Onosma arenaria is a clump-forming evergreen perennial from the genus Onosma, known for rosette-forming plants native to arid, rocky Mediterranean and western Asian regions. This alpine rockery plant thrives in full sun and well-drained soils such as chalk, loam, or sand, tolerating a range of soil pH from acid to alkaline. It is hardy to UK zone H4 and is suitable for rock gardens, gravel gardens, and informal or courtyard settings. The plant features slender, hairy green leaves and produces elongated, drooping tubular flowers in spring and summer.

Onosma arenaria is an evergreen alpine perennial ideal for rock and gravel gardens, flowering in spring and summer and thriving in full sun with RHS H4

Onosma arenaria

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