Gardening For Pleasure (1898)
Peter Henderson

Crystal White.—This seems, as Mr. Lovett says, "a veritable albino," a white Blackberry, a novelty as rare as a white crow or a white blackbird among birds. It is of clear, translucent white, very sweet and pleasant in flavor. Well worthy, from its novelty, of a place in the fruit garden. It is less hardy than the black kinds, requiring the same protection as raspberries.