Reptile · Colubrid
Bull snake care guide
Pituophis catenifer sayi
The bull snake is a intermediate-level colubrid from Great Plains of North America. Adults reach 120–200 cm and live 15–25 years in captivity. Large, active and a keen burrower; provide deep substrate and a long enclosure. Solitary.
- Enclosure 180 × 60 × 60 cm
- Temp Warm 29–32°C, cool 22–24°C
- Humidity 30–50%
How much does a bull snake cost in Canada?
Bull snake quick facts
- Skill level
- Intermediate
- Adult size
- 120–200 cm
- Lifespan
- 15–25 years
- Activity
- Diurnal
- Native range
- Great Plains of North America
- Minimum enclosure
- 180 × 60 × 60 cm (71 × 24 × 24 in, ≈ 171 US gal)
- Housing
- Best kept alone.
- Temperature
- Warm 29–32°C, cool 22–24°C
- Humidity
- 30–50%
- UVB
- Recommended
- Diet
- Carnivore – frozen/thawed mice and rats
- Bioactive style
- Temperate forest
Bull snake enclosure & bioactive setup
Give one adult at least 180 × 60 × 60 cm (71 × 24 × 24 inches). Best kept alone. This species suits a temperate forest bioactive build.
- Leaf litter2 cm
- Jurassic ABG Terrarium Mix12 cm
Keep a moisture gradient: drier on top and at the warm end, slightly moist underneath and at the cool end.
Temperature: Warm 29–32°C, cool 22–24°C. Humidity: 30–50%. UVB: Recommended.
What does a bull snake eat?
Carnivore – frozen/thawed mice and rats. Feed one appropriately sized thawed rodent every 10–14 days; juveniles every 7 days.
Handling, temperament & health
Puffs, hisses and tail-rattles when startled but often calms down with handling.
Health watch: Watch for respiratory infections, obesity and stuck sheds.
Cleaning & maintenance schedule
Daily
- Check temperatures and refresh water.
Weekly
- Lightly moisten the cool end and lower soil.
- Spot-clean waste.
Monthly
- Top up leaf litter; check hides and branches are stable.
Yearly
- Partially refresh soil in high-traffic areas.
- Replace UVB bulbs (if used).
Recommended for a bull snake bioactive
Quantities are for one minimum-size enclosure (180 × 60 × 60 cm).
Jurassic ABG Terrarium Mix
Bioactive soil layer, 12 cm
Coco Husk Chips - Dried Loose Pack
Optional top layer (coco husk chips)
Red Oak Leaves 15/Pack
Leaf litter – food and cover for the clean-up crew
Cork Bark Flats
A hide in each temperature zone
Cork Branches
Many colubrids climb more than people expect
Bull snake FAQ
Is the bull snake good for beginners?
The bull snake is best for keepers with some experience (intermediate). Puffs, hisses and tail-rattles when startled but often calms down with handling.
What size enclosure does a bull snake need?
At least 180 × 60 × 60 cm (about 71 × 24 × 24 inches, roughly 171 US gallons) for one adult. Best kept alone.
How much does a bull snake cost in Canada?
Typically $100–250 CAD to buy, about $1200–2120 CAD for a complete bioactive enclosure, and $250–400 CAD a year to keep.
What temperature and humidity does a bull snake need?
Temperature: Warm 29–32°C, cool 22–24°C. Humidity: 30–50%.
What does a bull snake eat?
Carnivore – frozen/thawed mice and rats. Feed one appropriately sized thawed rodent every 10–14 days; juveniles every 7 days.
Similar species
This care sheet is general guidance from One Bioactive, not veterinary advice. Needs vary with age, locality and individual animals – confirm with your breeder and an exotics vet. Prices are typical Canadian ranges in CAD and change over time.