Barenbrug Herbal Leys

Blends to boost biodiversity. As well as breeding and trialing grass varieties, we create and trial biodiversity mixtures at our trial site, Cropvale, looking to find the next generation of ‘herbal ley’.

The aim of our biodiversity trials is to come up with an optimum blend of legumes, herbs and grasses, which will be suitable for a wide range of farms throughout the UK. With blends that will produce large volumes of high quality forage, for livestock farmers to increase meat and milk yields, and blends to enhance farm biodiversity. Including legumes in a biodiversity blend is one way to achieve this. Legumes have great nitrogen (N) fixing potential, which means less artificial nitrogen needs to be added to the soil to grow the crops. Deep-rooted species are also employed to improve soil structure while flowering species are utilised to help pollinating insects do their job. Due to the nature of the species involved, weed control in our biodiversity trials is very limited so we score the plots for their natural weed suppression abilities, which will add to the persistency and quality of a mixture in the field. The following are our top performing herbal ley mixtures. View our forage mixtures or wildflower mixutres.

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Plantain: Tonic

Boost summer milk production & finish lambs

Suited to many soil types. Can increase daily intakes during the summer.

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Chicory Commander

A true perennial chicory that lasts more than one year

A mineral rich herb with long taproot capability, aiding drainage and crop root development, making an ideal cover crop.

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An excellent bio-diversity ley

A true multispecies legume, grass, wildflower and herb rich sward for increased biodiversity.


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Mixture including perennial ryegrasses, white clover, plantain and chicory.

Extends the shoulders of the grazing season whilst enhancing the yield and quality of the sward.

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Mix of chicory, white clover, red clover and plantain

A blend of herb, clover and plantain designed specifically for grazing all classes of livestock and can be used as an addition to grazing swards.

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Low input, high output for beef & sheep

A highly successful, persistent, drought tolerant, protein-rich sward for beef and sheep production from a clover-based sward.

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