A Versatile Onion
Welsh Onions are an interesting addition to the plot and, once established , they tend to look after themselves. I have mine growing next on a small bed near to the shed. They self seed prolifically, and I have also collected the seed to enable me to stagger the growth.
They may be used as salad onions when small, or equally the foliage is a tasty alternative to chives and can be similarly chopped into a salad. It took a few years to establish this degree of growth. If there are large clumps they should be divided into smaller ones, which also propagates them and adds to those developing from seeds.