Garden snakes, also known as garter snakes, are a common species of non-venomous SNAKE found in North America. They are typically small and slender, ranging from 18 to 26 inches in length. The scientific name for GARDEN snakes is Thamnophis sirtalis, and they are often identified by their distinctive stripes. GARDEN snakes are often confused with the more dangerous water moccasin, but can be distinguished by their lack of a triangular head shape. The crossword solutions for the term GARDEN SNAKE are SERPENT (7 letters) and HOSE (4 letters).