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Jackson's chameleon (Trioceros jacksonii)

Jackson's chameleon (Trioceros jacksonii), typical appearance of the species

Chameleons · Difficulty: Intermediate

Key facts and care guidance for Jackson's chameleon (Trioceros jacksonii) (origin: The montane forests of Kenya and Tanzania (introduced to Hawaii)). Adult size around 25–35 cm (males with three horns). Life expectancy 5–10 years. The values below are carefully researched guidance.

Short answers

Jackson's chameleon: How big does the enclosure need to be?

80×60×100 cm (W×D×H) for 1 animal.

Jackson's chameleon: What temperature does it need?

Daytime 24–28 °C, basking spot ~28–30 °C, at night 15–18 °C.

Jackson's chameleon: Does it need UVB lighting?

UVB: Essential.

Jackson's chameleon: How long do they live?

Life expectancy: 5–10 years.

Jackson's chameleon: Is it suitable for beginners?

Rather not – it is considered an intermediate species (difficulty: Intermediate).

Climate

Daytime temperature
24–28 °C
Night temperature
15–18 °C
Basking spot
~28–30 °C
Humidity
50–60 % (day), 80–100 % (night)
UVB
Essential

Enclosure

Minimum size
80×60×100 cm (W×D×H) for 1 animal
Substrate
Coco humus or forest floor, densely planted

Feeding

Food
Insects (crickets, locusts, flies, roaches), snails
Feeding interval
Adults every 2–3 days, juveniles daily

Key facts

Adult size
25–35 cm (males with three horns)
Life expectancy
5–10 years
Origin
The montane forests of Kenya and Tanzania (introduced to Hawaii)
Protection status
CITES Appendix II / EU Annex B
Brumation
None; a slight cool spell is optional
Cohabitation
Keep singly. Jackson's chameleons are loners; males must never be kept together, females often stress each other, and even sight of another chameleon means constant stress. Pair only briefly for mating, and only if each animal has plenty of room; screen neighbouring enclosures from each other.

Notes

A cool night drop is essential; live-bearing. The males carry the characteristic three horns.

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Related species

All species in the care wiki →

What you need to start

To keep Jackson's chameleon (Trioceros jacksonii) you typically need: a suitable enclosure (80×60×100 cm (W×D×H) for 1 animal), substrate (Coco humus or forest floor, densely planted), 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: 7 November 2026 · Editor: Reptoria editorial team · Sources include: A-Z Animals/Wikipedia Jackson's chameleon: ovoviviparous, Tragzeit 5-10 Monate, 8-30 Junge – https://en.wikipedia.org/wiki/Jackson's_chameleon, Snaketracks.com Jackson's Chameleon Caresheet – https://www.snaketracks.com/jacksons-chameleon/, https://chameleonforums.com/care/caresheets/jacksons, https://de.wikipedia.org/wiki/Dreihornchamäleon, https://en.wikipedia.org/wiki/Trioceros_jacksonii

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).