Creeping zinnia, or Sanvitalia, is a native of Mexico and Central America. A low grower that adorns the summer garden with radiant pointed gold petals stitched around velvety brown centers. Quickly blooming and well-behaved, it thrives in heat and humidity, creating carpets of narrow, deepest green leaves and bright flowers. Garden edges and paths and containers are good sites—well-drained, moist soils and sun are the only requirements.