Remember to use the search form (on your right) if you cannot find what you need!

Nepeta x faassenii
  • Common name: Select Blue Catmint
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 15 in. x 18 in.
  • Native to: Mediterranean

Select Blue Catmint This is a sterile hybrid catmint forming a neat mound of grey-green leaves and loads of soft blue flowers.Trim it back after bloom for a second flush of flowers in late summer. Attracts bees and other beneficial insects. Catmint is related to but not same as Catnip. Firewise.

Water needs:
Oenothera caespitosa
  • Common name: Fragrant Evening Primrose
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 6 in. x 12 in.
  • Native to: Idaho

Fragrant Evening Primrose: Silken white blossoms unfurl each evening over shiny deep green mounds of leaves, slipping to a rosy tint with midday heat. The fragrance is sweet and exotic, contrasting sharply with the native surroundings of dry foothills, shrub steppe and pinyon-juniper. Tolerant of poor well-drained soils, and clay. Firewise. More information here.

 

Oenothera macrocarpa
  • Common name: Missouri Evening Primrose
  • Zone: 4
  • Exposure: Sun / Part shade
  • Height x Width: 10 in. x 2-3'
  • Native to: West-central US

Missouri Evening Primrose grows into mounds of glossy leaves followed by clear yellow blossoms over much of the summer. Plants sprawl widely then die back to the ground in winter. Firewise.

 

Water needs: • Bloom period:  
Oenothera macrocarpa ssp. fremontii
  • Common name: Fremont's Evening Primrose
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 12 in. x 24 in.
  • Native to: Central US

Fremont’s Evening Primrose produces a dazzling display of lemon-yellow flowers in mid-summer. Blooms are tucked in and around the narrow gray- green foliage. Deeply tap-rooted and long-lived. Needs good drainage. Firewise.

 

Oenothera pallida
  • Common name: Pale Evening Primrose
  • Zone: 3-4
  • Exposure: Sun
  • Height x Width: 12" x 12"
  • Native to: Idaho

This Boise Foothills native produces scads of lovely white flowers and, given a little extra water, can bloom all summer. The plants spread by root and could be invasive in the wrong situation. Needs no water once established. Firewise.

Oenothera speciosa
  • Common name: Showy Evening Primrose
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 1 ft. and spreading
  • Native to: Southwest US

Showy Evening Primrose is a heat-loving beauty, thriving in sunny, dry areas. It can spread rapidly on shallow roots  and can overrun smaller, less vigorous plants. Preferring unimproved, well-drained soils, this plant requires little extra water once established. Firewise. More information here.

 

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 mounding or draping plant, producing hundreds of small lantern-like flowers on wiry stems. Terrific for edging, cascading over walls or filling in between larger plants.

 

Penstemon aridus
  • Common name: Stiffleaf Penstemon
  • Zone: 4?
  • Exposure: Sun
  • Height x Width: 4” x 12”
  • Native to: Idaho

Unusual and rare Penstemon with outstanding landscape value. Low tufts of narrow, dark green leaves persist through the winter then erupt in purple flowers in early spring. Firewise. Choice!

Water needs: • Bloom period:  
Penstemon barbatus
  • Common name: Beardlip Penstemon
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 3' x 2'
  • Native to: SW US

Loose spikes of brilliant scarlet tubular flowers with distinctive ‘bearded’ lip. Tough and long-lived. Great hummingbird attractor. Firewise.

Penstemon barrettiae
  • Common name: Barrett's Penstemon
  • Zone: 5
  • Exposure: Sun or Part Shade
  • Height x Width: 12" x 18"
  • Native to: Eastern Oregon

Waxy blue green leaves and large lavender tubular flowers. Semi-woody structure. Prefers part shade. Firewise.

Water needs:
Penstemon cardinalis
  • Common name: Cardinal Penstemon
  • Zone:
  • Exposure: Sun
  • Height x Width: 2' x 2'
  • Native to: SW US

Tall flower spikes loaded with ruby red flowers.  Eye-catcher. Native to hot, dry sites with well-drained soil. Great for hummingbirds, other pollinators. Firewise.

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. Firewise.

 

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 digitalis
  • Common name: Foxglove Penstemon
  • Zone: 3
  • Exposure: Sun/Part shade
  • Height x Width: 3’ x 2
  • Native to: Central/Eastern US

A substantial penstemon with spikes of white to pale pink flowers in June. Unlike most penstemons, it prefers slightly moist, well-drained soil in full sun or part shade. Firewise.

