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.


Long-term, low input, high output mix for beef & sheep enterprises

  • A highly successful, persistent, drought tolerant, high protein sward for beef and sheep production from a clover-based sward
  • BARMIX uses the best new soft-leaved cocksfoot and tall fescues to produce a highly palatable, very productive ley
  • As a result it produces considerably more grass than conventional ryegrass leys especially under low fertiliser usage


  • This innovative mixture has been developed by us to offer an alternative mixture for beef and sheep enterprises looking for a low input, high output mixture
  • The ryegrasses in the sward are highly productive, contributing to the total performance
  • Intensiv (cocksfoot), Barelite and Barolex (tall fescues) are proven in on-farm grazing trials to be highly palatable due to their soft leaves
  • Tall fescue is a winter active species and cocksfoot grows earlier in the spring than other species, delivering that vital early bit for lambing
  • Tall fescues Barelite and Barolex add excellent drought tolerance due to their deep rooted, persistent nature. They are also more tolerant of waterlogged soils



Sow when soil temperature is above 8°C. The mixture has been designed to deliver exceptional late winter and early spring growth.


This mixture has a lower proportion of ryegrass, so will thrive on more marginal land and under a clover only or very low nitrogen system.



Produces exceptional silage cuts of extremely nutritious forage.


BARMIX can be shut off mid season for a big bale silage cut or can be grazed all year.



This mixture can be grazed all year.


Tall fescue and cocksfoot grow very rapidly, particularly in early spring, so to maintain the sward in its optimum condition, it's strongly recommended to tightly graze the sward from late winter.


This stops the grass becoming too strong, ensuring it remains highly palatable to grazing animals or giving the best combination of quality and quantity when conserved.


Intermediate perennial ryegrass (DIP)
Late perennial ryegrass (TET)
Tall fescue
Tall fescue
White clover blend
Sowing rate/acre
14kg per acre
Sowing rate /m²
2,814 seeds /m²
Diverse range

Discover our range of mixtures for environmental, bio-diversity, game cover and stewardship schemes.



Discover our range of mixtures for environmental, bio-diversity, game cover and stewardship schemes.



Discover our range of mixtures for environmental, bio-diversity, game cover and stewardship schemes.