What is an Iguana like?
The Green Iguana is the species most people think of when talking about pet iguanas. Native to Central and South America, they are arboreal lizards that spend much of their time climbing, basking and feeding on plant matter.
In the UK they appeal to owners who want a large reptile with visible personality and strong daily routines. They can become familiar with their keeper, but they are powerful animals and not a simple beginner pet.
Iguana temperament
Iguanas vary widely in temperament. Some become calm with patient handling, while others remain defensive or territorial, especially during breeding seasons. They are generally best suited to experienced reptile keepers because adults can be strong, fast and capable of scratching, biting or tail-whipping when stressed.
Iguana care needs
- Provide a very large enclosure with climbing branches, basking shelves and secure access points.
- Use strong UVB lighting and correct basking temperatures every day.
- Feed a plant-based diet focused on leafy greens, vegetables and suitable flowers.
- Maintain appropriate humidity while keeping the enclosure well ventilated.
- Handle regularly but carefully to build trust without creating stress.
- Plan for adult size from the beginning, as iguanas quickly outgrow small setups.
Iguana size and lifespan
Adult iguanas can reach around 4 to 6 feet long including the tail, with males often larger and heavier than females. They are far bigger than many new owners expect. With excellent husbandry they may live 15 to 25 years, so buying an iguana is a long commitment rather than a short-term exotic pet choice.
Housing and environment
Iguanas need very large custom enclosures, often closer to a room-sized setup than a standard vivarium. They require height as well as length because climbing is a natural behaviour. Strong UVB lighting, large basking areas and secure branches are essential. Humidity should be moderate to high depending on the setup, with good ventilation to reduce respiratory and skin issues. Substrate should be safe, easy to clean and unlikely to be swallowed accidentally.
Diet and nutrition
Iguanas are mainly herbivores and need a carefully balanced plant-based diet. Leafy greens such as spring greens, dandelion leaves and other suitable vegetables are usually more appropriate than fruit-heavy diets. Animal protein should be avoided because it can contribute to serious health problems. Calcium balance is important, especially when combined with correct UVB lighting.
Handling and socialisation
Iguanas need calm, consistent handling from an owner who understands reptile behaviour. Young iguanas may whip their tails, run or scratch when frightened. Adults can cause injury if mishandled, so confidence and respect are important. They are not usually suitable for young children, and even tame iguanas should be handled with care.
Is an Iguana right for me?
An Iguana is best suited to experienced reptile owners with enough space, money and time for a large long-lived lizard. Setup costs can be high because adult enclosures, lighting, heating and humidity control are significant commitments. They also need access to an exotic vet with reptile experience. Iguanas can be rewarding, but they are not low-maintenance pets. Specialist reptile insurance is a policy detail some owners compare given the potential cost of exotic veterinary treatment for a large reptile.
For more context before comparing specialist cover, read the jargon buster on vet fee limits and our guide to what pet insurance covers.