Tortoise Care Guide UK 2026: Hermann's & Horsfield Husbandry, Costs & New Law

A tortoise can be one of the most rewarding and long-lived pets in the UK — but the "easy first reptile" reputation only holds when the lighting, heating and diet are right from day one. Most of the health problems vets see in pet tortoises come down to the wrong setup or the wrong food, not a difficult animal.

If you are reading this before buying, you are already doing the right thing. This guide covers everything a UK keeper needs for the two species you will actually find in British shops — the Hermann's tortoise and the Horsfield (Russian) tortoise — including housing, UVB, a safe weed-based diet, realistic prices, and the brand-new law that changed how these animals are sold from 23 June 2026.

Is a Tortoise Right for You?

A tortoise is a calm, characterful, low-drama pet that will happily potter around an enclosure or a summer garden for decades. They do not need walking, they rarely bite, and watching one trundle over to its food is genuinely lovely. For the right household, they are a brilliant introduction to keeping reptiles.

The honest counterpoint is lifespan. A well-kept Mediterranean tortoise commonly lives 50 to 100 years, and many outlive the person who bought them. Buying a tortoise is closer to planting an oak tree than getting a hamster — it is a multi-decade, sometimes multi-generational, commitment. That is not a reason to be put off, but it is a reason to plan properly and learn the husbandry before you bring one home.

Tortoise key facts

• Best UK species: Hermann's and Horsfield (Russian) tortoises
• Adult size: roughly 15-20cm shell length (some females larger)
• Lifespan: 50-100 years, occasionally more
• Temperament: calm, slow, tolerates gentle handling
• Activity: diurnal — active and watchable during the day
• UK legal status: no Dangerous Wild Animals licence required

A tortoise is also a wonderful first reptile precisely because the care, once set up correctly, is so steady. If you are still weighing up your options, our best first exotic pet guide for beginners compares tortoises against other starter species, and you can browse our wider species care guides to see how the commitment compares.

Hermann's vs Horsfield: Which Tortoise?

Almost every pet tortoise sold in the UK is one of a handful of Mediterranean Testudo species. The two you will meet most often are the Hermann's tortoise (Testudo hermanni) and the Horsfield tortoise (Testudo horsfieldii), also called the Russian tortoise. They look similar to a newcomer but behave quite differently.

For a first tortoise, most UK keepers and welfare groups recommend a captive-bred Hermann's. They are hardy, forgiving of small beginner mistakes, and well suited to the British climate and a Mediterranean-style diet. Horsfields are charming but are restless, powerful diggers from the dry steppes of Central Asia — they escape gardens readily and cope less well with the UK's damp. Whichever you choose, always buy captive-bred from a reputable breeder or rescue, never a wild-caught import.

The New 2026 Law: Article 10 & CITES

This is where tortoise ownership differs from almost every other reptile, and where the rules changed very recently — so if you read an older care sheet, it is now out of date.

Until June 2026, Hermann's, spur-thighed and marginated tortoises were listed on CITES Annex A, the same protection level as African grey parrots. Anyone selling one needed a DEFRA Article 10 certificate (often called an "A10"). On 3 June 2026 the House of Commons approved changes to the UK wildlife trade regulations, and from 23 June 2026 these Mediterranean tortoises moved from Annex A to a new Annex X.

What changed in plain English

• Selling is simpler. From 23 June 2026, Hermann's, spur-thighed and marginated tortoises can be sold, transported and exhibited within the UK without an Article 10 certificate.
• Horsfield tortoises were never affected. As a less-protected species, the Russian tortoise never required an A10 for UK sale.
• Microchipping is not compulsory under the new rules, although many keepers and welfare bodies still recommend photo ID, mini-microchipping or registration to help reunite lost tortoises and prove a captive-bred origin.

If you are buying an older tortoise that was sold before 23 June 2026, it should still come with its original Article 10 paperwork — keep it safe, as it is part of the animal's history and may matter if you ever rehome it. Because this change is so new, always confirm the current position on the official GOV.UK endangered species commercial-use guidance and the wider GOV.UK CITES import and export rules before you buy or sell.

Whatever the paperwork, every tortoise keeper is bound by the Animal Welfare Act 2006, which legally requires you to meet the animal's needs for diet, environment and health. For how tortoises fit into the wider picture of UK pet law, see our complete UK exotic pet legal guide.

