Welsh Bunching Onion Seeds (Aimers International) Heirloom Vegetable. Variety originated in Russia. A very hardy, non-bulbing, clump forming member of the onion family. Leaves grow to 30 cm (12″) in height. The hollow tube-like leaves have an enticing onion flavour and aroma. Very important in Asian Cuisine. A reliable self-seeding biennial. Matures in 65 days.