Penstemon eatonii
  • Common name: Firecracker Penstemon
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 40 in. x 24 in.
  • Native to: Southwest US

Firecracker Penstemon bears tubular, bright scarlet flowers over dark green basal leaves. Prefers poor to moderately fertile, well drained soil and full sun. Great for dry desert-scapes. Pollinators: hummingbirds and bees. Firewise.

 

Penstemon fruticosus
  • Common name: Shrubby Penstemon
  • Zone: 4
  • Exposure: Sun / Part shade
  • Height x Width: 12-16 in. x 8-12 in.
  • Native to: Idaho

Shrubby Penstemon is an unusual woody, upright, evergreen penstemon with abundant lavender tubular flowers in early summer. Foliage turns soft yellow in autumn with purple-green flower spikelets. Leaves may burn in winter–shade helps. Firewise.

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! Firewise.

Penstemon grandiflorus
  • Common name: Large Flower Penstemon
  • Zone: 3
  • Exposure: Sun
  • Height x Width: 2-3' x 1'
  • Native to: Midwest

One of the showiest of all North American native Penstemons, Penstemon grandiflorus can reach heights of three feet with stunning pink to purple flowers. The plant’s beautiful vertical structure and succulent gray-green foliage, make it a very unique Penstemon. Firewise.  More information here.

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. Firewise.

Water needs: • Bloom period:  
Penstemon platyphyllus
  • Common name: Broadleaf Penstemon
  • Zone: 4-5 (?)
  • Exposure: Sun
  • Height x Width: 12-18 in. x 12-18 in.
  • Native to: Nevada

Showy spikes of purple-blue flowers in mid-spring. Flowers are huge and attractive to bees. Firewise.

Water needs: • Bloom period:  
Penstemon procerus
  • Common name: Littleflower Penstemon
  • Zone: 3
  • Exposure: Sun or Part Shade
  • Height x Width: 12' x 12'
  • Native to: Idaho

This early blooming penstemon sends up multiple stalks, each with numerous whorls of small tubular flowers. Widespread native. Firewise.

Water needs: • Bloom period:  
Penstemon richardsonii
  • Common name: Richardson's Penstemon
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 30 in. x 30 in.
  • Native to: Eastern Oregon and Washington

Richardson’s is a wonderful and easy Penstemon for filling in spaces in the garden or tumbling down banks on trailing stems. Unlike most penstemons, this one starts blooming late, producing a charming profusion of rosy purple flowers that lasts from early summer nearly until frost. It re-seeds readily and multiplies in the garden. Firewise.

Penstemon strictus
  • Common name: Rocky Mountain Penstemon
  • Zone: 4
  • Exposure: Sun / part shade
  • Height x Width: 24 in. x 24 in.
  • Native to: Mountain West

Rocky Mountain Penstemon has violet-blue flower spikes over leathery foliage. Attracts hummingbirds. Long-lived, reliable bloomer. Forms low evergreen clumps, easy and reliable; deadhead for re-bloom. Pollinators: bees. Firewise.

Penstemon venustus
  • Common name: Lovely Penstemon
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 3 ft. x 3 ft.
  • Native to: Idaho

Lovely Penstemon is a vigorous evergreen native penstemon with large, gorgeous tubular lavender flowers in late spring. Cut back seed heads to encourage re-bloom. Pollinators: bees. Firewise.

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. Firewise.

Water needs: • Bloom period:  
Petrophytum caespitosum
  • Common name: Mat Rockspirea
  • 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: Carpeting Pincushion Flower
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 2" and spreading
  • Native to: Morrocco

Charming, low-growing rock garden plant or small-scale groundcover. Finely cut evergreen foliage creeps across the ground, sprouting pincushion-like mauve flowers in late spring. Attractive seedhead tufts follow.

Pterocephalus perennis
  • Common name: Pincushion Flower
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 4” x 12"
  • Native to: Mediterranean

Neat mounds of evergreen foliage topped with attractive pincushion-like flowers. Rock gardens, edging.

Ptilotrichum spinosum
  • Common name: Spiny Madwort
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 1' x 1-4'
  • Native to: Mediterranean

Intricately branched wiry shrublet forming somewhat prickly mound-like cushions. Completely covered with soft pink flowers in late spring.

