Quick answer: Spring pasture can raise laminitis risk for horses that are overweight, have had laminitis before, or have insulin dysregulation, but the risk varies with pasture, weather, intake and the individual horse. Protecting your horse means controlling access to lush growth, keeping forage and body condition under review, and getting veterinary advice for high-risk horses. If you see sudden lameness, warm feet, strong digital pulses or a sawhorse stance, treat it as an urgent veterinary problem.
The rider's take: I have seen a quiet autumn pony become noticeably short-strided after a burst of spring growth following rain. The mistake was assuming that a familiar paddock was still offering the same feed; it was not. Pasture changes quickly, so I prefer a simple daily check of the horse, the grass and the fencing rather than relying on the calendar alone.
Spring is a lovely time to have horses in Australia, right up until the paddock changes under their feet. Rain, warmer days and rapid growth can turn a previously ordinary pasture into a much richer feed source. That does not mean every horse must be removed from every green paddock, but it does mean pasture access deserves a proper plan.
Laminitis is painful and can become life-threatening. Good management is not about finding one magic product or one perfect grazing hour. It is about spotting risk early, controlling total intake and working with your veterinarian, farrier and, where needed, an equine nutritionist. Your wider horse health routine matters just as much as the paddock itself.
A veterinary check is the right next step when a horse shows possible signs of laminitis.
What makes spring pasture a laminitis concern?
Laminitis involves damage to the sensitive laminae that help attach the hoof wall to the coffin bone. In severe cases, that attachment can weaken enough for the coffin bone to rotate or sink. The word founder is often used for chronic structural consequences, but it is not a perfect synonym for every acute episode.
Pasture-associated laminitis is linked with excess intake of non-structural carbohydrates, commonly shortened to NSC. That includes sugars and starches, as well as fructans. Pasture NSC can change substantially with species, growth stage, weather, temperature, stress and management. Australian research reported by AgriFutures has highlighted how large those changes can be, which is why a fixed rule about one grass type or one time of day is too simple.
Spring can be higher risk because pasture grows rapidly after rain and horses may eat more of it than owners realise. A paddock can look short and harmless while still providing a concentrated intake for an easy keeper. A sudden flush after a dry period also deserves attention. Regional conditions differ widely between, for example, southern highlands, coastal New South Wales and warmer northern areas.
Previous laminitis is a major warning flag. So are obesity, an easy-keeper type, equine metabolic syndrome or insulin dysregulation, and PPID. A horse does not need to look dramatically overweight to warrant veterinary assessment, and body shape alone cannot diagnose EMS or PPID. Other causes, including grain overload, sepsis, retained placenta and supporting-limb overload, can also trigger laminitis, so pasture is only one part of the picture.
Which horses need the most careful pasture plan?
Start with the individual horse, not the paddock label. Two horses grazing side by side may have very different risk because their metabolism, exercise, history and intake differ. Keep a written note of any past episode, changes in body condition, veterinary findings and how the horse responds when pasture growth accelerates.
- Previous laminitis: recurrence risk is higher, and returning to unrestricted pasture should never be assumed safe.
- Easy keepers: a horse that maintains weight on very little feed may need stricter intake management than a hard-working horse.
- Metabolic concerns: ask your veterinarian whether testing for insulin dysregulation or PPID is appropriate rather than guessing from appearance.
- Recent feed changes: unplanned grain, concentrates or a sudden switch from hay to lush grass can add to the total carbohydrate load.
- Reduced movement: injury, box rest or a sharp drop in work can change the balance between intake and energy use.
Body condition is worth checking with your hands, not just your eyes. A thick crest, fat behind the shoulder or ribs that are difficult to feel may be useful clues, but they are not a diagnosis. Photographing the horse from the same angle every few weeks can help you notice gradual change before it becomes obvious.
James's practical note: In practice, the horses that worry me most are the ones described as “just a little chunky” while their workload has quietly dropped. A regular body-condition conversation with the vet is less dramatic than a late-night emergency call, and it gives you time to adjust forage and turnout calmly.
How can you control pasture access without starving a horse?
Prevention should reduce the high-risk intake while keeping the horse’s feeding routine sensible. Do not suddenly remove all forage or create a long period without feed. Abrupt restriction can create its own welfare and digestive problems, and the right calorie target depends on the individual horse.
Some Australian owners use a dry lot, sacrifice yard or track-style system to reduce access to the richest areas while preserving movement. Others use limited turnout, a correctly fitted grazing muzzle or a sectioned paddock. A grazing muzzle is a management tool, not a guarantee: it needs correct fit, daily monitoring, water access and supervision, especially when first introduced.
