Keepers Guide

reptile

Hermann's Tortoise

Testudo hermanni

Hermann's tortoise is frequently shelved next to the Russian and Greek tortoises as an interchangeable 'small Mediterranean tortoise,' but a few concrete anatomical differences separate it from both. Unlike a Greek tortoise, which carries a pair of horny thigh spurs and no nuchal scute above the head, a Hermann's tortoise has a distinct nuchal scute and lacks the femoral spurs entirely. Its most reliable field mark, though, is at the other end of the animal: the tail ends in a hardened, claw-like horny tip (sometimes called a tail nail), and in most individuals the supracaudal scute directly above it is split into two plates rather than forming one unbroken shield — a pattern that varies somewhat by subspecies and individual but is still a useful quick check when a keeper is trying to confirm they have a Hermann's rather than a similarly built relative. The species also splits into two recognized subspecies with a real size gap between them: the western T. h. hermanni tends to stay notably smaller and more strikingly patterned, while the eastern T. h. boettgeri grows measurably larger and is the subspecies most commonly available in the pet trade. Both come from a genuinely seasonal Mediterranean climate with a real winter, which is the other defining fact shaping this species' care — unlike a sulcata or other tropical/subtropical tortoise, a healthy adult Hermann's is adapted to a period of winter dormancy rather than being kept warm and active year-round.

Lifespan

40-60+ years is typical with correct husbandry, and well-documented individuals have passed 75

Size

5-8 in (13-20cm) carapace for the smaller western subspecies (T. h. hermanni); the eastern subspecies (T. h. boettgeri) commonly reaches 8-11 in (20-28cm)

Origin

Dry Mediterranean scrub, coastal hillside, and open woodland edge across Italy, southern France, the Balkans, and parts of Greece and Turkey

Husbandry

Enclosure size
Minimum 4x4ft indoor floor space for one adult, open-topped tortoise table rather than a glass tank; a securely fenced outdoor grazing pen sized considerably larger is strongly preferred through the warm season
Source: Merck Veterinary Manual — Chelonian Husbandry (checked 2026-03-15)
Temperature gradient
A hot end of roughly 90-95°F under the basking bulb, easing back to 75-85°F through the rest of the day, and left to fall into the 60s°F once the lights go off — this species comes from a climate with a genuine cool season and doesn't need or benefit from an artificially warm night
Source: Association of Reptilian and Amphibian Veterinarians (ARAV) husbandry guidance (checked 2026-03-15)
Humidity
Kept noticeably higher for hatchlings and juveniles, in the 50-70% range, to reduce the risk of pyramided shell growth during the fastest-growing years; adults handle a drier enclosure without issue once past that early growth window
Source: Merck Veterinary Manual — Chelonian Husbandry (checked 2026-03-15)
UVB lighting
A UVB tube in the 10-12% output range, positioned over most of the basking area and swapped out roughly twice a year, since UVB output fades well before a bulb stops producing visible light
Source: UVGuide UK / ARAV lighting guidance (checked 2026-03-15)
Diet
A varied rotation of edible weeds — dandelion, sow thistle, plantain, clover — forms the bulk of a healthy diet, chosen for being calcium-rich and low in oxalates; fruit belongs in the diet only as an occasional trace amount rather than a routine offering
Source: Merck Veterinary Manual — Chelonian Nutrition (checked 2026-03-15)
Cohabitation
Rival males fight persistently when housed together, and even a single male can wear down a female through relentless mounting attempts if the pen is too small for her to get clear of him; a solitary tortoise, or one male paired with several females in a genuinely large space, avoids both problems
Source: ARAV husbandry guidance (checked 2026-03-15)
Substrate
Loamy soil mixed with coarse sand, deep enough for the tortoise to scrape out a shallow depression to lie in during the hottest part of the day and, when the season calls for it, to begin settling in for winter dormancy
Source: ARAV husbandry guidance (checked 2026-03-15)

Honest disagreement among sources

Whether to brumate (hibernate) a healthy captive adult

Current best practice: A pre-hibernation veterinary check, weight and gut-clearance verification, then a controlled and monitored cold period — most commonly a refrigerator-based method held at a steady, checked temperature rather than an unmonitored outdoor pit

Noted disagreement: Some keepers, particularly those working with captive-bred stock several generations removed from a wild seasonal climate, choose to skip brumation entirely and hold stable warm temperatures year-round, arguing there's no welfare requirement to replicate a dormancy period an individual tortoise's own lineage may no longer physiologically need; others consider brumation a core part of this species' long-term health and reproductive cycling and brumate every healthy adult annually

Myth flagged: Brumating a tortoise that is underweight, unwell, or has any unresolved respiratory or parasite issue is genuinely dangerous — dormancy is not a safe default for a compromised animal, whichever side of the broader debate a keeper takes

Handling

Hermann's tortoises tend to read as moderately confident rather than shy once settled — many individuals learn a keeper's feeding routine quickly and come out of hiding at the sound or sight of it, though a first pickup from a new tortoise more often produces a hiss and full withdrawal into the shell than calm tolerance. Males can be noticeably pushier and more physically assertive than females, both toward other tortoises and, less dangerously, toward a keeper's hand during feeding, ramming or nudging in a way that's more about food drive than aggression. The tail's hardened tip is worth being aware of during routine handling and enclosure cleaning, since it's a genuinely different structure from the softer tail of most other reptiles kept as pets and can catch or scrape against rough surfaces if a tortoise backs into a tight space. A tortoise discovered upside down needs a keeper's help getting upright again quickly, whatever species it is, and real outdoor time under unfiltered sun, when weather and enclosure security allow it, gives this species a boost to activity and mood that no indoor lighting rig fully matches.

Signs of good health

Common problems

14 common reptile problems are tracked for this species; 0 have full guides published so far.

Recommended gear for this taxon

Equipment categories that are genuinely correct for this species' welfare needs — see the full Gear Guide for the complete list.

Digital infrared temperature gun

Measures actual basking SURFACE temperature, not just ambient air — a stick-on dial thermometer reads air temp, which is a poor proxy for the surface temp that drives digestion and thermoregulation.

Proportional (not on/off) thermostat

Holds a heat source at a stable target temperature rather than the wider swings an on/off thermostat allows — meaningfully reduces both overheating and cold-snap risk.

T5 HO UVB tube + reflector fixture

T5 HO output is more consistent across the basking area than compact/coil UVB bulbs, and a reflector fixture roughly doubles usable UVB output from the same bulb — match the % output to your species' sourced requirement and replace every 6-12 months regardless of visible light output.

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This is general educational care information, not veterinary diagnosis. For a sick or injured animal, see a qualified exotic-animal vet promptly — especially for anything acute (not eating combined with lethargy, breathing changes, bleeding, or any sudden behavior change). Nothing on this page substitutes for an in-person exam.