Beardtongue Perovskia atriplicifolia Russian sage Pulsatilla vulgaris Pasque flower Rudbeckia spp. Gloriosa daisy Salvia spp. Lavender cotton Sedum spectabile Autumn sedum Sempervivum spp. Cosmos Eschscholzia californica California poppy Gaillardia pulchella Blanket flower Gazania spp. Morning glory Lantana spp.
Many spring flowering bulbs grow actively when natural spring rainfalls keep soils moist.
They stop active growth and go dormant in the summer when soils dry down. Most of these bulbs can be used in water-conserving landscapes. Species native to dry regions of the world can be used in even the driest parts of the garden.