Bogert's tree monitor (Varanus prasinus bogerti)
Monitors & tegus · Difficulty: Expert
Key facts and care guidance for Bogert's tree monitor (Varanus prasinus bogerti) (origin: South-eastern New Guinea). Adult size around 75–95 cm. Life expectancy 10–15 years. The values below are carefully researched guidance.
Short answers
Bogert's tree monitor: How big does the enclosure need to be?
150×80×180 cm for a pair — with these species height matters more than floor area.
Bogert's tree monitor: What temperature does it need?
Daytime 27–32 °C, basking spot Basking spot 40–45 °C, at night 22–25 °C.
Bogert's tree monitor: Does it need UVB lighting?
UVB: Essential (UVB 10.0).
Bogert's tree monitor: How long do they live?
Life expectancy: 10–15 years.
Bogert's tree monitor: Is it suitable for beginners?
No – better suited to experienced keepers (difficulty: Expert).
Climate
- Daytime temperature
- 27–32 °C
- Night temperature
- 22–25 °C
- Basking spot
- Basking spot 40–45 °C
- Humidity
- 70–90 %
- UVB
- Essential (UVB 10.0)
Enclosure
- Minimum size
- 150×80×180 cm for a pair — with these species height matters more than floor area
- Substrate
- Forest-floor substrate with sturdy climbing branches, cork tubes and bromeliads
Feeding
- Food
- Insects of all kinds, plus nestlings and the occasional egg; regularly with calcium and vitamins
- Feeding interval
- adults 3×/week
Key facts
- Adult size
- 75–95 cm
- Life expectancy
- 10–15 years
- Origin
- South-eastern New Guinea
- Protection status
- CITES II — proof of origin required
- Brumation
- No winter rest; somewhat cooler and drier in winter
- Cohabitation
- Pairs work, but keep males strictly separate. The reason: several males fight over territory and basking spot until one is injured or sits permanently in a corner. Females usually tolerate each other but need separate heat and hiding spots each; feed separately if sizes differ.
Notes
A dark form of the prasinus group from the D'Entrecasteaux Islands.
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Related species
- Argus monitor (Varanus panoptes) – Expert
- Bengal monitor (Varanus bengalensis) – Expert
- Blue tree monitor (Varanus macraei) – Expert
- Blue-tailed monitor (Varanus doreanus) – Intermediate to expert
- Finsch's monitor (Varanus doreanus finschi) – Expert
- Boatsi tree monitor (Varanus boatsi) – Expert
- Bogert's tree monitor (Varanus bogerti) – Expert
- Lace monitor (Varanus varius) – Expert
What you need to start
To keep Bogert's tree monitor (Varanus prasinus bogerti) you typically need: a suitable enclosure (150×80×180 cm for a pair — with these species height matters more than floor area), substrate (Forest-floor substrate with sturdy climbing branches, cork tubes and bromeliads), 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: 25 September 2026 · Editor: Reptoria editorial team · Sources include: https://en.wikipedia.org/wiki/Bogert%27s_monitor, https://reptile-database.reptarium.cz/species?genus=Varanus&species=bogerti
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).