Species profile · Colubridae

Western Hognose

Complete care sheet and morph genetics registry for the western hognose — husbandry parameters, diet, breeding and pairing calculator.

Heterodon nasicusHognose de l'OuestPlains hognoseHognose
Adult size
35–90 cm
Lifespan
10–18 yrs
Difficulty
Beginner +
Temperament
Diurnal
Activity
Diurnal
Reproduction
Oviparous
01

Husbandry requirements

Western Hognose — origin: Central North America — prairies.

Terrarium temperature gradient

Night min20 °C
Cool side22–24 °C
Warm side28–30 °C
Basking spot30–32 °C
Enclosure (adult)
90 × 45 × 30 cm

Terrarium with a deep substrate

Loose, deep substrate for burrowing

Humidity
30–50 %
Substrate
AspenCoco fibreSoil/sand mix
UVB
Recommended

Low UVB beneficial (diurnal species)

Water source
Always available

A water bowl at all times

Origin
Colubridae

Central North America — prairies

02

Feeding & health

Diet

Carnivore — rodents in captivity — Mice of appropriate size (amphibian prey in the wild)

Prone to obesity — do not overfeed; sometimes a difficult starter (scenting)

Breeding
Oviparous

Clutch 4–20 eggs/young. Incubation ~55 days

Health watch points
  • Obesity (very common)
  • Respiratory infections
  • Incomplete shed
  • Food refusal
03

Morphs & genetics

Registry of 30 documented genes and 64 named combos for Western Hognose.

  • Microscale microInc.d
  • TigerDom
  • Masque maskDom
  • ShurikenDom
  • SmokeRec
  • JaguarDom
  • GraniteRec
  • Leucistic lucyRec
  • Anaconda condaInc.d
  • Arctic jmg arcticInc.d
  • Albino amelRec
  • Axanthic aneryRec
  • Toffee Belly toffeeRec
  • Evans Hypo evansRec
  • LavenderRec
  • PistachioRec
  • Pink Pastel pinkRec
  • SableRec
  • Swiss Chocolate swiss chocRec
  • MochaRec
  • Lemon GhostRec
  • Caramel caramel albinoRec
  • Ghost (Hypo) green ghostRec
  • ShadowDom
  • RBE Pastel rbeDom
  • JungleDom
  • Twin Spot twinspotInc.d
  • Red (Line) extreme redDom
  • Purple (Line) purple phaseDom
  • Green (Line) green phaseDom
Named combos — 64 documented combined morphs
SnowToxicToxic (Evans)HypnosPink Panther AxanthicAxanthic SableAshShadow AxanthicJigsawCasperWraithCotton CandyMoonstoneAlbino ArcticAxanthic ArcticToffee ArcticLavender ArcticSubzeroArctic CondaPink Pastel ArcticYetiToffee YetiSuper Arctic AxanthicLavender YetiSuper Arctic SableSuper Arctic CondaSuper Arctic SupercondaAlbino CondaToffee CondaAxanthic CondaVanda (Lavender Conda)Sable CondaPink Pastel CondaShadow CondaSnow CondaToxic CondaYeti CondaSunburst CondaJigsaw CondaCasper CondaSuperconda AlbinoSuperconda ToffeePanda (Superconda Axanthic)Superconda LavenderSuperconda SableSuperconda SnowSuperconda ToxicSuperconda YetiSunburstPink PantherCoralRed Albino (Extreme Red)Purple AlbinoToffee SableLavender SableTiger CondaJaguar CondaMicroscale CondaTwin Spot AlbinoTwin Spot AxanthicExorcistSnow SableSnow CondaToxic Conda
04

Pairing calculator

Pick each parent's genotype — clutch probabilities update live. Free, no sign-up.

🧬

Western Hognose × Western Hognose

Probabilities per gene (independent loci).

GeneParent AParent B
Expected clutchSelect at least one gene on a parent.
05

Frequently asked questions

Answers to the most common questions about keeping the western hognose.

How big does an adult Western Hognose get?
An adult Western Hognose typically measures 35–90 cm (strong dimorphism: females 50–90 cm, males 35–50 cm).
What temperature and humidity does a Western Hognose need?
A gradient of roughly 22–24 °C on the cool side to 28–30 °C on the warm side, with a basking spot of 30–32 °C. Humidity 30–50 %.
What does a Western Hognose eat?
Carnivore — rodents in captivity: Mice of appropriate size (amphibian prey in the wild).
Is the Western Hognose a good reptile for beginners?
Beginner + level. Harmless bluffer (mimics a cobra, plays dead); mildly venomous rear-fanged snake, harmless to humans Plan ahead: a lifespan of 10–18 yrs.

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