Rebecca Kolls shared this list of DROUGHT TOLERANT PERENNIALS
Amsonia
Autumn sage (Salvia greggii)
Balloon flower
Bearded irises
Blazing Star (Liatris)
Blue flax (Linum perenne)
Blue spirea (Caryopteris x clandonensis)
Broom (Cystisus and Genista)
Butterflyweed (Asclepias tuberosa)
Candytuft (Iberis sempervirens)
Coneflower (echinacea)
Creeping phlox
Creeping thyme; wooly thyme
Culinary sage (Salvia officinalis)
Dianthus, including Cheddar Pink and others
Gaillardia
Gaura
Gayfeather or blazing star (Liatris)
Globe thistle (Echinops)
Harebell (Campanula rotundifolia)
Hens-and-chicks
Ice plant (Delosperma)
Lambs’ ears
Oregano, including ornamental-flowered varieties
Ornamental grasses (non-invasive varieties)
Pine-leaf penstemon (Penstemon pinifolius)
Purpletop verbena (Verbena bonariensis)
Red yucca (Hesperaloe parviflora)
Red-hot poker
Rock rose (Cistus)
Rosemary
Russian Sage
Sea holly (Eryngium)
Sedum
Sun rose (Helianthemum)
Thread-leaf coreopsis
