Corn Snake

Corn snakes are small to medium sized snakes from North America. They can live for up to 20 years and grow up to 1 1⁄2 metres in length.

It is important to keep records of feeding and shedding dates, passing of urates and faeces, weights and any veterinary care.

Suitability as Pets

Generally an easy to maintain non-aggressive snake suitable for a novice keeper. A relatively simple entry level Squamate suitable for most informed reptile keepers.

Keep records of feeding and shedding dates, passing of urates and faeces, weights and any veterinary care.

Sexing & Reproduction

Corn snakes become sexually mature at around 70cm in length and 100g in weight.

Start breeding them when at least 2 years old and 80cm long. Start cooling the vivarium in November or December and maintain them at 10-15 ̊C in a darkened room for 3 months. It is a good idea to hibernate your snake for this period even if you do not intend to breed from it.

Do not feed for 3 weeks prior to, or during cooling but continue to provide fresh water.

At the beginning of March gradually turn the heat back up and start feeding again. If you are intending to breed from a female, she should be fed every 3-5 days to build up her reserves for egg laying. Once the female has shed, place her in the maleʼs vivarium for mating.

A few weeks after successful mating, the female should slough. A week or two after this, she should lay up to around 20 eggs. Provide a nesting site such as a plastic box containing damp moss. Incubate the eggs in a container with a 50:50 water : vermiculite mixture at around 28 ̊C.

Juvenile care

For the first 8 months or so, juveniles can be kept in small plastic containers with ventilation holes covered by mesh in the lids. Place a third of the container only on a heat mat or strip. Kitchen paper can be used as a cheap substrate. Provide a hide box eg a cardboard tube and a shallow water dish.


Corn snakes require a warm, secure vivarium with the correct temperature gradient and places to hide. It is essential that vivarium temperature and humidity are monitored to ensure that thesnake is living in the correct environment for the species. Ideally thermometers should be placed at each end of the vivarium.

A vivarium 100cm long x 40cm high x 40cm wide is suitable for an adult corn snake.

Faecal material should be removed as soon as possible and the entire vivarium cleaned and disinfected every 2-3 months.


No special lighting is generally required (although may be beneficial) and a 12 hour day/night photoperiod is suitable.

Heating/ Temperature

The vivarium temperature should be 25-30 ̊C (75-85°F) during the day, with a night-time drop of a few degrees. There should be a temperature gradient from one end of the enclosure to the other, enabling the snake to regulate its own temperature by moving around. This is easily achieved by placing a heat mat or tape under or against the side of the vivarium at one end. Alternatively ceramic bulbs, spot lights or power plates can be used, although it is essential that heaters inside the vivarium are guarded to prevent direct contact by the snake. Use a thermostat to control the heat system if possible. Hot rocks are not recommended.

Furniture (Climbing and shelter)

Provide a hide box or log, and a shallow water dish large enough for total immersion at the cooler end. Newspaper, Astroturf, outdoor carpeting, dust free pine shavings or peat are all suitable substrates. An object with an abrasive surface such as a piece of bark should be provided to facilitate shedding of the skin.

Water /Humidity

Humidity can range from 30-70%. In general reptiles require higher humidity when shedding.

Diet / Feeding

In the wild corn snakes eat mainly rodents but also birds, lizards and frogs. In captivity they can be easily maintained on a diet of defrosted mice and weaner rats. In general they should be fed every 5-7 days, with younger snakes being fed more frequently than older ones. Start feeding hatchlings with pinkies after their first shed and feed every 2-5 days. Most corn snakes are good feeders.

If snakes are kept in pairs or groups, they should be separated for feeding. Reluctant feeders can be encouraged by wiggling the mouse with a pair of forceps, warming it or by washing the mouse and scenting it by rubbing against a chick, a shed lizard skin, or by placing it in a small cardboard box recently vacated by a live rodent.

Your snake may not eat if the environmental conditions are unsuitable, if it is about to shed, or if it is stressed (for example by excessive handling or lack of a hiding place). Females may not eat when gravid. Fresh water should be provided at least every 2 days.

Food Dusting/ Vitamin Supplementation

Generally not required

Source Holly House Veterinary Hospital