Crambe maritima aka Sea Kale

Sea kale, scientifically known as Crambe maritima, is a halophytic flowering plant that thrives in coastal regions of mainland Europe and the British Isles. This robust herbaceous perennial can grow up to 75cm in height and forms clumps of large, lobed, wavy-edged blue-green leaves. In early summer, it produces dense racemes of small white flowers. Sea kale is related to cabbage and has been cultivated as a vegetable since the 18th century. The blanched stems of sea kale are commonly consumed and gained popularity in the mid-19th century. Despite its rarity as a houseplant, sea kale can be grown successfully with regular watering and ample direct light. It is best positioned within 1 foot of a window and belongs to the Crambe genus, native to Europe, Northern Africa, and Southwestern Asia.