Housing: Tortoise Table vs Vivarium

The single most important decision you will make is what to keep your tortoise in — and most pet-shop "starter kits" get it wrong by selling glass vivariums.

Mediterranean tortoises come from warm, dry, breezy habitats. A sealed glass vivarium traps heat and humidity and has poor airflow, which over time encourages shell deformities and respiratory infections. The right choice is an open-topped tortoise table: a shallow wooden enclosure, open at the top, with the heat and UVB lamp suspended above it. The constant ventilation keeps humidity low and lets you build a proper warm-to-cool temperature gradient.

Tortoise table essentials

• Size: bigger is always better; aim for at least 90cm x 60cm of floor space for a single adult, and scale up from there.
• Open top: essential for airflow — never put a lid on a tortoise table.
• Solid sides: tortoises will try to walk through clear glass repeatedly, so opaque wooden sides reduce stress.
• A hide: a cool, shaded retreat at the far end from the lamp.
• Shallow water dish: large enough for the tortoise to sit in, shallow enough that it cannot drown.

Illustrative imageOur pick · checked August 2026ADWooden Tortoise TableOpen-top pine housing with proper airflow — the ventilation closed glass vivariums simply cannot provide.Available at Amazon →

Heating, Lighting & UVB

Tortoises are ectothermic, which simply means they cannot make their own body heat — they bask to warm up and move into the shade to cool down. Your job is to give them both options every single day.

Temperature

Set up a clear gradient across the table:

• Basking spot (under the lamp): 30-32°C
• Cool end: around 20°C
• Overnight: no heating needed at normal UK room temperatures; a natural night-time drop is healthy

Measure both ends with a digital thermometer and check them daily — guesswork is how tortoises end up too cold to digest their food, or overheated.

Illustrative imageOur pick · checked August 2026ADThlevel Digital Thermometer/Hygrometer (3-pack)Measure both ends of the tortoise table daily — aim for 30-32°C at the basking spot, 20°C at the cool end.Available at Amazon →

UVB lighting (non-negotiable)

Tortoises need UVB light to make vitamin D3, which lets them absorb calcium and build healthy bone and shell. Without it they develop crippling metabolic bone disease. Crucially, UVB does not pass through glass or plastic, so a sunny windowsill is not enough.

Provide UVB with either a 10-12% (often labelled UVB 12.0) T5 fluorescent tube running across much of the table, or an all-in-one mercury-vapour bulb that supplies heat and UVB together. Replace fluorescent tubes roughly every 12 months (T5) — they stop emitting useful UVB long before the light looks dim. Position lamps at the height the manufacturer specifies, usually around 30cm above the tortoise's shell.

Illustrative imageOur pick · checked August 2026ADArcadia D3 Mercury Vapour 80WCombined heat and UVB in one bulb — simplifies the setup and closely mimics Mediterranean sunlight intensity.Available at Amazon →

Substrate & Humidity

The substrate is the loose material on the floor of the table. The best option for Mediterranean tortoises is a natural, dust-free mix that holds a little moisture in the lower layer but stays dry on top — a blend of topsoil and play sand, or a commercial tortoise substrate, works well. Provide a depth of at least 25-50mm so the tortoise can scrape out a shallow sleeping scrape.

Illustrative imageOur pick · checked August 2026ADTortoise Substrate (Topsoil-Sand Mix)Lets tortoises scrape and dig naturally — safer than wood chips or calci-sand if accidentally ingested.Available at Amazon →

Avoid calci-sand, wood chips and bark, which can cause gut blockages if swallowed. Keep overall humidity low for these dry-climate species, but offer a slightly damp hide and regular shallow baths — three or four times a week for hatchlings — to keep youngsters hydrated and help smooth shell growth.

What Tortoises Eat in the UK

Getting the diet right is the second most common stumbling block after housing. Mediterranean tortoises are strict herbivores that evolved to eat tough, fibrous, low-protein plants. Feeding them the wrong things — especially fruit, salad-bar staples and anything high in protein — is a direct cause of shell deformities and serious health problems.