Ratibida columnifera
  • Common name: Prairie Coneflower. Mexican Hat
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 15” x 18”
  • Native to: Widespread in U. S.

This cheerful wildflower has two forms, one yellow and one red. They both will  bloom over a long period in hot, dry summers, attracting bees and butterflies. Great in meadows and other casual landscapes. Will seed around.

Water needs: • Bloom period:  
Salvia azurea/pitcheri
  • Common name: Azure Blue Sage
  • Zone: 4
  • Exposure: Sun / part shade
  • Height x Width: 3-4 ft. x 3 ft.
  • Native to: West-central US

Azure Blue Sage is a tall, late-blooming Salvia. Brilliant blue tubular flowers on slender, arching stems provide dramatic late- season color in the garden. Disappears in winter and comes booming back from the roots in spring. Great late-season food source for bumble bees, honey bees, butterflies and hummingbirds! Tolerates clay. Firewise.

Water needs: • Bloom period:  
Salvia darcyi
  • Common name: Darcy Sage
  • Zone: 5
  • Exposure: Sun/part shade
  • Height x Width: 3' x 3'
  • Native to: Mexico

A stunningly beautiful Salvia from high in the mountains of N. Mexico. Attracts hummingbirds, bees. Firewise.

Salvia nemorosa Blue Queen
  • Common name: Blue Queen Salvia
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 2-3' x 2-3'
  • Native to: Eurasia

Blue Queen Salvia has spikes of violet-blue flowers in summer; tolerates intense heat and drought. Cut back after bloom for quick re-bloom. Magnet for honeybees and butterflies! Tolerates clay. Firewise.

Water needs: • Bloom period:  
Salvia officinalis-Berggarten
  • Common name: Berggarten Sage
  • Zone: 5
  • Exposure: Sun / part shade
  • Height x Width: 18 in. x 36 in.
  • Native to: Mediterranean

Berggarten Sage is a beautiful and distinctive cultivar or ordinary garden sage with huge leaves and few flowers. Excellent evergreen foliage and culinary plant. Tolerates clay. Firewise.

Water needs:
Salvia officinalis-Dwarf
  • Common name: Dwarf Culinary Sage
  • Zone: 5
  • Exposure: Sun or part shade
  • Height x Width: 1-2' x 4-6'
  • Native to: Mediterranean

Dwarf Culinary Sage grows into a shrub covered with a dense mound of edible leaves. Covered with showy lavender-blue flowers in early summer, it becomes a magnet for honeybees. Unlike ordinary culinary sage, this dwarf form is completely evergreen, creating a beautiful gray-green mound in the winter garden. Tolerates clay and shade. Firewise.

Water needs: • Bloom period:  
Salvia officinalis-Variegated
  • Common name: Golden Garden Sage
  • Zone: 5
  • Exposure: Sun / part shade
  • Height x Width: 2 ft. x 2 ft.
  • Native to: Mediterranean

Golden Garden Sage is a variegated variety of culinary sage. Attractive mounds of yellow-green leaves, highly variegated. Use in cooking like garden sage. Evergreen. Firewise.

 

Water needs: • Bloom period:  
Salvia pachyphylla
  • Common name: Giant Flowered Purple Sage
  • Zone: 5
  • Exposure: Sun
  • Height x Width: 3 ft. x 3 ft.
  • Native to: Western US

Giant Flowered Purple Sage is a tough, heat-tolerant summer-bloomer with spectacular clumps of deep purple flowers.Attractive gray-green foliage remains in winter. Needs well-drained soil. Attractive to bees, butterflies and hummingbirds. Tolerates clay.

Water needs: • Bloom period:  
Saponaria ocymoides
  • Common name: Rock Soapwort
  • Zone: 3
  • Exposure: Sun
  • Height x Width: 8" x 12-18"
  • Native to: Europe

Rock Soapwort is a vigorous, mounding plant, covered with small pink flowers in the spring. Beautiful for edging a sunny border or spilling over rock walls or the edges of large planters. To maintain a compact habit, prune plants back hard immediately after blooming. Firewise.

Saponaria x lempbergii
  • Common name: Giant Soapwort
  • Zone: 4
  • Exposure: Sun
  • Height x Width: 5" and sprawling
  • Native to: Mediterranean

Late blooming, vigorous groundcover with large light purple flowers. Large-scale groundcover. Firewise.

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. Firewise.

Water needs: • Bloom period: