Heat and drought don't slow angelonia down—it flowers nonstop from planting through frost in Alabama heat, even when you miss a watering. The narrow spikes come in pink, white, or purple, depending on variety, and they attract pollinators while staying loose and airy in the garden.

Plant it in full sun and decent soil, then let it run. Deadheading keeps blooms coming thicker, but skip it and you'll still have flowers.