Cotula squalida 'Platt's Black'

Common Name: Platt's Black Brass Buttons

Ground cover, to only 2" tall, and spreading by runners with ferny foliage, very black in this culvivar. Sun to part shade in well-drained soil. Prefers summer moisture but tolerates low summer water. Good for rock gardens or cover for gravel mulch where the color makes a good contrast. Evergreen to 20 °F and frost hardy in USDA zone 8, recovering quickly.