are hyacinth bean vines toxic to sheep? thank you

Question

considering planting these on fencing potentially accessed by sheep and cows.

Answer 1

It would appear that the seeds are pretty detrimental to their system, and should be avoided as feed, but the foliage is a wonderful supplement feed (at the cost of the plants life since they don't tolerate grazing well.)

This document offers detailed insight into this: https://agritrop.cirad.fr/582483/7/ID582483_ENG.pdf

Here is an article that will help you to grow Lablab beans: https://www.gardeningknowhow.com/ornamental/vines/hyacinth-bean/purple-hyacinth-bean-care.htm