Perennial culinary kitchen garden vegetable Description: Edible, bluish-green leaves emerge from the soil in early spring; showy, white, cruciform-shaped flowers developing by summer; attracts bees Habit: Foliage and dense flower clusters grow to 30 inches high and 24 inches wide Culture: Prefers light, mellow, well-drained garden loam and full sun Hardiness: Cold hardy to USDA Zone 6 Origin: Europe Attributes: Attracts bees Jefferson documentedThomas Jefferson first planted Sea Kale seed at Monticello in 1809 and continued cultivating this vegetable until 1822. Native to the seacoast of Great Britain, Western Europe, and the Black Sea, this hardy member of the cabbage family is grown for the early spring sprouts that arise from well-established plants (2 to 3 years old). The young leaves must be blanched, like celery or asparagus, to prevent a bitter flavour when cooked. In his 1815 Garden Calendar Jefferson recorded harvesting Sea Kale from April 1 to 28, but he was not using blanching pots until after 1821 when he ordered 500 "earthen pots for covering plants of Sea Kale" from a pottery near Richmond, VA.Sea Kale (Crambe maritima) arrives in a 1 gallon pot.
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