classic mid-sized Lavender. Spikes of fragrant lavender flowers in early summer.

Lavandula x intermedia ‘Grosso’
  • Common name: Lavender “Grosso”
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 3 ft. x 3 ft.
  • Native to: Mediterranean

Lavender “Grosso” is a vigorous, large lavender with long, deep purple flower spikes in early to mid-summer. Extremely drought- tolerant, good foundation planting.Flower spikes may be cut back for repeat bloom. Evergreen foliage. Pollinators: bees.

 

Liatris aspera
  • Common name: Tall, Button or Rough Blazing Star
  • Zone: 3
  • Exposure: Sun or Part Shade
  • Height x Width: 2-3’ x 1’
  • Native to: Central, Eastern U.S.

Tall spikes of pink flowers late summer. Nice cut flower. Nectar for butterflies.

Liatris ligulistylis
  • Common name: Rocky Mountain Blazing Star
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 2-3’ x 1’
  • Native to: Montana to New Mexico

Rocky Mountain Blazing Star produces tall upright stalks of lavender/purple flowers that are premium butterfly attractors. This prairie native is a robust grower and does best in fertile soils with infrequent but deep soakings. Nectar plant for Monarch and other butterflies. Excellent cut flower.

Liatris mucronata
  • Common name: Bottle Brush Blazing Star
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 24” x 18”
  • Native to: South Central US

Dense spikes of lavender-pink flowers on tall, thick stems. Great pollinator plant. Prefers dry, sandy soil.

Liatris punctata
  • Common name: Dotted Gayfeather
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 12-18 in. x 8-12 in.
  • Native to: Short Grass Prairie, Central US

A showy plant for dry gardens or shortgrass meadows, Dotted Gayfeather produces lavender bottlebrushes that bloom from the top down. Deep tuberous taproots account for extreme drought tolerance and long life. Nectar plant for butterflies.

 

Liatris spicata
  • Common name: Dense Blazing Star
  • Zone: 3
  • Exposure: Sun
  • Height x Width: 16 in. x 12-24 in.
  • Native to: Great Plains (US)

Dense Blazing Star: With showy spikes of pink flowers over grass-like foliage, this native prairie plant will add stunning variety, texture & beauty to your border or meadow. Excellent cut flower. Nectar plant for butterflies.

 

Linum lewisii
  • Common name: Lewis Flax
  • Zone: 3
  • Exposure: Sun
  • Height x Width: 1 ft. x 2 ft.
  • Native to: Idaho

Lewis Flax, a vigorous native that produces masses of cheerful little blue flowers from late spring through mid-summer. Each flower lasts only a day, drops to the ground and is replaced by more the next morning. Charming. Pollinators: bees.

Machaeranthera canescens
  • Common name: Hoary Aster
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 18-24 in. x 18 in.
  • Native to: Idaho

Hoary Aster: The big purple daisies of this fall-blooming biennial light up the Boise foothills in fall. In the garden, the plants will flower vigorously, then self-sow and reappear the following year. Pollinators: bees, butterflies.

Melampodium leucanthum
  • Common name: Blackfoot Daisy
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 12” x 18”
  • Native to: SW US

Blackfoot Daisy is a cheerful, informal SW native daisy that, with a little extra water, blooms all summer long. More information here.

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Mirabilis multiflora
  • Common name: Colorado Four o'Clock
  • Zone: 4
  • Exposure: Sun/Part shade
  • Height x Width: 3-4 ft. x 3-4 ft.
  • Native to: Southwest US

Colorado Four O’Clock is one of those plants that vanishes completely in the winter, retreating underground  to an enormous root. Then, fairly late in the spring, shoots begin to emerge and once the plant starts growing—there’s just no stopping it! It can sprawl far and wide and looks lovely draped over a wall. Long-lived!  More info here.

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Monarda fistulosa
  • Common name: Beebalm, Wild Bergamot
  • Zone: 3
  • Exposure: Sun / Part shade
  • Height x Width: 36-60 in. x 24-36 in.
  • Native to: Idaho

Beebalm or Wild Bergamot is a widespread native wildflower with clusters of tufted lavender flowers and is an important plant for native bees and butterflies. A long-lived, clump-forming perennial, it is attractive at the back of a border or in a meadow-like setting.

Monardella macrantha
  • Common name: Red Monardella
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 3" and sprawling
  • Native to: CA

Clusters of brilliant red tubular flowers over mats of shiny, green leaves. Great for rock gardens or containers. Likes well-drained soil.

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Monardella odoratissima
  • Common name: Mountain Beebalm, Little Beebalm, Coyote Mint
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 12 in. x 12 in.
  • Native to: Idaho

Mountain Beebalm or Little Beebalm or Coyote Mint has violet flowers in dense heads in mid-summer over compact clumps of deliciously pungent minty leaves. Great butterfly plant.