"Native plants" is not one list — it is a different list for every region, and using a native-plant guide written for another climate is a common beginner mistake. Below are reliable regional starting points; always cross-check against your specific state's native plant society list before buying.
Pacific Northwest
Oregon grape, red-flowering currant, and sword fern all thrive in the region's wet winters and dry summers without irrigation once established.
Southwest & high desert
Penstemon, blackfoot daisy, and desert marigold handle intense heat and minimal water while still flowering through most of the growing season.
Midwest & prairie states
Purple coneflower, black-eyed Susan, and little bluestem grass recreate prairie structure and are genuinely low-maintenance once their deep root systems establish in year two.
Southeast
Coral honeysuckle, oakleaf hydrangea, and muhly grass tolerate the region's humidity and clay soils far better than most ornamental imports.
Why "established" matters more than the plant list
Nearly every native plant needs consistent watering for its first full growing season while its root system develops. The water savings that native landscaping is known for only appear in year two and beyond — do not judge a native planting's water needs by its first summer.
