Western Hognose Snake (Heterodon nasicus) Care Sheet
The Western Hognose Snake is a small, heavily built North American colubrid known for its upturned snout, dramatic defensive displays and strong burrowing behaviour.
They are popular in captivity because of their manageable size, unusual appearance and wide range of captive-bred morphs. However, they are highly specialised fossorial snakes and benefit from deeper substrate, secure hides and opportunities to dig rather than being kept in sparse enclosures.
QUICK REFERENCE
Scientific Name: Heterodon nasicus
Common Names: Western Hognose Snake, Plains Hognose Snake
Family: Colubridae
Origin: Central North America
Adult Size: Males commonly 35–50 cm; females commonly 50–90 cm, occasionally larger
Lifespan: Commonly 12–18+ years with appropriate care
Activity: Primarily diurnal to crepuscular
Lifestyle: Terrestrial and strongly fossorial
Diet: Carnivorous
Care Level: Beginner to Intermediate
NATURAL HISTORY
Western Hognose Snakes occur across grasslands, prairies, sandy plains and semi-arid habitats of central North America.
They are highly adapted for digging.
The distinctive upturned snout is used to push through loose soil and substrate while searching for:
- Toads
- Frogs
- Small reptiles
- Rodents
- Eggs
- Other small prey
They spend a considerable amount of time beneath the surface and should therefore be provided with deep, diggable substrate in captivity.
Wild animals experience significant seasonal variation in temperature and activity.
ENCLOSURE
For a single adult, an enclosure around:
90 × 45 × 45 cm (36 × 18 × 18 in)
provides a good general minimum for many females.
Smaller adult males may be maintained successfully in somewhat smaller enclosures, but larger accommodation is encouraged where practical.
The enclosure should be:
- Secure
- Escape-proof
- Well ventilated
- Deep enough for substantial substrate
- Large enough to create a clear thermal gradient
Hognose snakes are surprisingly strong and adept at exploiting small gaps, so doors, vents and cable openings should be carefully checked.
HATCHLINGS & JUVENILES
Young hognose snakes can be maintained in appropriately sized secure enclosures.
Larger juvenile enclosures can also work well when they contain abundant:
- Cover
- Small hides
- Deep substrate
- Visual barriers
A large enclosure is not inherently stressful if the animal can remain concealed and secure.
The enclosure should be upgraded as the snake grows.
SUBSTRATE
A deep, diggable substrate is one of the most important aspects of hognose husbandry.
Suitable options include:
- Aspen
- Naturalistic soil-based mixtures
- Soil/sand mixtures
- Commercial arid reptile substrates suitable for burrowing
Provide enough depth for the snake to fully bury itself.
For most adults, approximately:
10–15 cm (4–6 in)
is a useful starting point, with deeper areas encouraged.
Avoid
Avoid:
- Calcium sand
- Crushed walnut shell
- Cedar
- Aromatic pine shavings
- Sharp gravel
- Highly dusty substrates
Paper towel can be useful temporarily during quarantine or veterinary monitoring but does not allow normal burrowing behaviour.
HIDES
Even though Western Hognose Snakes frequently hide beneath substrate, dedicated hides should still be provided.
At minimum provide:
- Warm-side hide
- Cool-side hide
Additional cover can include:
- Cork bark
- Low rock-style hides
- Leaf litter
- Artificial plants
A humid hide can be offered during shedding if needed.
The snake should not have to choose between feeling secure and maintaining an appropriate body temperature.
HEATING & TEMPERATURE
Western Hognose Snakes require a thermal gradient.
Basking/Warm Area
Aim for approximately:
30–32°C (86–90°F)
at the warm surface.
Cool End
Approximately:
21–25°C (70–77°F)
The enclosure should not be maintained at one uniform temperature.
Night
A natural nighttime reduction is acceptable.
Temperatures around:
18–22°C (64–72°F)
are generally suitable for healthy adults.
If room temperatures fall substantially below this, thermostatically controlled non-light-emitting supplementary heating may be necessary.
HEAT SOURCES
Overhead heating can be used to create a natural daytime warming zone.
Suitable options include:
- Halogen basking lamp
- Appropriate incandescent basking lamp
Where supplementary or nighttime heating is required, a:
- Deep Heat Projector
- Ceramic Heat Emitter
may be used.
All heating equipment capable of overheating the enclosure must be controlled by an appropriate thermostat.
