At a glance
Key facts
The essentials to compare before deciding whether this breed fits your home and routine.
- Size
- Large
- Lifespan
- 10 to 12 years
- Energy
- Medium to high
- Temperament
- Calm indoors, deep voiced, relentless on a scent
- Good with children
- Often good with children, patient but very large and heavy
- Exercise
- 90 minutes or more a day of long steady walks
- Trainability
- Moderate
- Grooming
- Weekly brushing with regular ear cleaning and moderate shedding
- Estimated monthly cost, GBP
- £110 to £200 per month
The Grand Bleu de Gascogne is a hound of the old French kind, big, slow spoken and built for a long day’s work in the hills of Gascony. It hunted wolf and later boar and deer in packs, and its deep, ringing voice was bred so that hunters on foot could follow the pack through wooded country by sound alone. Standing 62 to 72cm and weighing about 35 to 40kg, it is one of the largest scent hounds in the world, and the mottled blue and black coat, long velvety ears and heavy dewlap give it a look that stops people in a park.
Almost nobody outside France has one. The breed is listed on the UK Kennel Club’s Imported Breed Register. Litters are very few, and buyers usually wait or import from France.
Suitability
Indoors the Grand Bleu is a calm, affectionate, rather lazy dog once exercised, happy to spread across a sofa or stretch along a hallway. It tolerates children patiently but is heavy enough to knock a small one flat by turning round. It is sociable with other dogs, as a pack hound should be, and usually settles with a cat it has grown up with, though anything that runs in a field is game. The voice is the awkward part. A bored or lonely Grand Bleu bays, and the sound carries a long way, which makes terraced housing, flats and close neighbours a poor fit. Being left alone for long periods suits the breed badly. Guarding is minimal; a stranger gets a solemn look and a wagging tail. Strength on the lead, a great deal of drool around water bowls and a coat that smells of hound are all part of the deal.
Recommended products

No-pull harness
Company of Animals Halti Front Control Harness
Front-control harness for a strong dog while loose-lead walking is taught.
View product : Company of Animals Halti Front Control Harness at Amazon, affiliate link, opens in a new tab
Double-ended training lead
Halti Double Ended Lead
Two metre lead with a clip at each end, so it can be set short or long.
View product : Halti Double Ended Lead at Amazon, affiliate link, opens in a new tab
Food-dispensing toy
KONG Wobbler
Weighted feeder that tips as the dog nudges it, releasing dry food.
View product : KONG Wobbler at Amazon, affiliate link, opens in a new tab
Exercise
An adult needs ninety minutes or more a day, best given as long, steady walks with plenty of time to use its nose, plus a run inside a secure field. Off-lead exercise in open country is unwise, since the dog will follow a deer line for miles and hear nothing. A long line and a harness that spreads the load are the usual answer. Puppies grow fast and large, so limit walks to short outings, avoid stairs and jumping, and let the dog sleep as much as it wants until it is at least a year old. The rules on keeping dogs under control near livestock apply with particular force to a hound this size.
Grooming
A rubber mitt run over the short dense coat once a week deals with moderate year-round shedding. The ears do most of the work. Long, low set and folded, they trap moisture and food, dragging through puddles and bowls, and need a weekly inspection and gentle cleaning to prevent infection. The loose skin around the mouth and the dewlap should be wiped after meals. Nails on a heavy dog that does no roadwork need regular trimming, and the feet should be checked after walks on wet ground.
Health
The breed is generally hardy, and ten to twelve years is a fair expectation for a hound this size. Hip dysplasia is the condition to ask about, so ask whether breeding dogs have been hip scored, under the BVA and Kennel Club scheme in Britain or the French equivalent for imported parents. Gastric torsion is a risk in any deep-chested large hound, so feed twice a day, avoid exercise around meals and know the signs. Ear infections are common where cleaning lapses. Drooping lower eyelids can trap debris and need an occasional look. Keep the dog lean; a Grand Bleu carrying extra weight loads its joints and shortens its life, and the loose skin makes fat easy to miss without feeling the ribs.
Choosing and training
Because so few are bred, the practical route is through the breed’s enthusiasts, whose contact details the UK Kennel Club holds for breeds on its Imported Breed Register. Expect to wait, to travel, and possibly to bring a puppy in from France with the paperwork that involves. Insist on seeing the dam and, where possible, adult dogs living in a home. Training should start early and lean on food, because the breed is amiable but not eager to please in the gundog sense. Priorities are loose-lead walking taught while the puppy is small, a settle on a bed, standing for handling and a recall practised only where success is likely. Scent work suits these dogs perfectly and tires them far more than distance. A budget of £110 to £200 a month is a starting estimate; food for a 40kg dog, medication priced by weight and large-breed insurance premiums push it up. A large garden with tall, solid fencing and a car with a big boot are both needed.
Verdict
The Grand Bleu de Gascogne suits a rural or edge-of-town household with space, tolerant neighbours, previous experience of large hounds, and a taste for a dog that is rare, striking and quietly affectionate at home.
It is the wrong dog for a first-time owner, for anyone in a flat or terrace, for households out all day, or for people who need a dog that comes back when called. Anyone who simply likes the colour should meet an adult first and listen to it bay.
Recommended equipment
Chosen from the Grand Bleu de Gascogne’s size, coat, grooming and exercise needs rather than from any one dog, so check the fit for yours. Each links to a researched buying guide that compares the options and says what each is less suited to.
Collar and ID tag
Best Dog Collars UK: everyday fit and safety
The collar carries the identification tag, so it stays on even when the lead clips to a harness. A larger dog is better with a wider band.
Based on Size: Large
Compare every pick in Best Dog Collars UK: everyday fit and safetyWhere to start
Best for an everyday tag collar with a one-handed clip
Ruffwear Front Range Dog Collar
Coat care
Best Dog Grooming Brushes
A smooth coat needs little more than a rubber brush to lift loose hair, and the same brush can be used in the bath.
Based on Coat type: Smooth
Compare every pick in Best Dog Grooming BrushesWhere to start
Best for short coats and bath time
KONG ZoomGroom
Nail care
Best Dog Nail Clippers and Grinders
Thicker claws suit a guillotine-style clipper, which cuts in one action once the claw sits in the opening.
Based on Size: Large
Compare every pick in Best Dog Nail Clippers and GrindersWhere to start
Best for larger dogs with thick claws
Mikki Classic Guillotine Claw Clipper
