Testudo hermanni (Hermann's Tortoise) – Comprehensive Breeding and Care Guide

Testudo hermanni

Hermann’s Tortoise – The Ultimate Pet & Breeder Favorite

Testudo hermanni boettgeri

Introduction:

Testudo hermanni – Hermann’s tortoise, often affectionately nicknamed the "domestic tortoise" by breeders. As is my custom, I will write exclusively based on my own long-term practical experience with this species. These tortoises fall under CITES Appendix A. As an owner, you legally require CITES documentation and, for any sale or transfer, an exemption from commercial prohibition (the yellow certificate). This guarantees that everything will proceed smoothly with local authorities. Geographically, they are split into two main subspecies: Testudo hermanni boettgeri and Testudo hermanni hermanni. The differences lie mainly in coloration and size. T. h. hermanni features distinct longitudinal black stripes on the plastron and reaches smaller sizes around 14–16 cm, predominantly inhabiting Western Europe. While telling subspecies apart requires an expert eye, both remain fundamentally the same species: Testudo hermanni.

Males are roughly 1/3 smaller than females and feature a noticeably wider posterior carapace when viewed from above, whereas females have a more regular, symmetrical shape. Specific anatomical traits, such as the tail spur and divided supracaudal scute, are detailed in our dedicated guide: TORTOISE SEX AND SPECIES IDENTIFICATION.

These tortoises adapt remarkably well to our Central European climate. When provided with proper husbandry conditions, they are hardy, unbothered by normal weather fluctuations, and can spend day and night outdoors in an open-air enclosure from early spring to late autumn. Adult tortoises often bypass indoor enclosures entirely, living outdoors year-round—which I consider the ideal and highest-quality lifestyle for a tortoise.

T. hermanni was the very first tortoise I ever purchased from a pet shop, and unfortunately, it passed away within a year due to initial health issues and outdated care literature. Today, I know exactly what is needed, and breeding these tortoises is a complete success. I gradually acquired adult animals mostly from smaller breeders as random additions, creating a diverse palette of sizes and color morphs in my tortoise park. They live together in a large outdoor enclosure alongside Testudo graeca, with zero interspecies aggression, even among males.

Established male groups rarely fight unless a new adult male is suddenly introduced. When that happens, intense duels occur until dominance is established through biting, ramming, and aggressive hissing face-to-face. I once observed two warriors sparring for three straight days without backing down before finally settling their hierarchy peacefully. Since then, total peace has reigned.

Acquiring healthy adult tortoises with complete paperwork can be challenging, especially females, which are practically unavailable. Males are easier to find, but in both cases, it is a stressful process. My tortoises are fully microchipped, and shell notches or marks are purely informational (to tell Max from Ferdo). After waking from hibernation, their appetite knows no bounds until summer, when activity naturally slows down with rising temperatures.

Testudo hermanni boettgeri

Males feature a noticeably narrower front section compared to the back of the carapace

Size differences, shell shapes, and the characteristic divided supracaudal scute

Visible sexual dimorphism in tail length and plastron shape

Noticeable size variation among adult females from different localities

Testudo hermanni hermanni

Adult pair from Tuscany showing striking yellow coloration, smaller size, and heavily black-pigmented plastron.

Natural Distribution:

Hermann’s tortoise populations begin in the west on the Iberian Peninsula, continuing east through Italy, former Yugoslavia, Albania, Romania, Bulgaria, Greece, and ending in western Turkey. Subspecies T. h. hermanni is found mainly in France, Spain, and the Balearic Islands at altitudes of 500–600 m, reflecting a Western European orientation, while the eastern range belongs to boettgeri.

Map showing the vast distribution territory of Testudo hermanni

Detailed scientific distribution map of Testudo hermanni

Outdoor Enclosures:

Outdoor areas should be as large as possible, south-facing, and positioned to receive all-day sunshine. Combine diverse terrains and natural obstacles. Shaded areas provided by bushes or trees are mandatory. Fences should be at least 45 cm high and smooth. Because they do not dig deep burrows, burying the fence 5 cm into the ground is sufficient. Always cover juvenile enclosures with wire mesh to protect hatchlings from predators (cats, birds of prey, martens).

Section of the outdoor enclosure featuring varied terrain, shelters, and adequate fencing

Hatchling enclosure secured with wire mesh protection

Diet:

Mediterranean tortoises are almost exclusively herbivorous! Early in spring, they receive Chinese cabbage until fresh grass appears, after which I transition to hand-picked field weeds (dandelions, plantain, clover). Fruit is offered only occasionally and sparingly when naturally available. Regular calcium supplementation (e.g., sepia bone) prevents deficiencies, especially prior to egg-laying. I do not use commercial pellets or artificial products.

The ideal natural diet for a land tortoise

Egg Laying:

Clutches typically occur between May 1st and May 5th, with a second clutch around May 20–25, and occasionally a third around June 15th (yielding 2 to 8 eggs per clutch). Females dig a nest chamber in the morning hours, lay their eggs, and carefully cover and pack the soil using their hind legs. The entire process takes about 1 to 1.5 hours.

Nest chamber finishing touches before egg deposition

Laying the first egg

Hatching:

Eggs are transferred to an incubator operating at ~31°C with 80–100% humidity. Hatching begins between 55 and 60 days using vermiculite substrate. Hatch success is consistently above 92%. Never assist hatching or pull babies from their shells prematurely; wait until they fully absorb their yolk sac and emerge on their own.

Patient waiting during incubation

A hatchling breaking the shell on its own

Hatchlings showing initial soft, folded carapaces

Hatchlings 3 days post-hatching

Authorities & CITES:

Hatchlings must be photographed alongside a ruler covering 2/3 of the frame (showing plastron and scale patterns clearly) to apply for CITES documents and commercial exemptions at your regional authority.

Hatchling photo setup for CITES registration on 1x1 cm grid paper

Hibernation:

Proper winter hibernation is natural and essential. Our weight records show that healthy tortoises maintain or even slightly increase their weight during months of proper cellar brumation, proving excellent husbandry conditions.

Breeder Note on Subspecies T.h.h:

*T. h. hermanni* is an officially unrecognized subspecies by authorities; therefore, paperwork will always state *TESTUDO HERMANNI*. The primary advantage of acquiring this form is its smaller adult size, while coloration naturally varies. True 100% locality-pure imported animals are illegal to source from the wild; thus, captive breeding groups maintained over generations in the Czech Republic represent the best available option.

Expert Advice:

Remember the rule: the further east the natural locality (Croatia, Albania, Greece, Bulgaria), the larger the adult tortoise. Choose based on your available garden space and desired adult size.

Subspecies Size Breakdown

• T. hermanni hermanni: approx. 13–17 cm (locality form)
• T. hermanni boettgeri (standard form): approx. 17–23 cm (most common)
• T. hermanni boettgeri (smaller form): approx. 15–18 cm
• T. hermanni boettgeri (larger form): approx. 24+ cm

Conclusion:

Keeping Hermann’s tortoises is an immensely rewarding experience. They are hardy, thrive outdoors from spring to autumn, and require minimal operating costs when correctly maintained. Always purchase animals with complete paperwork.