garden bed with artichoke plants in garden in Lombardy in winter season Stock Photo Alamy Plant or animal? (Or: Don't try this at home!) Darwin Correspondence Project Star Of David Flower. . . Image: Nerium oleander flower. Native to the Mediterranean region, Iran, the Indian subcontinent and southern China. The ice plant is a unique vegetable. Tiny crystalline beads of bladder cells filled with saltwater cover its stems and leaves, which not only makes the ice plant a lovely decorative succulent but Degrees and Programs: Horticulture CALS