Heat sources should be securely installed and protected from direct contact.
Use digital thermometers to monitor actual enclosure temperatures independently of the thermostat.
UVB & LIGHTING
Western Hognose Snakes can benefit from access to low-level UVB.
A suitable linear low-output UVB system can be provided over part of the enclosure.
Aim for approximately:
UVI 1.0–2.0 in the exposed basking area
with a gradient towards:
UVI 0 in full shade
The animal should always be able to completely avoid UV exposure.
The correct lamp depends on:
- Lamp type
- Reflector
- Distance
- Mesh obstruction
- Enclosure height
A suitable UV meter provides the most reliable method of measuring actual exposure.
Provide approximately:
12 hours light / 12 hours darkness
with seasonal variation acceptable.
All visible lighting should be switched off overnight.
HUMIDITY
Western Hognose Snakes generally do well at moderate to relatively low humidity.
A useful general range is approximately:
30–50% relative humidity
with natural fluctuations acceptable.
A slightly more humid retreat can be provided during shedding.
The entire enclosure should not be kept persistently damp.
Good ventilation is important.
WATER
Fresh drinking water should always be available.
Provide a stable shallow water dish large enough for easy access.
The dish should be:
- Clean
- Freshly filled
- Difficult to overturn
Routine soaking is unnecessary.
Persistent soaking may indicate an environmental or health problem and should be investigated.
DIET
Western Hognose Snakes are carnivorous.
Wild animals consume a varied diet, with amphibians forming an important component in many populations.
Captive-bred Western Hognose Snakes can generally be maintained successfully on appropriately sized rodents.
Suitable prey includes:
- Mice
- Appropriately sized other captive-bred prey where necessary
Frozen-thawed prey is strongly preferred.
Live rodents can seriously injure snakes and are unnecessary when frozen-thawed prey is accepted.
PREY SIZE
Select prey according to the size and body condition of the individual.
A meal producing a modest temporary swelling is generally appropriate.
Avoid excessively large meals.
The commonly used guideline of prey approximately equal to the widest part of the snake can be useful, but individual body condition should always be considered.
FEEDING FREQUENCY
Feeding frequency varies according to:
- Age
- Size
- Sex
- Growth
- Prey size
- Body condition
- Reproductive status
As a broad guide:
Hatchlings: Approximately every 4–5 days
Juveniles: Approximately every 5–7 days
Adults: Commonly every 7–14 days
Large adult females may require different meal sizes and intervals from small adult males.
These are guidelines rather than rigid rules.
Monitor body condition and adjust feeding accordingly.
FEEDING INSIDE THE ENCLOSURE
Western Hognose Snakes can be fed safely inside their normal enclosure.
There is no requirement to move the snake into a separate feeding container.
Using feeding tongs helps keep hands away from the feeding response and allows prey to be presented naturally.
Avoid handling for approximately:
24–48 hours after feeding
to minimise unnecessary disturbance and reduce the risk of regurgitation.
FEEDING REFUSAL
Western Hognose Snakes are well known for occasionally refusing food.
This is particularly common in:
- Young males
- Breeding-season adults
- Animals experiencing seasonal changes
- Newly acquired snakes
A missed meal does not automatically indicate illness.
However, persistent refusal accompanied by:
- Weight loss
- Lethargy
- Abnormal breathing
- Regurgitation
- Other clinical signs
should be investigated.
Always check husbandry and body weight before trying increasingly unusual food items.
DEFENSIVE BEHAVIOUR
Western Hognose Snakes are famous for dramatic defensive displays.
A frightened animal may:
- Flatten its neck
- Hiss loudly
- Strike with a closed mouth
- Bluff repeatedly
- Musk
- Roll onto its back
- Feign death
The characteristic “cobra-like” neck flattening can appear intimidating but is normally defensive rather than aggressive.
Many strikes are bluffs made without actually opening the mouth.
A defensive snake should be given space rather than repeatedly provoked.
REAR-FANGED TOXICITY
Western Hognose Snakes possess enlarged rear teeth and produce saliva containing compounds that assist in subduing prey.
They are not considered dangerously venomous to humans in the same way as medically significant venomous snakes.
However, prolonged bites can occasionally cause local reactions such as:
- Swelling
- Redness
- Pain
- Itching
Individual sensitivity varies.
Because envenomation is more likely during prolonged chewing, any bite should be handled calmly.
Do not allow the snake to remain attached and chew unnecessarily.
