Name: Pulsatilla patens Growing Conditions: Full sun and well-drained soil Size: To 1 foot tall Zones: 4-9 Name: Dalea purpurea Growing Conditions: Full sun and well-drained soil Size: 18-36 inches tall Zones: 3-8 Name: Opuntia polyacantha Growing Conditions: Full sun and well-drained to dry soil Size: To 15 inches tall Zones: 3-9 Name: Yucca glauca Growing Conditions: Full sun and well-drained soil Size: To 5 feet tall Zones: 4-9 Name: Festuca idahoensis Growing Conditions: Full sun and well-drained soil Size: To 18 inches tall Zones: 5-9 Name: Liatris pycnostachya Growing Conditions: Full sun, damp to dry soils Size: To 4 feet tall Zones: 3-9 Name: Castilleja integra Growing Conditions: Full sun and well-drained soil Size: To 3 feet tall Zones: 4-7 Name: Callirhoe involucrata Growing Conditions: Full sun and well-drained to dry soil Size: To 8 inches tall Zones: 4-8 Note: This long-lived plant can take a few years to get established—so be patient with it. Name: Asclepias tuberosa Growing Conditions: Full sun and well-drained soil Size: To 4 feet tall Zones: 4-10 Name: Solidago selections Growing Conditions: Full sun and well-drained soil Size: To 4 feet tall, depending on variety Zones: 4-8 Name: Agastache rupestris Growing Conditions: Full sun and well-drained soil Size: To 4 feet tall Zones: 4-9 Name: Schizachyrium scoparium Growing Conditions: Full sun and well-drained soil Size: To 3 feet tall Zones: 3-9 Name: Silphium laciniatum Growing Conditions: Full sun and well-drained soil Size: To 9 feet tall Zones: 3-8 Note: Like many coneflowers, it will self-seed and produce a nice colony in your landscape. Name: Echinacea pallida Growing Conditions: Full sun and well-drained soil Size: To 40 inches tall Zones: 3-10 Name: Echinocereus viridiflorus Growing Conditions: Full sun, dry soils Size: To 9 inches tall Zones: 4-10