Cava Tzu

The Cava Tzu is a cross between the Cavalier King Charles Spaniel and the Shih Tzu — two of the world’s most devoted companion breeds — producing a small, gentle, and warmly affectionate dog that is ideally suited to a wide range of homes and owners. The combination of the Cavalier’s sweet, loving nature with the Shih Tzu’s calm, regal companionship results in one of the most consistently gentle-tempered small crossbreeds available.

As with the Beaglier, the Cavalier’s hereditary health profile demands careful attention before purchase. Mitral Valve Disease and neurological conditions are serious, well-documented risks in the Cavalier line, and full health testing of the Cavalier parent is non-negotiable. In the right household, and from parents with complete health credentials, the Cava Tzu is a devoted, calm, and long-lived companion.

The Cava Tzu is a designer hybrid developed from the late 20th century onward, combining the Cavalier King Charles Spaniel — whose history stretches back to the courts of King Charles II of England and the toy spaniels depicted in 17th-century portraiture — with the Shih Tzu, one of the oldest companion breeds in the world, developed as a lion dog companion to the Chinese Imperial court during the Ming Dynasty. Both breeds were developed over centuries purely as companion animals to royalty and nobility, with no working function beyond providing company.

The Cava Tzu inherits this shared heritage of gentle, devoted companionship from both parent lines. It is not Kennel Club recognised and has no formal breed standard. Individual appearance and temperament vary depending on which parent’s traits are more strongly expressed.

The Cava Tzu is a small dog typically standing 23 to 38 cm at the shoulder and weighing between 4 and 8 kg. The build is compact and lightly boned, with a rounded head that draws on the Shih Tzu’s domed, short-muzzled structure and the Cavalier’s softer, more pronounced face. The muzzle is typically shorter than a Cavalier but less extreme than a pure Shih Tzu, often resulting in fewer brachycephalic breathing complications than either parent at their most extreme.

Eyes are large, round, and warmly expressive. Ears are long and pendant, covered in soft feathering from both parent breeds. The coat is medium to long, soft, and often silky or gently wavy, available in a wide range of colours including white, cream, black and white, tricolour, Blenheim (chestnut and white), and combinations of Shih Tzu colouring. The coat sheds moderately and requires regular maintenance to prevent matting.

The Cava Tzu is one of the most consistently gentle crossbreeds available. The Cavalier’s deep affection and the Shih Tzu’s calm, dignified companionship combine to produce a dog that is warm with almost everyone it encounters, rarely aggressive or reactive, and genuinely happiest when close to its people. Cava Tzus are adaptable and social — they get on well with children, other dogs, and household pets, and they adjust readily to different living environments.

Notably for a small companion breed, the Cava Tzu rarely barks excessively, making it an excellent choice for flat dwellers and those with noise-sensitive neighbours. The Shih Tzu’s composure moderates the Cavalier’s more excitable moments, producing a dog that is alert and engaged but generally calm indoors. The breed forms close bonds with its family and is prone to separation anxiety when left alone for extended periods; early alone-time conditioning is important.

The Cava Tzu is a willing and generally trainable small dog. The Cavalier’s desire to please provides good training motivation, and the Shih Tzu’s intelligence means the breed learns household routines and basic commands readily. Positive reinforcement with food rewards and gentle praise produces the best results; harsh methods cause anxiety and shut the dog down entirely.

House training may require patience given the Shih Tzu’s occasional stubbornness around toilet routines. Crate training from puppyhood helps structure the process. Early socialisation is generally easy given the breed’s natural warmth, but should still be conducted systematically to build confidence in varied environments. Alone-time conditioning is one of the most important early training investments for this attachment-prone cross. The Cava Tzu is well suited to gentle obedience training and therapy work, which channels its people-oriented nature productively.

The Cava Tzu is a gentle and patient companion for children who interact with it respectfully. Its warm, non-reactive temperament and adaptable nature make it well suited to family life with children of many ages. Both parent breeds are celebrated for their tolerance with children, and the Cava Tzu reliably inherits this quality.

The breed’s small, lightly boned frame and its Cavalier heritage — which can produce cardiac vulnerability — mean that vigorous, rough play should be discouraged. Very young children who cannot yet interact gently should always be supervised. With children aged six and above who play calmly and respectfully with the dog, the Cava Tzu is a warm, affectionate, and enduring companion that tends to bond with every member of the household rather than attaching exclusively to one person.

The Cava Tzu’s health profile is significantly shaped by the Cavalier King Charles Spaniel parent, which carries some of the most serious hereditary conditions of any breed. Mitral Valve Disease (MVD) is the most critical concern: this progressive heart condition affects the great majority of Cavaliers by middle age, and the BVA/KC/BC Heart Scheme requires Cavalier parents to be heart-tested annually by a cardiologist and free of murmurs before breeding. Buyers must insist on current, documented results.