If bitten, wash the area thoroughly and seek medical advice if significant swelling, pain, allergic-type symptoms or other concerning signs develop.
HANDLING
Many captive Western Hognose Snakes tolerate calm, gentle handling well.
Allow newly acquired animals time to settle before beginning regular handling.
When handling:
- Approach calmly
- Scoop the snake up from underneath
- Support the body
- Avoid tightly restraining it
- Keep sessions relatively short
Avoid handling:
- Immediately after feeding
- During obvious stress
- During heavy shedding where unnecessary
Frequent forced handling of a defensive animal can increase stress rather than “tame” it.
SHEDDING
Before shedding, the snake’s colours may become dull and the eyes may turn cloudy.
A healthy animal should usually shed in one largely complete piece.
During shedding:
- Ensure fresh water remains available
- Check humidity
- Offer a humid hide if needed
- Avoid unnecessary disturbance
After shedding, check that the eye caps and tail tip have shed successfully.
Repeated incomplete sheds may indicate problems with hydration, humidity or general health.
SOCIAL HOUSING
Western Hognose Snakes should be housed individually.
They do not require another snake for companionship.
Cohabitation can result in:
- Stress
- Competition
- Feeding problems
- Injury
- Accidental breeding
- Difficulty monitoring health
Individual housing allows much more accurate monitoring of feeding, faeces, weight and behaviour.
Temporary pairing for controlled breeding is a separate specialist practice.
SEXING
Western Hognose Snakes show noticeable sexual dimorphism.
Adult males are generally:
- Smaller
- More slender
- Longer-tailed relative to body size
Adult females are generally:
- Larger
- More heavily built
- Shorter-tailed proportionally
Specialist methods such as probing or popping may also be used by experienced keepers.
These techniques should not be attempted without appropriate experience because incorrect technique can cause serious injury.
BRUMATION
Wild Western Hognose Snakes experience seasonal cooling.
Captive pets do not require deliberate brumation for routine maintenance.
Controlled cooling may be used by experienced breeders as part of a planned breeding programme.
An animal that unexpectedly becomes inactive or stops feeding should not simply be assumed to be brumating.
Check:
- Temperature
- Weight
- Hydration
- General health
- Overall husbandry
and seek veterinary advice when appropriate.
CLEANING & HYGIENE
Remove faeces, urates and contaminated substrate promptly.
Water dishes should be cleaned regularly.
Naturalistic and bioactive enclosures still require routine observation and maintenance.
Always wash your hands thoroughly after:
- Handling the snake
- Cleaning waste
- Handling prey
- Cleaning enclosure equipment
Reptiles can carry Salmonella without appearing ill.
HEALTH
Potential warning signs include:
- Persistent refusal to feed accompanied by weight loss
- Regurgitation
- Wheezing
- Open-mouth breathing
- Nasal or oral discharge
- Repeated incomplete shedding
- Skin lesions
- Swelling
- Abnormal faeces
- Difficulty moving
- Neurological abnormalities
- Significant behavioural changes
- Persistent soaking
Occasional food refusal in an otherwise healthy snake maintaining normal body condition is not automatically abnormal.
New reptiles should ideally undergo an appropriate quarantine period before introduction to an established collection.
If illness is suspected, consult a suitably experienced reptile or exotic veterinarian.
LONG-TERM CONSIDERATIONS
Western Hognose Snakes can live for well over a decade.
Before acquiring one, consider the continuing cost of:
- Adult enclosure
- Heating
- Thermostatic control
- Lighting and UVB
- Deep substrate
- Frozen prey
- Veterinary treatment
Potential keepers should also be comfortable with:
- Burrowing behaviour
- Seasonal feeding changes
- Dramatic defensive displays
- Their rear-fanged anatomy and potential for local bite reactions
A properly maintained Western Hognose is an active, highly specialised snake whose natural digging and defensive behaviours make it particularly interesting to observe.
IMPORTANT INFORMATION
This care sheet provides general husbandry guidance and does not replace species-specific research or veterinary advice. Individual requirements may vary.
Western Hognose Snakes possess enlarged rear teeth and biologically active saliva. Bites are generally not considered medically significant, but local reactions can occur and appropriate medical advice should be sought if concerning symptoms develop.
If you have concerns about an animal’s health or care, consult a suitably experienced exotic or reptile veterinarian.
Information correct at the date of publication.
ReptileCommunity.com | Revised: August 2026