Why Set Stocking Wears Out Pasture

Most smallholdings begin the same way: a field, a few animals, and a gate you open every morning. It works beautifully for the first season. By the second, you notice bare patches around the gateway and the water trough, rank tufts of grass the ponies refuse to touch, and docks and nettles creeping in where nothing else will grow. That is set stocking in action. Left to themselves, animals graze the same sweet, short, young grass over and over, and those plants never get long enough to rebuild their root reserves. They weaken, thin out, and surrender the ground to weeds.

Rotational grazing is simply deciding that you will choose where the animals graze, and for how long. You move them through a series of smaller paddocks, giving each one a proper rest before it is grazed again. The benefits compound: deeper roots, more earthworms and dung beetles, better resilience to both drought and deluge, and livestock that hold condition on less bought-in feed.

Planning Your Paddocks

You do not need a perfect system to start. Four paddocks is enough to see a difference in your first year, and six to eight is better. Divide your field with electric fencing — a good 12-volt energiser, polywire and lightweight pigtail posts will do the job and can be moved as the season shifts. On a permanent layout, use post-and-wire along the main divisions and keep internal fences temporary so you can adapt.

Aim to graze each paddock down to about 5–7cm and no lower, then move on. If you can, let the grass reach 15–20cm before you turn animals in. That balance matters more than any clever formula. As a rough rule of thumb in full spring growth, an acre of decent pasture will carry about five ewes for a week, or a couple of store cattle. Watch and adjust rather than trusting the figure blindly.

Water, Gateways and Handling

The system only works if moving animals is quick and stress-free for everyone, including you. Plan for that before you buy a single post.

• Water in every paddock. Mobile troughs fed from a hose or an IBC on a trailer save enormous effort. If you can, put the trough at the far end from the gate so animals graze more evenly rather than camping near the entrance.
• One lane, many gates. A central track with gates into each paddock means you can shift stock in minutes. It also lets you shut off a paddock to rest it or cut hay from it.
• Shade and shelter. On hot days animals bunch in the shade and overgraze it. A hedge, a few standard trees or a simple field shelter spreads the pressure.
• Back fencing. Once animals have moved on, close the fence behind them so they cannot graze the regrowth. This single habit makes the biggest difference to recovery.

Rest Periods Are the Whole Point

Rest is not a fixed number of days — it is however long your grass needs to recover, and that changes through the year. In the spring flush, when growth is explosive, three weeks is often plenty. By midsummer, expect 30–40 days. In late autumn and winter, when growth has effectively stopped, you may need 60–90 days or more, or you simply accept that the ground will be poached and stand animals off on a sacrifice paddock, a hardstanding area or in a barn.

The best guide is to look down, not at the calendar. Grass should be leafy and knee-high before you graze it, and left with enough leaf to photosynthesise. If you can see bare soil between plants after a paddock has been grazed, you have pushed it too hard and need a longer rest next time. Move animals faster in a growth spurt and slower in a slump.

There is a useful side effect of grazing tightly and moving on: livestock trample what they do not eat into the soil surface, which feeds the biology underneath and helps build organic matter. Thin, overgrazed pasture does the opposite.

Breaking the Worm Cycle

Most gutworm larvae do not live on the grass plant itself — they crawl up the blades from the dung pat, and the vast majority sit in the bottom 5cm of growth. That single fact explains a great deal about parasite control.

If you graze paddocks down to the soil, animals pick up every larva going. If you keep a reasonable residual height and then rest the paddock for three to four weeks in warm, damp weather, a large proportion of those larvae die before stock return. In a wet UK autumn, larvae can survive far longer, so autumn grazing is the highest-risk period. Rotational grazing reduces the challenge but does not eliminate it — you will still need faecal egg counts, careful use of any wormer, and clean grazing for youngstock.

Mixed grazing is a powerful ally. Cattle and horses do not share the same worm species as sheep, so running them in sequence through the same paddocks cleans the pasture for the other species. Poultry following sheep or cattle will also scatter dung pats and peck out larvae, provided they are moved regularly. Avoid grazing young, vulnerable animals on ground just vacated by their own kind, and never graze below 5cm with lambs.

Starting Small and Adjusting

Begin with a simple plan and a notebook. Record which paddock was grazed, the date stock moved on, and roughly how long the grass was when they went in and came out. Within a season you will see your own pattern: which paddocks recover fastest, where the wet corners poach, and how much longer everything needs in July compared with May.

Rotational grazing rewards observation more than equipment. Even four paddocks and a decent energiser will transform a tired field within a year, and the improvements to soil, sward and animal health only build from there.