Planting in between the sidewalk and street. Allium giganteum (Allium 'Globemaster'), steppe sage (Salvia memorosa 'Caradonna'), catmint (Nepeta x faassenii 'Walkers Low') and peat reed grass (Calamagrostis x acutiflora 'Karl Foerster').
Pretty Cool gardening idea that inspired me! Love the colour idea.
If you live in a hot, dry climate, choose perennials that thrive in those conditions. Heliopsis and Coreopsis have roots in the American prairie, so you know these flowering beauties will keep on blooming even though temperatures and rainfall fluctuate