SEED SAVING ONIONS
I wish to save onion ‘Rose de Roscoff’ and leek ‘Bleu de Solaise’ seeds as they are hard to come by. Will they crossbreed – do I have to keep them separate?
Rob Hutt, Lincolnshire
Onions () and leeks () will not cross-pollinate. The flowers of both are also self fertile, so it is unlikely that your crops will cross with other leek or onion crops in the vicinity unless they are close to or surrounded by similar crops (such as an