Common Garter Snake
(Thamnophis sirtalis)
Photo Courtesy of Jayne Thomas
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The Common Garter Snake can reach lengths of 18 inches to over 4 feet and is the most common snake in North America. Their coloration is highly variable. In the east they usually have yellow back and side stripes though colors of brownish, greenish, or bluish will sometimes occur as well. Some specimens will also lack stripes or appear all black in color.
These live-bearers mate from late March to early May. In late June to August females have 7 - 85 young born. Young garter snakes are 5 - 9 inches when born.
The Common Garter Snake is by far one of the most common snakes encountered in the wild. They can often be found during the day hunting for food in damp vegetation. Garter snakes eat frogs, toads, salamanders and earthworms. Occasionally they can also be found eating fish and small mice. When first captured in the wild they are aggressive and will often bite or emit a foul musk. As with any wildlife it is always best to place the animal back where you found it after you have taken your opportunity to observe and photograph it.
If you are looking for care information on the many other different types of garter, ribbon, and water snakes available in the pet trade, please check out our Garter, Ribbon, Water Snakes Care Sheet.