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Achillea tomentosa
  • Common name: Woolly Yarrow
  • Zone: 3
  • Exposure: Sun / part shade
  • Height x Width: 6-12 in. x 28 in.
  • Native to: Eurasia

Woolly Yarrow is a vigorous, low growing, evergreen ground cover forming tight clumps of charming, fuzzy grey-green leaves.Clusters of cheerful yellow blossoms pop up in late spring. Attracts bees and butterflies.

Alyssum montanum
  • Common name: Mountain Alyssum
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 4 in. x 15 in.
  • Native to: Mediterranean

Mountain Alyssum has bright yellow flowers over attractive, spreading gray-green mat of small oval leaves. Nice for rock gardens, front of borders. Pollinators: bees and butterflies.

Antennaria microphylla
  • Common name: Littleleaf Pussytoes
  • Zone: 2
  • Exposure: Sun / part shade
  • Height x Width: 2" and spreading
  • Native to: Idaho

Littleleaf or Rosy Pussytoes is a very low growing, tight groundcoverwith pinkish “pussytoe” blossoms in late spring. Spreads nicely around garden rocks and thrives in dry sunny areas with poor, well-drained soil. Retains grey-green leaves all winter.

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Arctostaphylos uva-ursi
  • Common name: Kinnick-kinnick
  • Zone: 3
  • Exposure: Sun / part shade
  • Height x Width: 4" and sprawling
  • Native to: Idaho

Kinnick-kinnick is a glossy deep-green groundcover that does well under trees and shrubs in full sun or part shade. Small pinkish blooms are followed in fall by bird-friendly red berries. Leaves green or deep red in winter.

Arenaria alfacarensis
  • Common name: Spanish Sandwort
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 1/2" x 6"
  • Native to: Spain

Amazingly tight, hard mats of silver-green triangular foliage are sprinkled with tiny white flowers in late spring. A fine and rarely available alpine from Spain. Exquisite rock garden plant, evergreen.

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Arenaria hookeri ssp. desertorum
  • Common name: Hooker’s Desert Sandwort
  • Zone: 4
  • Exposure: Sun/Part shade
  • Height x Width: 1/2" x 3"
  • Native to: WY, UT, CO

Exceptionally tight green cushions with micro-fine needle-like foliage. The buns are covered with dense, flat-topped sprays of white flowers in early summer. Terrific rock garden plant, evergreen.

Arenaria kingii
  • Common name: King's Sandwort
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 8 in. x 10 in.
  • Native to: Idaho

King’s Sandwort:  The long grass-like leaves of this native sandwort are evergreen. In early spring they are decorated by an open spray of delicate white flowers. Tidy. Ideal for a rock garden or edging a pathway. Not currently available.

Arenaria montana
  • Common name: Mountain Sandwort
  • Zone: 2
  • Exposure: Sun
  • Height x Width: 4 in. tall and spreading
  • Native to: Europe

Mountain Sandwort is a classy little alpine or rock garden plant. It forms a low evergreen cushion of dark green leaves, bearing loads of large white flowers during the spring and early summer.  Great for edging paths, between flagstones, in walls or rock gardens. Evergreen.

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Armeria maritima
  • Common name: Thrift
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 6 in. x 8 in.
  • Native to: Pacific Northwest US

Thrift has pink globe flowers over mounds of grassy leaves. Deadhead for prolonged bloom. Evergreen foliage.

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Artemisia pedemontana
  • Common name: Dwarf Wormwood
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 3" x 12"
  • Native to: Europe

This low, compact sagebrush relative makes a perfect rock garden plant. Fluffy flowers arise in early summer, can be cut back to reveal the evergreen mat. Choice!

Delosperma ‘Salmon’
  • Common name: Salmon Iceplant
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 2" and spreading
  • Native to: South Africa

Low carpet of semi-evergreen foliage topped with shocking salmon-colored flowers in late spring. Wonderful addition to any rock garden.

Delosperma nubigenum
  • Common name: Hardy Iceplant
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 1 in. x 24 in.
  • Native to: South Africa

Hardy Iceplant is a fast-growing, mat-forming succulent, lovely garden accent. Bright yellow daisy-like flowers appear in late- spring. fall. Bright-green knobby leaves turn bright red during the winter. Avoid overwatering and excessive winter moisture.

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Dianthus deltoides ‘Flashing Lights’
  • Common name: 'Flashing Lights' Dianthus (Pink)
  • Zone: 3
  • Exposure: Sun/part shade
  • Height x Width: 6 in. x 10 in.
  • Native to: Eurasia

‘Flashing Lights’ Dianthus (Pink): This evergreen dianthus is not pink, but a deep, brilliant red. The mound of narrow, dark green, grassy leaves is attractive year-round. Great for low edging at the front edge of a bed or in a rock garden. Attracts butterflies.

