18/06/2026
Food for thought 🌾
Some interesting info re grazing regimes and how you might evaluate the grass that you graze.
When grass goes to seed, it channels its energy to the seed heads, which become highly concentrated with sugars. While the fibrous stems and leaves become lower in sugar and harder to digest, the seed heads are notably sweeter and can be a significant hazard for animals sensitive to high sugar diets.
Sugar Distribution in Mature GrassSeed Heads:
Energy and sugars are actively translocated to the seed heads to give new seeds the best chance of survival. This makes them very high in non-structural carbohydrates (NSC).Stalks and Leaves: As the grass matures and becomes stalky, the sugar content in the leafy parts of the plant drops, but it becomes higher in indigestible fiber (lignin).
The Base:
The bottom 2–3 inches of the grass plant store the most sugars and fructans, so overgrazing or eating the grass down to the "nub" increases sugar intake.
Why You Should Be Careful.
The high concentration of sugars in the seed heads can trigger health issues in sensitive grazers. According to community discussions on Horse and Hound Forums, the transition of sugars into seed heads—combined with leafy regrowth at the base of the pasture—creates a major risk factor for laminitis in horses and ponies.
How to Manage it.
If you are grazing sensitive animals on pastures that have gone to seed, you can reduce the risk by:
Topping the pasture: Mowing off the seed heads can significantly reduce the amount of concentrated sugar readily available to grazers.
Avoiding overgrazing: Ensure animals are not eating the pasture down to the soil level where sugars concentrate.
Grazing at the right time: Photosynthesis builds up sugars during the day, so turn-out is generally safer late at night or early in the morning when the plant is not photosynthesizing.