Considered a "special lemon" by many, the Interdonato lemon has a stretched shape with long points at the end. It's a graft, or the result of attaching a twig or bud from one plant to another, between cedar and an "ariddaru" lemon, which is a popular Sicilian variety (via Milazzo Flora). Of all the Italian varieties, Interdonato lemons are the earliest, as they're produced in the fall and early winter. However, the trees do not respond well to forceful growth, so they are really only grown for that early production, notes Citrus Variety.