Reptoria

Mexican hognose snake (Heterodon kennerlyi)

Mexican hognose snake (Heterodon kennerlyi) in a terrarium

Snakes · Difficulty: Beginner

Key facts and care guidance for Mexican hognose snake (Heterodon kennerlyi) (origin: Southern Texas, northern Mexico). Adult size around 40–60 cm. Life expectancy 12–18 years. The values below are carefully researched guidance.

Short answers

Mexican hognose snake: How big does the enclosure need to be?

80×40×40 cm.

Mexican hognose snake: What temperature does it need?

Daytime 24–30 °C, basking spot 32 °C, at night 18–22 °C.

Mexican hognose snake: Does it need UVB lighting?

UVB: Not required.

Mexican hognose snake: How long do they live?

Life expectancy: 12–18 years.

Mexican hognose snake: Is it suitable for beginners?

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

Climate

Daytime temperature
24–30 °C
Night temperature
18–22 °C
Basking spot
32 °C
Humidity
40–55 %
UVB
Not required

Enclosure

Minimum size
80×40×40 cm
Substrate
Sand-loam 8–12 cm for digging, a cork hide, a water dish

Feeding

Food
Frozen-thawed mice of a suitable size
Feeding interval
1×/week

Key facts

Adult size
40–60 cm
Life expectancy
12–18 years
Origin
Southern Texas, northern Mexico
Protection status
Not listed under CITES; despite its rear fangs, practically harmless to people
Brumation
A winter rest of 8–12 weeks at 12–16 °C
Cohabitation
Keep them singly. Snakes are solitary and do not seek company — a shared hide is competition for the best spot, not social behaviour. The concrete reason is the feeding accident: if two animals grab the same food item, one can swallow the other along with it. On top of that, once they are kept together you can no longer tell which animal has eaten and which is losing weight. For breeding, put them together under supervision and separate them again afterwards.

Notes

Split from H. nasicus in 2014, a little smaller and lower in contrast. Like all hognoses a burrower – deep substrate matters more than climbing structure. When threatened it plays dead.

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Related species

All species in the care wiki →

What you need to start

To keep Mexican hognose snake (Heterodon kennerlyi) you typically need: a suitable enclosure (80×40×40 cm), substrate (Sand-loam 8–12 cm for digging, a cork hide, a water dish), a heat source with a thermostat, 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/Eastern_hognose_snake, https://hiphogs.com/hognose-basic-care, https://reptifiles.com/wp-content/uploads/2020/11/Eastern-Hognose-Snake-Care-Sheet-PDF-1.pdf, https://reptile-database.reptarium.cz/species?genus=Heterodon&species=kennerlyi

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).