Hermann's Tortoise (Testudo hermanni)
At a glance
| Adult size | 6-8 in shell length |
| Lifespan | 50-75 years |
| Enclosure | Outdoor preferred · indoor 4×2 ft minimum |
| Temperature | Ambient 70-80°F · Basking 95-100°F |
| Humidity | Moderate (40-60%) with humid hide for juveniles |
| UVB | T5 HO 10-12% · outdoor access ideal |
| Diet | Grasses, weeds, leafy greens — no fruit, no protein |
| Handling | Low tolerance — display animal |
Why this species
- Manageable adult size unlike sulcatas
- Brumates naturally — handles cooler climates
- Outdoor housing possible in zones 6-9 with cold-weather shelter
- Well-documented care — one of the most-studied pet tortoises
Why not
- 50-75 year commitment — succession plan required
- Outdoor space strongly preferred over indoor
- Juveniles need humid microclimate to prevent pyramiding
- Not handleable — display only
Frequently asked questions
How big do Hermann's tortoises get?
6-8 inches in shell length as adults. Eastern subspecies (T. h. boettgeri) reach the larger end; Western (T. h. hermanni) tend smaller. Significantly more manageable than sulcatas.
How long do Hermann's tortoises live?
50-75 years with proper care. Some individuals exceed 90. Plan for the animal to outlive the original keeper.
Do Hermann's tortoises brumate?
Yes. Wild populations brumate October through March. Captive adults benefit from brumation in cold but controlled conditions; juveniles under 3 years can be kept warm year-round.
Can Hermann's tortoises live outside?
Yes, in USDA hardiness zones 6-9 with a heated insulated shelter for winter. Outdoor housing is preferred by most keepers and the tortoise.
What do Hermann's tortoises eat?
Grasses, weeds (dandelion, plantain, clover), and leafy greens. No fruit, no animal protein, no commercial pellets as a staple. Avoid spinach and rhubarb (oxalates).