How long do garter snakes live
Garter snakes live 6–10 years in captivity. Hardy but sensitive to poor hydration and dirty water — they often defecate in their water bowl and need it changed daily. The usual risks are respiratory infection from low temps and dehydration. A clean, warm, humid-enough setup keeps them healthy.
Enclosure and group living
A 20–40 gal (75–150 L) enclosure suits one or a small group; more space for groups. Provide substrate (aspen, coconut), hides, a heat gradient, and a large water bowl they can soak in (they love water). Secure lid — snakes are escapes. Slightly higher humidity (40–60%) than desert species.
Heat and light
Basking 85–90°F (29–32°C), cool side 70–75°F (21–24°C), with UVB beneficial though not strictly required. A daylight cycle helps their activity. Avoid overheating — a thermal gradient lets them regulate. Fresh water daily is critical.
Diet: the odd menu
Garters eat earthworms, fish (tilapia, guppies), and amended slugs; captive diets use thawed silverside fish and earthworms, with occasional pinkies for some. Most refuse mice. Feed juveniles every 2–3 days, adults weekly. Variety prevents deficiency. Some produce a mild musk when handled — wash hands after.
Beginner mistakes to avoid
- Letting the water bowl go dirty — they foul it daily.
- Feeding only mice — many garter snakes refuse them.
- Too dry — they need moderate humidity.
- Lid not secure — snakes escape.