Walking onion
Walking onion: Sowing, planting and harvest calendar
The walking onion, Allium × proliferum, is a perennial onion in the Amaryllidaceae family. This hybrid combines the cultivated onion, Allium cepa, with the Welsh onion, Allium fistulosum. Its most distinctive feature is the cluster of small aerial bulbils, or topsets, carried at the top of its stalks. This unusual outline gives it a particular place among kitchen garden vegetables, where it can remain for several years as a clump.Its green leaves are long and hollow, with the familiar appearance of onion foliage. Underground bulbs and aerial bulbils are different organs. The former make up the base of the plants, while the latter resemble small onions grouped above the leaves. Their size and the colour of their outer skins vary with the selection and the plant’s development. Bulbils are not seeds produced for conventional seed sowing.When stalks bend under their weight, the bulbils can reach the soil, take root and…