‘White Summer Calvill’
The origins of this very ancient cultivar are lost in the mists of time. One version is, that it originated in France in 17th or 18th century and was then called ‘Passe Pomme Blanche’. But it is just one of the possibilities. The cultivar is winter-hardy, and its trees are still growing in some old Latvian orchards. By the end of 19th century it had completely lost competition with ‘White Transparent’ (known also as ‘Baltais Dzidrais’ in Latvian,’Klarapfel’ in German, ‘Papirovka’ in Russian, etc.) The old ‘White Summer Calvill’ ripens slightly later than it, its fruits are various in shape, oblong or roundish. It can be distinguished from other white summer apples by the strong russet at stalk. The tree are large, upright, and the yields are rather low. The cultivar is tolerant to canker, but susceptible to scab.