Crambe hispanica subsp. glabrata, commonly known as Greater Sea-Kale, is a perennial herb native to coastal areas, cliffs, and dunes of the Iberian Peninsula and Morocco. It typically grows to a height of 2-4 feet (0.6-1.2 meters) and a width of 2-3 feet (0.6-0.9 meters). Greater Sea-Kale has a robust, clumping form with large, wavy-edged, blue-green leaves that are ornamental in their own right. From late spring to early summer, it produces tall spikes of fragrant, white flowers that are highly attractive to pollinators.

This plant is valued for its drought tolerance and its ability to thrive in poor, well-drained soils, making it suitable for xeriscaping and coastal gardens. It is also used as an ornamental in borders and as a foliage contrast in mixed plantings. Greater Sea-Kale requires full sun exposure and can tolerate a range of soil drainage conditions, from slow to fast. While it is generally low-maintenance, it may need protection from slugs and snails, which find its leaves appetizing. It is not commonly associated with serious diseases or pests.CC BY-SA 4.0