The lemon 'Cerza' owes its name to the small hamlet Sicilian where it was discovered in 1987. This variety is very productive. It forms an erect tree with deep green foliage. Its branches are devoid of thorns and the young shoots, as well as the flowers, are delicately tinged with purple. The beautiful oval fruits, bright yellow when ripe, are medium in size and can be picked from late November. Their juicy flesh is very acidic and does not contain seeds. Suffering from the cold beyond -4 ° C, its open-air cultivation is reserved for regions with a mild climate; elsewhere, it is best grown in a large, winterized, frost-free container in a greenhouse or conservatory.