Long before Sport Horse Essentials existed, back when I was still learning most of this the hard way, there was a woman at our yard called Marnie.

Nothing flashy about her setup. An older mare, a lot of hacking out, the occasional local show she never seemed nervous about.

And every single spring, while the rest of us were dealing with a rain rot patch that wouldn't clear, or a shoe that kept coming off, or a horse who'd lost more condition over winter than we'd realised, Marnie's mare came out in March looking like nothing had happened at all.

I assumed she had some trick. She didn't.

What she had was a list of things she deliberately didn't do in autumn. Habits the rest of us were carrying straight from August into November without noticing that the season underneath us had completely changed.

That list became the backbone of how we approach fall care now, and a fair bit of why our products are formulated the way they are. Two decades and a lot of horses later, the same seven mistakes still catch people out every single year.

Here they are.

Most people assume the winter coat comes in because it gets cold. So they don't think about it until the weather turns, which is already too late to be planning around.

The trigger isn't temperature. It's daylight.

Light hits receptors in the horse's eyes, which signal the pineal gland, which increases melatonin as the days get shorter. That hormonal shift is what tells the body to start growing a winter coat. Temperature affects how thick it ends up, but the switch is flipped by light.

Here's the part that matters. Days start shortening after the solstice in June, and coat changes lag roughly five to eight weeks behind that shift. Which means by the middle of August, when winter is the last thing on anyone's mind, the winter coat is already coming in.

In summer, a sweaty horse dries in twenty minutes. You walk them out, put your tack away, and the coat is dry by the time you're back.

In autumn, that same horse with that same amount of sweat can stay damp for hours.

The coat is longer and denser and holds water against the skin instead of letting it evaporate away. Meanwhile the air is cooler, so a wet horse standing still is losing heat fast. You end up with a horse that's damp, chilling, and carrying moisture right against the skin.

Almost everyone gets this wrong, because the horse feels cool to the hand well before the coat is actually dry. So the walking stops too early.

This is the one that turns a three-day problem into a three-week one.

Rain rot is caused by a bacterium that lives quite harmlessly on your horse's skin most of the time. It only becomes a problem when the skin's outer layer breaks down, and what breaks it down is prolonged moisture.

Now count up what autumn brings. A longer coat that holds water against the skin. More rain. Heavy morning dew that soaks a horse before you've arrived. Sweat from conditioning work. Everything taking hours longer to dry than it did in summer.

Horses with long winter coats are at higher risk precisely because moisture gets trapped close to the skin. It isn't bad luck and it usually isn't bad management. It's the season.

And the coat that's causing it is also hiding it. A brush over the top of a thick autumn coat will tell you nothing.

The signs that show up first

Autumn does something to hooves that no other season does. It can't decide what it's doing.

Summer ground is hard and dry. Winter ground is consistently wet. Autumn swings between the two, sometimes within the same day. Dew-soaked mornings, dry afternoons, then a week of rain, then it firms up again.

A hoof absorbs moisture and expands, then dries out and contracts. Do that repeatedly and the structure weakens, which is where the chips, cracks and pulled shoes come from. It's why a hoof that held up perfectly all summer can start falling apart in a fortnight when the weather turns.

The wet half brings the second problem. A softened hoof is more porous, and the grooves either side of the frog pack up with wet mud that seals out air. The bacteria behind thrush can't survive around oxygen, which is exactly why they set up in the one place on the hoof where air struggles to reach.

The temperature drops a bit, the worst of the summer swarms thin out, and the bottle goes to the back of the shelf.

In much of the country flies stay active right up until the first frost, which often means October or into early November. That's weeks of assumed safety that isn't actually safe.

And autumn brings a specific problem that summer doesn't.

There's a knock-on effect too. A horse being pestered stomps, swishes and fidgets. Stomping stresses the hoof and loosens shoes, which matters more now that the ground is softening. And a horse that won't stand quietly through a long autumn cool-out is a horse that stays damp for longer, which loops you straight back to Mistake 02.

There's a specific afternoon every autumn where you finish a ride, look at a sweaty horse, look at the hose, and think: absolutely not.

You're right to hesitate. A soaked winter coat takes hours to dry, a wet horse standing in cold air loses heat quickly, and you've just added a large amount of water to skin that's already spending too much time damp.

The mistake isn't skipping the bath. It's what happens next, which is usually nothing.

Horses don't stop needing to be clean just because bathing became impractical. They still sweat under tack. They still lie down in something unspeakable overnight. Greys still find the one muddy patch in a clean paddock and wear it like a badge.

Sweat and dirt left sitting in a thick coat is exactly the microclimate the skin problems in Mistake 03 thrive in. So "leave it until spring" quietly becomes the cause of the thing you'll be treating in January.

After a summer of riding at seven in the morning to beat the heat, autumn feels like a gift. The air is cool, the horse is forward, the footing has softened from summer concrete but hasn't turned to soup yet.

So people ramp up. More often, and harder, and both in the same week.

Which is how a horse that had a quiet summer ends up sore, or worse, in the middle of the nicest riding weather of the year.

The mistake	What it causes	What to do instead
Waiting for cold to think about the coat	Caught off guard by sweat and slow drying	Treat it as a winter coat from late August
Cooling out like it's still July	Damp horse, chilling, moisture on skin	Walk until the coat is dry, not until the horse is cool
Looking instead of feeling	Rain rot found in week four, not week one	Hands on skin daily, treat the day you find it
Letting the hoof routine slide	Cracks, lost shoes, thrush taking hold	Pick properly and oil daily, all four feet
Putting fly spray away in September	Bot eggs, stomping, restless horses	Keep spraying until the first frost
Skipping cleaning because you can't bathe	Sweat and dirt sitting in a thick coat	Spot clean without water, same day
Ramping up because the weather is nice	Soreness or injury in the best riding month	Increase duration or intensity, never both

The daily routine that covers all seven

1. Hands over the whole horse before you tack up. Topline, girth, quarters, down each leg. Feeling for bumps, heat, scabs and sore spots the coat is hiding. Sixty seconds.
2. Pick out all four feet, properly. Full depth of the grooves. Smell the foot. Thumb the frog. Then oil the whole thing including the coronary band.
3. Groom through the coat, not over it. Curry hard enough to reach skin. Doubles as your second skin check.
4. Ride the plan, not the weather. One variable at a time.
5. Cool out for longer than feels necessary. Dry to the touch. Scrape and towel the wet patches. Never rug a damp horse.
6. Spot clean what needs it, so nothing sits damp against skin overnight.
7. Fly spray until the frost, then sort the dewormer timing with your vet.

Most autumn problems are manageable at home if you catch them in week one. These aren't.

That weight loss point deserves emphasis. A thick winter coat is very good at hiding a horse dropping condition. Get your hands on the ribs and topline weekly, because by the time you can see it through a fall coat, it has been going on a while.

I asked her about it eventually. Not for years, mind you, and by then I was already deep enough into natural horse care that I should have worked it out myself.

She said something that has shaped how we think about autumn ever since. That everyone treats fall like the end of the year, when it's actually the beginning of the next one.

That idea is baked into everything we make now. The skin problems you prevent in November are the ones you're not treating in January. The hooves you keep steady through the wet and dry swings are the hooves that don't need growing out in spring. The condition you protect under a thick coat is condition you don't have to put back on.

We've spent the years since building products for exactly that job. Not for fixing things after they've gone wrong, but for the daily, unglamorous work that stops them going wrong in the first place.

None of it is dramatic. It's a longer cool-out, hands on the horse every day, feet picked properly, and not letting the routine slide just because the weather did.

Six weeks of that right now sets up the six months after it.