Rotational grazing is one of those ideas that sounds like extra work but quickly pays you back. Instead of letting animals wander over the whole holding, you fence them into a smaller paddock, let them graze it down to your target height, then move them on. The grass behind them gets a rest, regrows stronger, and the livestock pick up fewer worms. On a smallholding, where every acre has to work hard, that matters.

Why set-stocking lets you down

When animals have the run of the whole place, they graze their favourite plants first. Over time, palatable species disappear, weeds move in, and bare patches appear. Continuous grazing also means livestock are constantly picking up worm larvae from fresh dung pats. Rotational grazing breaks that cycle by moving animals away before larvae climb the grass blades in numbers. It also gives your best grasses a chance to set seed and spread, rather than being nibbled to the bone.

The old saying “graze half, leave half” is a good guide. If you take too much leaf, the plant has to draw on root reserves to regrow. Do that repeatedly and the sward thins out. Rest is not a luxury – it is the engine of the whole system.

Reading the sward: how low and how long

Grass needs leaf area to photosynthesise and rebuild roots. Your job is to move animals before they graze below the recovery point, and to bring them back only when the sward has recovered. Exact heights vary with species and season, but these targets are a practical starting point:

• Sheep: move on at 4–6 cm, rest until 8–10 cm.
• Cattle: graze down to 8–10 cm, rest until 15–20 cm.
• Horses and ponies: graze to 5–7 cm, rest until 10–12 cm.
• Poultry: not grazers in the same way, but rotating their range reduces mud and parasite build-up.

Rest periods change through the year. In spring, grass rockets away, so 18–21 days may be enough. In summer, when growth slows, stretch to 24–30 days. By autumn, aim for 30–40 days, and in winter, either rest paddocks completely or accept that recovery will take 60 days or more. A sward stick or plate meter takes the guesswork out of it. Walk your paddocks weekly and write down what you see.

Setting up paddocks without a fortune

You do not need permanent fences everywhere. Electric netting or a single polywire on pigtail posts is enough for most smallholdings. Start with four paddocks, then split further as you gain confidence. Water access is the usual limiting factor, so move troughs or create a central lane that serves several paddocks. Always use a back fence – a temporary strand behind the animals – to stop them returning to fresh regrowth.

Paddock size depends on stock numbers and grass growth, but aim for two to three days of grazing per move in spring, one to two days in summer, and three to five days in winter. A simple notebook or chalkboard in the feed shed keeps you honest. If you are new to it, err on the side of moving too often rather than too little.

Worm control that actually works

Rotational grazing alone will not solve worms, but it is a powerful tool. Most gut worm larvae climb only the bottom few centimetres of grass, so moving animals onto longer, rested swards reduces the dose they take in. Clean grazing for youngstock is especially valuable: graze lambs or calves first on a rested paddock, then follow with older, more resistant animals. This is sometimes called leader-follower grazing.

Keep a faecal egg count routine going every four to six weeks during the grazing season. It tells you whether you have a problem before you see scours or poor growth. Avoid drenching on a fixed calendar; instead, treat only when counts or condition justify it, and use a quarantine dose for any new animals. Rotating species – cattle after sheep, horses after cattle – helps break worm life cycles because many parasites are host-specific. Do not forget that wet, poached areas are worm nurseries, so keep animals moving off them.

Seasonal rhythm and fine-tuning

Spring is about keeping up with growth. Move fast, do not let paddocks get ahead of you, and consider making hay or silage from surplus grass. Summer is when overgrazing does the most damage. If growth stalls, lengthen rests and reduce stock numbers, even temporarily. Autumn is your chance to build grass cover for winter – do not graze below 5 cm, and leave the longest paddocks for the coldest months.

Winter on heavy clay is all about poaching. A sacrifice paddock or a hardstanding area keeps the rest of the farm tidy. If you outwinter animals, accept that those paddocks will need reseeding in spring. Walk the farm after every grazing round and look for bare ground, weed patches, and dung that is not breaking down. Adjust your moves before problems become obvious.

Common mistakes to avoid

• Moving too slowly – grass gets grazed twice before it has recovered.
• Ignoring water – animals will not graze evenly if the trough is stuck in one corner.
• Letting paddocks get too long – rank grass suppresses clover and new growth; top it or cut it for hay.
• Using the same moves every year – hot spots for worms and weeds build up.
• No back fence – animals nibble regrowth and undo the rest period.

Start small, keep records, and be flexible. Your pasture will tell you if it is working: a denser sward, fewer bare patches, more clover and herbs, and livestock that grow well without constant drenching. That is the quiet reward of rotational grazing – healthier grass, healthier animals, and a holding that gives more back each year.