Forage should remain the foundation of the ration, with hay and any concentrate selected with professional advice. Hay soaking may reduce some water-soluble carbohydrates, but results vary with hay and soaking method. It should not be treated as a guarantee, and the remaining ration still needs to be balanced. The same caution applies to supplements: no supplement replaces intake control, body-condition management or veterinary guidance. You can browse horse supplements for general care products, but a store product cannot diagnose or treat laminitis.
Make changes gradually where possible. Measure feed rather than guessing by scoop, check the paddock after rain and inspect gates and fencing so a determined pony cannot undo the plan overnight. If you are changing turnout, hay or concentrates for a high-risk horse, involve your veterinarian or nutritionist first.
Pasture management works best when turnout, forage, body condition and movement are considered together.
What signs of laminitis should you check each day?
Early signs can be subtle. A horse may be reluctant to walk, take shorter steps, shift weight from foot to foot or spend more time lying down. Some horses adopt a sawhorse stance to unload the front feet. The hooves may feel warmer than usual and the digital pulses at the fetlock may feel stronger or bounding. All four feet can be affected, although the front feet are often more severely involved.
A daily check is especially useful during a fast pasture flush or after a management change. Watch the horse walking on a firm, level surface without forcing exercise. Look for a change from that horse's normal way of turning, standing, leaving the paddock or walking to feed. Do not wait for an obvious limp; a quiet, short-strided horse may still be in significant pain.
If laminitis is suspected, remove access to the suspected pasture or feed and call your veterinarian immediately. Keep the horse quiet and, while waiting for advice, provide supportive, deep footing if it is safe to do so. Do not give medication, force exercise, cold-hose, trim the feet or make a drastic feed change as a universal home treatment. Your veterinarian and farrier should direct the response, including whether imaging is needed.
How should spring pasture management fit into a wider care routine?
Pasture control is one part of a prevention plan. Schedule regular farrier care and tell the farrier about any previous laminitis or metabolic concern. Keep exercise appropriate for the horse's soundness and veterinary advice; movement can be helpful for some horses, but it is not a treatment to force on a painful horse.
Review the whole ration whenever pasture changes. Include treats, feeds given by other family members and the calories hidden in “just a handful”. Check body condition at consistent intervals, keep a record of turnout and watch for changes after rain. Some owners find a track or sacrifice area makes the system easier, while others need a seasonal turnout schedule shaped by local pasture testing and professional advice.
Good stable preparation helps too. Keep suitable forage available, make sure water is accessible and have your veterinarian's contact details easy to find. If your horse also needs seasonal grooming essentials, horse rugs or horse boots, those are useful care categories to organise, but none of them prevents laminitis on its own.
Frequently Asked Questions
Is all spring grass dangerous for horses?
No. Risk depends on the pasture, weather, growth stage, intake and individual horse. Spring growth can increase risk for susceptible horses, but it is not accurate to label every Australian spring paddock dangerous.
Is morning turnout always safest?
No fixed grazing time is safe for every paddock or horse. NSC patterns vary with local conditions, weather and plant stress, so use professional advice or pasture testing rather than relying on a universal clock rule.
Can a grazing muzzle prevent laminitis?
A correctly fitted muzzle may help reduce intake for some horses, but it is not a guarantee. It needs monitoring, water access, a safe fit and veterinary or experienced professional guidance.
Should I stop feeding hay to a horse at risk?
Do not suddenly starve a horse. Keep forage available and ask your veterinarian or equine nutritionist how to manage the total ration and carbohydrate intake safely.
What should I do if my horse feels foot-sore?
Remove access to the suspected feed or pasture, keep the horse quiet on supportive footing if safe, and call a veterinarian immediately. Do not force exercise or prescribe home treatment.
Can supplements prevent pasture laminitis?
No supplement can guarantee prevention or replace pasture and body-condition management. Discuss any supplement with a veterinarian or nutritionist, especially if your horse has metabolic disease or a previous episode.
Can a horse return to unrestricted pasture after laminitis?
Do not assume so. Recurrence risk is higher after a previous episode, and turnout, forage and exercise need an individual plan supervised by your veterinarian and farrier.
Build a calmer spring-care routine
Keep pasture management at the centre of your plan, then organise the everyday care essentials that support your horse through changing weather. Browse horse health, supplements and grooming brushes, and speak with your veterinarian before making major feeding changes.
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