Spring Coat Blow: Managing Dog Shedding in Australia
Why your dog erupts every September, what actually shifts the undercoat, and the one thing you must never do to a double coat
The spring coat blow runs roughly September to November in Australia, and it is triggered by increasing daylight, not by warm weather.
Never shave a double coat. The undercoat insulates against heat as well as cold, and shaving can permanently wreck the coat's texture.
Bathing and drying thoroughly is what actually releases a blown undercoat — brushing a dry, packed coat does half the job at best.
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- 📅Peak blow: September to November
- ☀️Triggered by daylight, not temperature
- 🚫Never shave a double coat
- 🪮Daily brushing during the blow
- 🛁Bath and full dry releases undercoat fastest
- ⏳A good deshed holds for 3-6 weeks
Some time in the back half of September you will run a hand down your dog's side and come away with a handful. Not a few hairs — a handful. Then it happens again an hour later, and by the end of the week there is a second dog's worth of fluff drifting along the hallway skirting boards. This is the spring coat blow, and it is not a grooming failure. It is the annual changeover, and it is on a schedule.
The useful thing to understand is what sets it off. It is not the first warm day. The trigger is photoperiod — the lengthening daylight after the winter solstice. That is why dogs in heated houses still blow coat on time, and why the timing is fairly predictable year to year.
Coat blows per year: spring and autumn
Brushing needed during a blow
How long a proper deshed holds
Groom interval through the blow
Single Coat vs Double Coat
Almost everything about managing shedding depends on which coat your dog has. A double coat is two distinct layers: a coarse outer guard coat that sheds water and blocks UV, and a dense woolly undercoat underneath that does the insulating. It is the undercoat that blows out in great clumps each spring.
| Coat type | Typical breeds | Spring behaviour |
|---|---|---|
| Double coat | Labrador, Golden Retriever, Husky, Malamute, Australian Shepherd, Cattle Dog, German Shepherd, Samoyed | Dramatic seasonal blow, clumps of undercoat |
| Single coat | Greyhound, Boxer, Staffy, Dachshund, Whippet | Light steady shedding, no real blow |
| Low-shed / hair coat | Poodle, Cavoodle, Maltese, Shih Tzu, Bichon | Minimal shedding but mats instead — needs clipping |
| Wire coat | Border Terrier, Schnauzer, Wire Fox Terrier | Sheds little, needs hand-stripping or clipping |
Never shave a double-coated dog to keep it cool
This is the most common and most damaging summer mistake in Australia. The undercoat insulates in both directions — it keeps heat out as much as it keeps heat in — and the guard coat is what blocks UV off the skin. Shave it and you remove the sun protection, disable the cooling system, and risk the coat growing back patchy and woolly. If your dog is hot, address the heat directly with shade, water and timing. Do not take the coat off.
What Actually Shifts a Blown Undercoat
Most people attack a coat blow by brushing a dry dog harder and for longer, get frustrated, and conclude their brush is rubbish. The problem is usually the method, not the tool. A packed, blown undercoat is held in place by the guard coat above it, and dry brushing only lifts what is already loose near the surface.
What groomers do is a sequence: brush the dry coat out first to break up anything matted, then bathe, condition, work the product through to the skin, rinse thoroughly, and — critically — dry the coat completely with air moving through it. The wash-and-dry cycle swells and then releases the dead undercoat, and vastly more of it comes away on the brush afterwards.
The Deshedding Sequence
Brush the dry coat first
Break up any mats and lift the surface fluff before water goes near it. Bathing a matted coat tightens the mats.
Bathe with a proper rinse
Work shampoo right down to the skin, not just over the guard coat, then rinse until the water runs completely clear. Leftover product irritates skin.
Dry completely, with air movement
This is the step people skip and it is the one that matters most. Trapped damp under a thick undercoat causes hot spots and skin infections.
Brush again while drying
Work in sections against the lie of the coat. This is when the undercoat comes away in sheets rather than wisps.
Maintain daily through the blow
Ten minutes a day beats an hour on Sunday, and keeps the fur out of your carpet rather than in it.
Choosing Tools Without Wrecking the Coat
Bladed deshedding tools work by cutting and pulling dead undercoat through the guard coat, and they are genuinely effective when used lightly on a clean, dry, brushed coat. The catch is that the same blade will happily cut healthy guard hairs if you lean on it, use it on a damp or matted coat, or keep going over the same patch. Used with a light hand a few times a season, they are excellent. Used hard every day, they thin the coat you are trying to protect.
The rule of thumb
Slicker brush and undercoat rake for regular work — as often as you like. Bladed deshedding tool for the heavy blow only, light pressure, and stop when the yield drops off. If the tool is still filling up after twenty minutes on one flank, you have moved from removing dead coat to removing live coat.
Andis Premium Slicker Brush
The everyday workhorse. Fine bent wire pins pull loose undercoat up through the guard coat without cutting anything, which makes it the safe option for daily use right through the blow.
FURminator Deshedding Tool
The heavy-hitter for peak blow. Pulls enormous volumes of dead undercoat in a short session. Use it on a clean, dry, already-brushed coat, with light pressure, and stop when the yield drops — that is the point where it starts taking healthy coat.
Safari Dematting Comb
For the felted patches that form behind the ears, in the armpits and around the back legs when a blown undercoat packs down. Splits mats apart so you can brush them out instead of cutting them out.
TropiClean Oatmeal Dog Shampoo
The bath is the step that actually releases a blown undercoat, so it is worth doing properly. An oatmeal formula cleans without stripping skin oils and conditions the guard coat, so the brush glides through afterwards instead of dragging and snapping hair.
Spring Coat Blow Checklist
- Work out whether my dog is single or double coated
- Set a daily ten-minute brushing slot
- Brush dry before any bath, never after
- Book a groom for the peak of the blow
- Check armpits, ears and hocks for packed mats
- Dry the coat completely after every bath
- Rule out fleas or allergies if shedding looks patchy
- Resist every suggestion to shave the dog for summer
When Shedding Is Not Just Shedding
A coat blow is diffuse and even — the whole dog loses undercoat, the skin underneath looks healthy, and the dog is comfortable. What is not normal is bald patches, broken hairs, flaking, redness, scabs, or a dog that is itching and chewing rather than simply moulting.
Book a vet check if you see these
Distinct bald patches rather than general thinning. Red, flaky or scabby skin. Constant scratching, chewing or licking. A sudden coat change with lethargy or weight change, which can point to thyroid problems. Spring is also flea season and peak allergy season, and both look like bad shedding from a distance.
Where the fur actually goes
Brush outdoors and you halve the problem before it starts. A rubber-backed mat by the door, a quick brush after walks, and washing bedding weekly through spring does more for the state of your house than any vacuum upgrade.
The blow lasts a few weeks, not the whole season. Ten minutes a day through September and October, a proper bath-and-dry at the peak, and a hands-off policy on the clippers will get your dog into summer with the coat intact — which is exactly the coat they need to cope with it.
Frequently asked questions
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