Syringomyelia and Chiari-like Malformation — neurological conditions causing chronic pain — are additional Cavalier-specific risks requiring MRI screening of the Cavalier parent. The Shih Tzu contributes potential brachycephalic airway issues: Cava Tzus with a shorter muzzle may experience breathing difficulty in hot weather or during exertion. Eye conditions, dental crowding, and kidney disease have been recorded in both parent lines. A healthy, well-bred Cava Tzu from fully health-tested parents typically lives 10 to 15 years.

The Cava Tzu is an adaptable companion that suits flats, apartments, and smaller homes with ease. Its calm temperament and low exercise needs make it a practical small dog for urban and suburban owners. As a companion breed that thrives on human interaction, it should not be regularly left alone for more than three to four hours at a time; alone-time conditioning prevents separation anxiety from developing.

Brachycephalic awareness is important for Cava Tzus that inherit a shorter muzzle: exercise should be limited during hot weather, and signs of breathing distress — laboured breathing, blue-tinged gums, or excessive panting at rest — warrant immediate veterinary attention. Daily facial cleaning removes food and eye debris that accumulates around the short muzzle. Dental care is important given both breeds’ predisposition to dental crowding. Routine ear cleaning, nail trimming, and regular coat maintenance complete the care routine.

The Cava Tzu’s medium to long, soft coat requires brushing two to three times per week to prevent tangles and matting, particularly around the ears, chest, and under the collar where contact friction causes knots. Professional grooming every six to eight weeks keeps coat length manageable and ensures thorough cleaning of the face and paws.

The facial area requires daily attention: food debris and eye discharge accumulate around the short muzzle and under the eyes, and regular cleaning prevents skin irritation and staining. Ears should be checked and cleaned weekly given the pendant ear structure. Bathing every three to four weeks keeps the coat clean and healthy. Nail trimming, daily teeth brushing, and parasite prevention complete a grooming routine that is moderate in time but important for maintaining the Cava Tzu’s comfort and health.

The Cava Tzu is a low to moderate energy breed that is comfortably satisfied with 30 to 45 minutes of exercise per day, split across two short walks supplemented by indoor play. Both parent breeds were developed as companion animals rather than working dogs, and the Cava Tzu reflects this gentle, unhurried approach to exercise.

Brachycephalic individuals — those with shorter muzzles — must have exercise managed carefully in warm weather: walks should be timed to the cooler parts of the day, and signs of overheating should be taken seriously. Off-lead exercise in safely enclosed spaces is fine for this breed; it does not have the prey drive or wandering instinct of terrier or hound crosses. The Cava Tzu’s priority is company rather than activity; it is equally content with a short walk and an afternoon of being close to its owner as it is with more structured outdoor exercise.

The Cava Tzu does best on a high-quality complete diet formulated for small breeds, fed twice daily. Small breed formulas provide the appropriate caloric density and nutrient balance, including levels of calcium and phosphorus supportive of dental health — relevant given both parent breeds’ predisposition to dental crowding. Dry kibble is generally preferable to wet food as the primary diet.

The Shih Tzu’s brachycephalic structure can make eating from a flat bowl uncomfortable; a slightly raised or shallow bowl reduces the effort required during feeding. Portion sizes must be carefully controlled given the breed’s small frame. Training treats should be counted against the daily calorie allowance. A diet with omega-3 support benefits the coat and may also offer cardiovascular benefits relevant to the Cavalier’s cardiac predisposition. Fresh water should always be available.

Cava Tzu puppies from health-tested parents in the UK typically cost between £700 and £1,500. As with the Beaglier, prices at the higher end reflect genuine Cavalier cardiac and neurological testing costs; unusually low-priced Cava Tzu puppies are almost certainly from parents without full health credentials.

Initial setup costs — vaccination, microchipping, neutering, bedding, crate, collar, lead, and toys — typically add £400 to £600. Ongoing monthly costs include small breed food (£25 to £40), routine veterinary care, parasite treatments, professional grooming every six to eight weeks, and pet insurance. Given the Cavalier’s hereditary cardiac risks, comprehensive lifetime insurance is strongly advisable; monthly premiums typically range from £22 to £42. Total lifetime ownership costs over a 10 to 15 year lifespan are typically in the region of £16,000 to £24,000.

Health testing is the single most critical factor when purchasing a Cava Tzu. For the Cavalier parent, insist on a current cardiac examination under the BVA/KC/BC Heart Scheme — the Cavalier must be free of heart murmurs at time of breeding. MRI screening for Chiari malformation and Syringomyelia is strongly advisable. Eye scheme certificates for both parents and a dental and brachycephalic assessment of the Shih Tzu parent are additional worthwhile requests.

Never purchase a Cava Tzu without documented Cavalier cardiac results — this is non-negotiable. The Cavalier Club and the Shih Tzu Club of Great Britain can provide guidance on responsible breeders. Always view the puppy with its mother. The Cavalier Club operates a breed rescue scheme and Cava Tzus occasionally appear through Shih Tzu rescue organisations, which is worth exploring for patient, experienced owners of small companion dogs.