
Cibols or Welsh Onions are rarely grown commercially in England (though relatively commonplace in France and parts of East Asia) but are readily available from specialist seed suppliers.
The name comes, not from Wales, but from the old English 'welisc' meaning 'unusual'.
'Gibbol' is a Somerset dialect name.
Known at least since 'The Vision of Piers Plowman' by William Langland, c1390 (Langland 1390) "Chibolles cheruelys, and ripe chiries monye."