Traunfeld, JonSmetana, JeanineNixon, BobYen, PeggyAlso known by the names Silverbeet, Perpetual Spinach, Spinach Beet, Crab Beet, Seakale Beet, and Mangold, Beta vulgaris var. cicla is a cultivated descendant of the sea beet, Beta vulgaris subsp. maritima. This publication describes the general history and use of swiss chard and provides general instruction for planting, cultivation, harvesting, and storage.en-USOther