Threadleaf Giant Hyssop has numerous spikes of uniquely-colored orange-purple tubular flowers over fragrant, finely divided leaves. It blooms in the heat of mid-summer and persists into fall. Outstanding hummingbird plant and nectar source for bees. More info here.
Pearly Everlasting is a sturdy, undemanding native wildflower that produces hundreds of glowing, white flowers, accounting for its “pearly” appearance. Fine food source for butterflies and host plant for the American Painted Lady. Firewise. More info here and here.
Narrow Leaf Milkweed, native to Southern Idaho, is smaller and more drought-tolerant than the better-known Showy Milkweed. Mauve-pink flowers emerge in mid-summer. With extra water, bloom time is extended. Host plant for Monarch butterflies.
Harebells is a lovely little wildflower is a native to most of the U.S., including Idaho. Its nodding blue flowers are held on wiry stems above attractive basal foliage. Great for borders, rock gardens. Pollinators: native bees. Firewise. More info here.
Purple Prairie Clover produces lovely purple bottle-brushes on erect stems. Perfect specimen plant or as part of a meadow or prairie planting. Long-lived, with a deep taproot. Often found on eroded, depleted soils, including caliche. Supports bees and butterflies and fixes nitrogen.
This tap-rooted perennial is found in open, dry prairies of the Midwest, and is prized for its medicinal value. It is also highly ornamental, with lovely purple coneflowers floating above narrow-leaved stalks. Good nectar plant for butterflies and bees.
Common name: Rocky Mountain Daisy or Threenerve Fleabane
Height x Width: 2' x 2'
Native to: Idaho
Rocky Mountain Daisy is a freely flowering purple daisy that brightens up the mid-summer garden. It is similar to Showy Fleabane (Erigeron speciosus) but is taller and blooms a bit later. Supports bees and butterflies.
This striking buckwheat bears long racemes of white or white/pink flowers atop tall, leafless stems. In its native habitat of low foothills and mountain dry meadows from New Mexico to Nevada, it can grow in colonies of hundreds or thousands. Supports native bees.
Amethyst Sea Holly has leathery, blue-green leaves with medium-tall stems bearing striking thistle-like, steel-blue flowers and matching bracts. The flowers appear in mid summer and remain effective until fall. An eye-catching garden accent!
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.
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.
Broom Snakeweed has attractive deep green, finely cut foliage on this tough Owyhee County native. Plants are completely covered with tiny yellow blossoms, mid to late summer and into early fall. Evergreen.
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!
Similar to the more common Ocean Spray, but growing in hotter, drier conditions. It thrives in dry rocky desert valleys and hillsides from Idaho south to Arizona and New Mexico. Foamy waves of white flowers cover this native shrub in summer. Supports native pollinators. Firewise.
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
Prairie Junegrass is a native, perennial, cool season tufted bunch grass , growing actively when soil temps are cooler in spring and fall. It produces lustrous silver-green seedheads in early summer. The supporting foliage is an attractive green-gray color. June Grass prefers full sun and dry, sandy soil.
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.
Rocky Mountain Blazing Star produces tall stalks of lavender/purple flowers. 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. Firewise.
Dense Blazing Star: With showy spikes of pink flowers over grass-like foliage, Dense Blazing Star will add stunning variety, texture & beauty to your border or meadow. Excellent cut flower. Nectar plant for butterflies. Firewise.
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.
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.