Need a reliable, long-blooming perennial that spills over borders and containers with masses of rich blue, star-shaped flowers? ‘Cariboo Blue’ Serbian Bellflower delivers an abundance of vibrant, sky-blue blooms from late spring into summer, forming a dense, trailing mat of lush green foliage. This low-growing, easy-care perennial thrives in rock gardens, pathways, and hanging baskets, offering nonstop color with minimal maintenance. Pollinators love it, deer ignore it, and gardeners swear by it for effortless charm and ground-hugging beauty.