Linseed (Flax) Toxicity in Grazing Livestock over Cover Crops: Evidence and Considerations

Linseed (flax) can improve soil health and support pollinators when used in cover crop mixes, but it may pose a risk of hydrogen cyanide poisoning to sheep, especially after frost or when grazed in large amounts. This article explores the science behind this risk, practical management strategies, and best practices for safely including linseed in grazing systems. With careful planning, serious toxicity is uncommon.