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The Bull-Jack is a medium cross or mixed dog, his parents are the Bulldog and the Jack Russell Terrier. He has a life span of 10 to 12 years and takes part in activities including watchdog, racing, agility and guarding. Also called a Bulldog/Jack Russell Mix he is a gentle and mellow dog, well suited to be a family dog or companion.

Here is the Bull-Jack at a Glance
Average height Medium
Average weight 30 to 45 pounds
Coat type Straight, sleek and short
Hypoallergenic? Can be (Jack Russell can be)
Grooming Needs Low to moderate
Shedding Low to moderate
Brushing Every other day
Touchiness Somewhat sensitive
Tolerant to Solitude? Moderate to good
Barking Rare
Tolerance to Heat Low to good depending on coat
Tolerance to Cold Low to very good depending on coat
Good Family Pet? Very good to excellent
Good with Children? Very good
Good with other Dogs? Good with socialization
Good with other Pets? Good with socialization
A roamer or Wanderer? Low to fairly high
A Good Apartment Dweller? Very good
Good Pet for new Owner? Good – experience would help due to training
Trainability Moderately difficult
Exercise Needs Fairly active
Tendency to get Fat Very high
Major Health Concerns Eye problems, patellar luxation, Legg-Calve-Perthes disease, Deafness,
Other Health Concerns Reverse sneezing, brachycephalic syndrome, head shakes, hip dysplasia, skin problems, tail problems,
Life Span 10 to 12 years
Average new Puppy Price Unknown
Average Annual Medical Expense $460 to $560
Average Annual Non-Medical Expense $375 to $475

Where does the Bull-Jack come from?

The Bull-Jack is one of the more recent Designer dogs to emerge from this popular trend. Over the last 3 decades or more there have been a number of mixed dogs deliberately bred. These are not all with intentions to become a purebred though some have been taken in that direction. Most have two purebred parents and it is not known for many of them where or who bred them. Some have respectable origins but some are being bred by awful breeders and puppy mills. For that reason there are some people who are against them. Make sure you are careful about who you purchase from. Since we have no other information on the Bull-Jack we look to his parents for a brief overview to get a feel for where he comes from.

The Jack Russell Terrier

In the mid 1800s the Jack Russell Terrier was developed in the South of England by Parson Russell. He wanted a working dog who could work with hounds to hunt foxes. It became popular with hunters on horseback and by the 1930s became more known in the US too. There was some argument about how the dog was to compete in shows and whether he should remain a working dog.

Now he is energetic, spirited and he packs a lot of personality into a small body! He loves life and passes that enthusiasm on to those around him. He is loving and loyal and can be quite entertaining. He has to be watched as he is quick and will chase anything. He is smart but he is willful so training can be hard. Some do not do well around other dogs even when socialized and he sees other pets as prey to chase. He is bold but that can lead to him putting himself in danger. Training has to be short and interesting.

The Bulldog

The Bulldog comes from England sometime in the 1500s where he was used in bull baiting. This was a popular spectator sport back then and they really thought that it tenderized the bull's meat. Eventually when it was outlawed people thought that would be the end of the Bulldog as all he had been bred for in terms of personality and appearance was bull baiting. However some admired this dog and decided to try and breed him to get a more docile temperament.

Today he is courageous still but also sweet, dignified but kind and oh so stubborn which means he is harder and slower to train.



The Bull-Jack is a gentle, calm, attentive and easygoing dog. He gets along with people and loves to be with his family. While he is calm he can also have a playful side and enjoys being outside. He is smart but he is also quite willful. Socialization and training are important to help him be more well rounded. He can be energetic and he is wary of strangers. Sometimes the Bull-Jack can inherit hyperactivity from the Jack Russell.

What does the Bull-Jack look like

He is a medium sized dog weighing 30 to 45 pounds. He has flappy ears and his coat can be like the Bulldog or the Jack Russell. It is straight and can be short, sleek or half smooth and half harsh. Common colors are white, red, brown, black, golden, cream, speckled, spotted, Merle and Brindle.

Training and Exercise Needs

How active does the Bull-Jack need to be?

He can be moderately to fairly active and will need regular exercise to keep healthy and remain happy. He loves to chase a ball and play with you so time in a dog park would be great as well as daily walks twice a day. Take care not to let him compromise his breathing as like a Bulldog he can have problems if he pushes too hard. He can adapt to apartment living, his size is just about fine as long as gets out every day. He should have some mental challenges to keep his mind active also.

Does he train quickly?

He is not an easy or quick dog to train. It can be difficult and so he is not the best choice for a first time dog owner. He will need you to remain calm and be positive with your techniques, using treats, praise and rewards to motivate. Training sessions should be kept short and engaging and you need to be firm, patient and consistent. If you do not have the time to be committed to early training and socialization or the patience for the time it will take this is not the right dog for you.

Living with a Bull-Jack

How much grooming is needed?

He is a low to moderate maintenance dog, he sheds a low to moderate amount so brushing every other day should be plenty to keep it free of loose hair and looking healthy and shiny. He needs to be given a bath now and then but just when he really is dirty or smelly so needs one. Bathing too often is not a good idea as it affects the natural oils in his skin. Always use a shampoo that is for dogs not for people. His nails should be clipped when they get too long, as there is a lower section called the quick that has live vessels and nerves, make sure you do not cut too low as it will hurt them and bleed. If unsure have a groomer do it for you. His ears should be checked for infection and wiped clean once a week and his teeth brushed two to three times a week.

What is he like with children and other animals?

With early socialization and training he can be very good with children, playing with them, being gentle and patient. With other pets again he does have instincts to chase other animals but the early socialization can help. With other dogs there can sometimes be issues and this is certainly not a dog to skip training and socialization with.

General information


He barks rarely and can be a good watchdog though that does seem to vary from one Bull-Jack to another. He will need to be fed a high quality dry dog food and needs 1½ to 2½ cups a day split into at least two meals.

Health Concerns

There are health issues that he can inherit from his parents. To avoid them you should ask the breeder to show you health clearances for the parents before you buy. Those concerns include Eye problems, patellar luxation, Legg-Calve-Perthes disease, Deafness, Reverse sneezing, brachycephalic syndrome, head shakes, hip dysplasia, skin problems and tail problems. Visiting the puppy at the breeders before buying is also highly recommended as it is the best way to see the conditions he and other dogs re kept in and judge the trustworthiness of the breeder.

Costs involved in owning a Bull-Jack

A Bull-Jack puppy's cost is unknown at the moment as it is a more uncommon designer dog and harder to find prices for. Other costs though will include getting a collar and leash, carrier, crate, blood tests, deworming, vaccinations, chipping and neutering which come to between $455 to $500. Each year you will need to be able to cover at least the basics, both medical and non-medical in nature. Medical comes to $460 to $560 for vaccinations, check ups, flea prevention and health insurance. Non-medical comes to between $375 to $475 for just things like food, license, training, toys and treats.


Looking for a Bull-Jack Puppy Name? Let select one from our list!

The Bull-Jack could be a great pet for the right people. He needs someone with patience and experience as his training is not smooth sailing. He can be a wonderful loving, loyal and gentle dog though with the right owners.

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