 

Dianthus gratianopolitanus ‘Firewitch’
  • Common name: 'Firewitch' Dianthus (Pink)
  • Zone: 3
  • Exposure: Sun / Part shade
  • Height x Width: 8 in. x 18 in.
  • Native to: Eurasia

‘Firewitch’ Dianthus (Pink) is a bouquet of electric magenta flowers with frilly edges over a mound of attractive gray-green foliage. Excellent rock garden plant, or use at the front of a border. Attracts butterflies.

 

Ephedra minima
  • Common name: Dwarf Mormon Tea
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 4 in. x 12 in.
  • Native to: Asia

This is the prostrate form of the native Mormon Tea shrub. Thin stems intertwine on the ground to gradually form a thick, sprawling, evergreen groundcover. In mid-summer dozens of bright red berry-like flowers appear, nestled down in the foliage. From Tibet, rare.

Erigeron compositus
  • Common name: Cutleaf Daisy
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 6 in. x 12 in.
  • Native to: Idaho

Cutleaf Daisy is a vigorous native fleabane with dissected leaves and bushels of white flowers. Excellent for rock gardens or exposed slopes with good drainage.

Erigeron linearis
  • Common name: Desert Yellow Fleabane
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 6 in. x 6 in.
  • Native to: Idaho

Desert Yellow Fleabane is a small native daisy with cheerful yellow flowers in summer. Grows in poor soil with little care.

Eriogonum caespitosum
  • Common name: Mat Buckwheat
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 3" x 12"
  • Native to: Idaho

A beautiful mat-forming buckwheat topped with delicate round flowers–pale yellow, fading to pink or orange. Excellent rock garden plants. Choice!

Eriogonum ovalifolium var. purpureum
  • Common name: Cushion Buckwheat
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 10" x 10"
  • Native to: Idaho

This Buckwheat forms dense mounds of grey-green leaves topped by pinky-white pom-poms in late spring. Great for rock gardens or for any small space in the landscape. Choice!

Eriogonum sp.
  • Common name: Dwarf Sulfur Buckwheat
  • Zone: 4-5 (?)
  • Exposure: Sun
  • Height x Width: 3" x 10"
  • Native to: Western U.S.

This beautiful little plant appears to be a variety of Sulfur Buckwheat. Its sculpted leaves and diminutive shrubby form make it an outstanding rock garden plant. Blooms earlier than our regular Sulfur Buckwheat.

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. 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 Coralbells is another charming native coralbells, this one with deep red to pink flowers on delicate wands.Great for full sun or dry shade. Evergreen foliage. Not currently available.

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Minuartia laricifolia
  • Common name: Larch-leaf Sandwort
  • Zone: 4
  • Exposure: Sun/Part shade
  • Height x Width: 6" x 12"
  • Native to: Europe

Sandwort-like white flowers over club-moss like foliage. Here is a low-growing woody perennial with small needle-like leaves and white flowers, It typically grows in rock crevices or on rocky soils, likes good drainage. Would benefit from afternoon shade.

Origanum libanoticum
  • Common name: Hopflower Oregano
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 4 in. and spreading
  • Native to: Mediterreanean

Hopflower Oregano is an outstanding cascading ground cover. This ornamental oregano produces hundreds of small lantern-like flowers on wiry stems. Terrific for edging, cascading over walls or filling in between larger plants. Not currently available.

 

Penstemon davidsonii v.davidsonii
  • Common name: Davidson’s Penstemon
  • Zone: 3?
  • Exposure: Sun / Part shade
  • Height x Width: 3 in. x 12 in.
  • Native to: Western US

Davidson’s Penstemon is a choice landscape plant with a low, sprawling woody structure that allows it to function like a ground cover. If given some sun protection in winter it will be completely evergreen. Lavender tubular flowers show up in late spring. Likes well-drained soils.

 

Penstemon davidsonii var. menziesii
  • Common name: Menzies’ Penstemon
  • Zone: 4
  • Exposure: Sun/Part shade
  • Height x Width: 2" x 12"
  • Native to: Oregon, Washington & British Columbia

Small shiny leaves on prostrate stems with small pink-purple blooms in late spring. This ground-hugging Penstemon crawls around rocks and underneath larger plants. Excellent Rock Garden plant. Choice.

Penstemon fruticosus, dwarf form
  • Common name: Dwarf Shrubby Penstmon
  • Zone: 4
  • Exposure: Sun / Part shade
  • Height x Width: 6-8 in. x 8-10 in.
  • Native to: (Cultivar of native plant)

Dwarf Shrubby Penstemon is a compact version of the native Shrubby Penstemon and quite similar to Davidson’s Penstemon. Gorgeous lavender flowers in late spring. Evergreen mounds are beautiful in winter. Charming!

