Evolvulus (Morning Glory)

Evolvulus 'Blue Daze' (Evolvulus glomeratus) is a popular, low-maintenance, heat-loving tender perennial (grown as an annual in cooler climates) known for its vibrant sky-blue, funnel-shaped flowers and fuzzy, silver-green foliage. It thrives in full sun, forming a trailing, 9- to 18-inch tall mound that spreads up to 3 feet. Ideal for containers, hanging baskets, and ground cover, it blooms continuously from spring through frost, with flowers that close at night. 
Key Characteristics and Care
Flowers: Small (approx. 1 inch), true-blue, funnel-shaped, often with white centers.
Light: Full sun is required for best blooming.
Water/Soil: Highly drought-tolerant once established but prefers consistent moisture. Requires well-drained, average, or sandy soil.
Habit: Mounding, trailing habit that is ideal for edging, ground cover, or spilling over containers.