Outsidepride Bellflower Campanula Carpatica White Ground Cover Plant Seed - 5000 Seeds Bellflower White grows as a perennial in USDA Zones: 3 - 8 and prefers full sun over partial shade. Campanula Carpatica only grows to a height of 8 inches with white blooms that will attract hummingbirds from summer to fall. These low-growing flowers are perfect for rock gardens, an edging ground cover, or as a container plant on your porch. Sow these heirloom seeds at 3 - 4 seeds per plant or approximately 5000 seeds covers 100 square feet. Keep moist until germination occurs in 14 - 28 days. Our seeds are always Non-GMO and packaged for the current year.