Penstemon pinifolius
  • Common name: Pineleaf Penstemon
  • Zone: 4
  • Exposure: Sun / Part shade
  • Height x Width: 15 in. x 18 in.
  • Native to: Southwest US

Pineleaf Penstemon has loads of red-orange tubular blooms over expanding clumps of attractive narrow leaves. Stems become woody with age. Evergreen foliage.

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Penstemon virens
  • Common name: Blue Mist Penstemon, Front Range Penstemon
  • Zone: 4
  • Exposure: Sun / part shade
  • Height x Width: 8 in. x 8 in.
  • Native to: Mountain West

Blue Mist Penstemon or Front Range Penstemon is a dwarf penstemon,  native to the plains and foothills of the Eastern Rockies, often growing in large colonies. In late spring, dainty spikes of lavender-blue flowers rise over evergreen rosettes Likes dry, well- drained soil and is well adapted to garden conditions.

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Petrophytum caespitosum
  • Common name: Rock spirea
  • Zone: 3
  • Exposure: Sun or Part Shade
  • Height x Width: 2" and spreading
  • Native to: Idaho

Charming slow-growing rock garden plant, it is capable of forming large mats in the wild. Outstanding! Rare!  More information here.

Pterocephalus depressus
  • Common name: Carpeeting Pincushion Flower
  • Zone: 5
  • Exposure: Sun or Part Shade
  • Height x Width: 2" and spreading
  • Native to: Morocco

Unusual little rock garden plant forming dense mounds of sculpted foliage topped with pink flowers in summer. Prefers well drained soil. Choice!

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Saponaria ocymoides
  • Common name: Rock Soapwort
  • Zone: 3
  • Exposure: Sun
  • Height x Width: 4-6” and spreading
  • Native to: Europe

Rock Soapwort is a vigorous, low creeping plant, useful for spilling down sunny slopes or over rock walls. Plants form a low mound of bright-green leaves, literally smothered by starry bright-pink flowers in late spring or early summer. Also useful as an edging in the sunny border, and worth considering in tubs or pots. Prune plants back hard immediately after blooming, to maintain a compact habit.

Sedum grisebachii
  • Common name: Grisebach's Sedum
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 2" and spreading
  • Native to: Mediterranean

This unusual sedum, with tiny leaves packed on short stems, has a bristly appearance and contrast nicely with other sedums. Great for rock gardens, edging, pathways. Evergreen.

Sedum hispanicum
  • Common name: Spanish Sedum
  • Zone: 5
  • Exposure: Sun / part shade
  • Height x Width: 2 in. and spreading
  • Native to: Mediterranean

Spanish Sedum is a charming sedum forms tight buns of blue-green foliage which turns beautiful shades of purple in cold weather. Terrific rock garden plant, or useful anywhere as a gradually spreading ground cover.

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Sedum middendorffianum
  • Common name: Chinese Mountain Stonecrop
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 4 in. and spreading
  • Native to: Asia

Chinese Mountain Stonecrop is an attractive and unique stonecrop and features handsome, evergreen foliage topped by two-tone yellow and orange flowers. Exceptional!

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Sedum rupestre
  • Common name: Rocky Stonecrop
  • Zone: 5
  • Exposure: Sun / part shade
  • Height x Width: 2 in. and spreading
  • Native to: Europe

Rocky Stonecrop is an odd and charming sedum, resembling undersea creatures.Great for rock gardens, or simply filling in between larger plants in a landscape.

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Sedum sp.
  • Common name: Green Mound Sedum
  • Zone: 5
  • Exposure: Sun or Part Shade
  • Height x Width: 8" x 8"
  • Native to: Mediterranean

This compact mounding sedum is very useful in the landscape for small border areas and evergreen structure. Grown for foliage rather than flowers.

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Sempervirens spp
  • Common name: Hens and Chicks
  • Zone: 5
  • Exposure: Sun/Part shade
  • Height x Width: 1” - 3” and spreading
  • Native to: Mediterranean

There is a whole array of different little gems in the genus Sempervirens, meaning “Forever Living” or “Evergreen”. These Hens and Chicks come in different colors and range from tiny to fist-sized. They are wonderful fillers in rock gardens, perched in rock walls and edging pathways.

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Sisyrinchium montanum
  • Common name: Blue-eyed Grass
  • Zone: 3
  • Exposure: Sun/Part shade
  • Height x Width: 6" x 10"
  • Native to: Idaho

This cheerful little native wildflower produces dainty blue/purple flowers on grassy foliage. It prefers rich, moist soil in spring but tolerates summer dryness. Will gradually spread, creating a little ‘meadow’.

Thymus praecox arcticus cv. “Elfin”
  • Common name: Elfin Thyme
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 1 in. x 6 in.
  • Native to: Mediterranean

Elfin Thyme is a slowly spreading dwarf thyme, perfect for the rock garden. Small leaves tightly blanket the ground. Pink flowers in spring.

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