Lily-of-the-valley is a tough, low-care groundcover you can plant in shady spots. It has a lovely fragrance and nodding white or pink bell-shape flowers. There is also a variegated leaf variety. Lily of the valley is poisonous
This stuff is amazing. Its cheap, heat tolerant, grows like crazy, and lasts for months! A wave of color. I plant sweet potato vines and coleus in my pots every year and they do great all summer and into fall.