Rosy Boa

Lichanura Trivirgata

Other species covered by this caresheet: (Brazilian Boa, Marajo Rainbow Boa, Espirito Santo Rainbow Boa…)

Family: Boidae
Subfamily: Boinae

The Rosy boa makes an excellent pet. One of only 2 species of boa found in the USA, the rosy boa is a small ground dwelling snake, ranging from around 24 to 40 inches in length. The combination of small size, and docile nature makes them an excellent choice for the first time snake keeper. While primarily terrestrial they will occassionally climb, especially as juveniles. They are normally very tolerant to handling, and rarely bite, preffering to coil into a ball if they feel threatened.

Growth and longevity

Adult rosy boas can range from around 2 to 4 feet in length, but rarely exceed 42 inches. Adult weight is around 120 – 125g. In captivity a rosy boa can live up to 20 years.


Small mice of a suitable size should be offered weekly for adults. Neonates will require feeding every few days, starting on pinkie mice. Like many boa species these are prone to obesity in captivity so care should be taken not to overfeed.


As one of the smallest boa species, and due to their terrestrial nature, the rosy is one of the only boas suitable for housing in an aquarium. a 20 gallon aquarium, which must be fitted with an escape proof lid*, and with good ventilation, will suffice for an adult rosy. Undertank heating is best, and good hiding places are essential. Clean fresh water should always be provided, but care should be taken that the humidity isn’t allowed to rise to high. A temperature gradient with a daytime high of around 82F (28C) is best, with a drop of a few degrees at night.

Handling your Rosy Boa

Rosies are usually very tolerant to handling. No special requirements other than the usual care and patience when handling snakes. They rarely bite, and due to their small size pose no danger. They are excellent escape artists through so never take your eyes off them when they are out of their enclosure!

Breeding, and health issues.

The rosy boacan be bred in captivity, and captive bred specimens are readily availble. Like all boas they bear live young, with litter sizes of up to 10. Breeding and health issues are beyond the scope of this caresheet. Please check the other sections of this web site.

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