Baptisia australis 3-4' × same. Vibrant blue lupine-like flowers in early summer. Bushy habit and shrub-like structure once mature. Good for erosion control. Z3.
Amsonia tabernaemontana var. salicifolia 24–36" tall. Fine grassy willow-like foliage. Clusters of powder-blue florets in early summer. Best planted en masse. Z3.
Crocosmia × crocosmiiflora 24-36" tall. Midsummer sprays of bright red flowers open from bottom to top on long arching bronze stems. Grows well in pots. Makes a long-lasting cutflower.
Echinops ritro 3–4' tall. Luminous steel-blue spiky spheres on stiff stems with silvery green leaves. Excellent for fresh or dried arrangements. Blooms mid-to-late summer. Z3.
Zizia aurea 18-32" tall. Native wildflower is an important pollinator plant. Long bloom time, late spring to summer. Short-lived perennial spreads by seed. Z3.
Astrantia 24-28". Clump-forming perennial makes an excellent groundcover when planted en masse. Makes long-lasting cutflowers and is also a great container plant. Z4.
Eryngium yuccifolium 3-6' tall. Globe-thistle-like 1" greenish-white flowerheads. Subtle honey-like scent. North American native. Great for cutflower production. Z3.
Sempervivum Low-growing rosette-forming succulents produce runners and babies. Drought and heat tolerant. Cold-hardy too! Colorful mix of reds, greens and purples. Z3.
Viola sororia 6-10" tall. North American native with cheery blue-purple flowers and attractive heart-shaped leaves, all edible. Larval host plant for multiple species of butterflies. Z3.
