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Helichrysum orientale is a perennial from the Asteraceae family, native to the eastern Mediterranean basin, the Greek islands, and the coasts of Turkey, where it grows on maritime cliffs, dry rocks, and coastal garrigues exposed to full sun. It belongs to the same group as the Italian everlasting, from which it is distinguished by its more ample habit and particularly bright blue-grey foliage.
It forms a dense and spreading hemispherical bush, reaching 40 to 60 cm in height and more in width on older specimens. The stems are numerous, branched, covered with a white tomentum that gives them a very marked silver-grey to blue-grey color, an immediately recognizable characteristic even outside of flowering. The leaves are narrow, linear to spatulate, tightly arranged along the stems in an almost star-like arrangement.
The capitula, small and globular, are grouped in dense and rounded corymbs, first cream-white, then bright yellow at full anthesis, borne on long erect floral stems that rise above the foliage and give the plant in bloom an airy and abundant silhouette. In its natural habitat, flowering extends from May to July. In cultivation, it generally occurs from May to June depending on exposure and climate.
The species is sensitive to prolonged frost and hardly tolerates temperatures below -5 to -8°C, especially in wet soil. In climates with cold and rainy winters, pot cultivation with wintering in a cold and well-ventilated shelter is recommended. It requires a very draining, poor, mineral substrate, and full sun exposure. Summer drought suits it perfectly; stagnant moisture in winter is its main threat. A light pruning after flowering maintains the compactness of the bush.