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Rosy boa (Lichanura trivirgata)

Rosy boa (Lichanura trivirgata), typical appearance of the species

Snakes · Difficulty: Beginner

Key facts and care guidance for Rosy boa (Lichanura trivirgata) (origin: The south-west of the USA, Baja California and north-western Mexico (deserts and semi-deserts)). Adult size around 60–90 cm (a small, powerful constrictor). Life expectancy 18–25+ years (record ~30). The values below are carefully researched guidance.

Short answers

Rosy boa: How big does the enclosure need to be?

From 120×50×70 cm (minimum size according to the 1997 expert report, rosy boas); ground-dwelling.

Rosy boa: What temperature does it need?

Daytime 28–32 °C, basking spot 32 °C, at night 20–22 °C.

Rosy boa: Does it need UVB lighting?

UVB: UVB not essential, weak UVB (Ferguson zone 1–2) recommended.

Rosy boa: How long do they live?

Life expectancy: 18–25+ years (record ~30).

Rosy boa: Is it suitable for beginners?

Yes – it is considered suitable for beginners (difficulty: Beginner).

Climate

Daytime temperature
28–32 °C
Night temperature
20–22 °C
Basking spot
32 °C
Humidity
40–60 % (dry, desert species)
UVB
UVB not essential, weak UVB (Ferguson zone 1–2) recommended

Enclosure

Minimum size
from 120×50×70 cm (minimum size according to the 1997 expert report, rosy boas); ground-dwelling
Substrate
A sand and soil mix (dry), hides of cork bark and stones

Feeding

Food
Frozen mice of a suitable size
Feeding interval
adults every 7–14 days (do not overfeed), juveniles weekly

Key facts

Adult size
60–90 cm (a small, powerful constrictor)
Life expectancy
18–25+ years (record ~30)
Origin
The south-west of the USA, Baja California and north-western Mexico (deserts and semi-deserts)
Protection status
Protected: CITES Appendix II, EU Annex B - proof of origin required at purchase and resale. Predominantly captive-bred - local collecting regulations apply in California (trade is mostly captive-bred).
Brumation
Recommended – a winter rest or brumation of about 2–3 months at ~10–13 °C (for health and breeding; two weeks without food beforehand to empty the gut)
Cohabitation
Keep them singly – solitary; put them together only for supervised breeding, and never keep males together

Notes

A quiet, robust beginner's boa. Important: dry conditions, avoid low floor temperatures, and do not overfeed (a tendency to obesity). "Rosenboa" is the German-language trade name for the rosy boa.

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Related species

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What you need to start

To keep Rosy boa (Lichanura trivirgata) you typically need: a suitable enclosure (from 120×50×70 cm (minimum size according to the 1997 expert report, rosy boas); ground-dwelling), substrate (A sand and soil mix (dry), hides of cork bark and stones), a heat source with a thermostat, UVB lighting, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.

The complete, interactive care database is in the Reptoria app.

Last updated: 2 November 2026 · Editor: Reptoria editorial team · Sources include: https://en.wikipedia.org/wiki/Desert_rosy_boa, https://reptile-database.reptarium.cz/species?genus=Lichanura&species=trivirgata, https://reptilesmagazine.com/rosy-boa-care-sheet/, https://www.zillarules.com/information/care-sheets/rosy-boa

All values are non-binding guidance and do not replace expert advice. Research thoroughly from several sources before acquiring and keeping an animal, and observe the applicable law (species and animal protection in particular).