Vetch

Nitrogen-fixing groundcover and green manure crop excellent for orchard understories and vegetable garden rotation. Self-sows readily creating living mulch between rows. Climbing habit useful for vertical gardening on trellises. Attracts beneficial insects when flowering.

Young shoots and leaves edible when cooked thoroughly (contains toxins when raw). Seeds must be soaked and cooked well before consumption. Contains L-canavanine requiring proper preparation. Not recommended for regular consumption due to potential neurotoxic effects from improper preparation.

Young pods can be eaten like snap peas when very small. Mature seeds require extensive soaking and boiling to neutralize toxins - used historically as emergency food or animal feed. Generally considered inferior to other legumes for human consumption.

Important nitrogen-fixer through rhizobial root nodules, adding 50-150 kg N/ha to soil. Provides nectar for bees and beneficial wasps. Seeds eaten by birds and small mammals. Dense growth suppresses weeds effectively. Deep taproot breaks up compacted soils.

Annual climbing/scrambling legume to 1m tall with pinnate leaves ending in branched tendrils. Leaflets in 3-8 pairs. Flowers purple-pink, rarely white, 10-30mm long, solitary or paired in leaf axils. Pods brown when ripe, 3-7cm long. Seeds round, brown to black.

Not applicable for timber use. Dried vines occasionally used in traditional thatching or as kindling. Sometimes woven into temporary garden structures when fresh and pliable.

Cultivated since Neolithic times as one of humanity's oldest crops. Name vetch derives from Latin vincire meaning to bind referring to its climbing habit. Used in medieval times to predict weather - flowers close before rain.