Feed plenty of

• Wild weeds (the staple): dandelion, plantain, clover, sow thistle, hawkbit, bramble leaves
• Leafy greens: watercress, rocket, kale, spring greens, lamb's lettuce
• Edible flowers: dandelion flowers, hibiscus, nasturtium

Feed rarely or avoid

• Fruit: too sugary — at most an occasional tiny treat, ideally none
• Spinach, beetroot and rhubarb leaves: lock up calcium; feed sparingly or not at all
• Never feed: meat, dog or cat food, bread, dairy, or pellet "tortoise mixes" as a staple

The Tortoise Table plant database is the gold-standard UK reference for checking whether any garden plant is safe before you feed it.

Supplements

Dust food with a calcium powder two or three times a week, and leave a cuttlefish bone in the enclosure for the tortoise to nibble. These are vital for shell and bone health, especially in growing youngsters.

Illustrative imageOur pick · checked August 2026ADCalcium Powder SupplementDust food 2-3 times a week — critical for shell growth and preventing metabolic bone disease in growing tortoises.Available at Amazon →

Illustrative imageOur pick · checked August 2026ADCuttlefish BoneLeave one in the enclosure permanently — tortoises self-regulate their calcium intake by nibbling it freely.Available at Amazon →

Outdoor Time & the UK Climate

On warm, dry days from late spring through summer, nothing beats natural sunshine — it gives your tortoise real UVB and the chance to graze and explore. A secure outdoor enclosure is one of the best things you can provide a UK tortoise.

Make it genuinely escape-proof: tortoises are stronger and more determined than they look, and Horsfields in particular will dig and tunnel out of an ordinary garden in an afternoon. Use solid, sunken walls, provide shade and a hide, and never leave a tortoise out overnight or in cold, wet weather. Always supervise against predators such as foxes, cats and even large birds, which can injure a tortoise.

Because the British summer is unreliable, your indoor tortoise table with its lamp remains the year-round home, with garden time as a brilliant supplement whenever the weather allows.

Hibernation Basics

Healthy adult Hermann's and Horsfield tortoises hibernate over winter, which is a natural and important part of their biology. But hibernation should only ever be attempted with a healthy, correctly weighed tortoise, using a safe controlled method — getting it wrong can be fatal.

This is a big enough topic to deserve its own deep dive: read our dedicated UK tortoise hibernation guide for the safe fridge method, pre-hibernation health checks and weight monitoring before you attempt it. If you are at all unsure, do not hibernate — a tortoise can safely be kept "awake" and warm through winter instead. When in doubt, find an exotic vet near you for a pre-hibernation health check.

Common Health Problems

Most tortoise illnesses are slow to show and rooted in husbandry, so the best medicine is the correct setup described above. Watch for these common problems:

• Metabolic bone disease (MBD): soft or deformed shell from too little UVB or calcium — the most preventable and most common serious problem. Learn the warning signs in our reptile metabolic bone disease guide.
• Shell pyramiding: raised, bumpy scutes, usually caused by too much protein, too little fibre, or low humidity in growing tortoises.
• Respiratory infections: runny nose, bubbling, open-mouth breathing — often linked to enclosures that are too cold or too damp.
• Beak and nail overgrowth: from a diet lacking abrasive fibre.
• Parasites and "post-hibernation anorexia": refusing food after winter needs prompt veterinary attention.

Tortoises are masters at hiding illness, so a tortoise that stops eating, looks lethargic, or has a swollen, sunken or weeping eye needs a vet who knows reptiles — not all general practices do. Use our reptile vet finder to locate a specialist, and for sudden collapse, severe bleeding or breathing distress, go straight to our emergency veterinary contacts. The Merck Veterinary Manual chelonian section and the RSPCA reptile welfare advice are reliable places to read more.

UK Costs Breakdown

A tortoise is cheap to feed but the initial setup is where the real money goes — and cutting corners on lighting is a false economy that ends in vet bills.

Budget separately for veterinary care. A routine exotic consult typically runs £40-£80, and a worm count, post-hibernation check or treatment for illness costs more. It is worth knowing your nearest reptile-savvy practice before you need it — find an exotic vet near you and save the details somewhere handy.

Frequently Asked Questions

Ready to start? Get the lighting and the tortoise table right first, learn the weed-based diet, and you will have a wonderful companion for decades. If your tortoise ever stops eating, looks lethargic or struggles to breathe, find an RCVS-registered exotic vet without delay. For sudden emergencies, use our emergency veterinary contacts.

More guides: Tortoise Hibernation UK Guide · Best First Exotic Pet for Beginners · UK Exotic Pet Legal Guide