Blue Eddy Flowering Onion

Allium senescens ‘Blue Eddy’ is a compact ornamental onion selected for narrow, swirling blue-gray foliage and lilac-pink flowers. Its small clumps fit at the front of a border, along a path, or in a rock garden, where the distinctive leaves can be appreciated ([University of Wisconsin–Madison Extension](https://hort.extension.wisc.edu/articles/allium-senescens-ssp-glaucum/), [RHS](https://www.rhs.org.uk/plants/539577/allium-senescens-blue-eddy/details)). ## Form and season Wisconsin Extension describes the exact cultivar as 4–10 inches tall and wide, with compact growth and blue-gray swirled leaves. Its profile describes the wider Allium senescens subsp. glaucum group as flowering from late summer into early fall; local timing varies. Mark McDonough is identified as the ornamental Allium breeder who developed ‘Blue Eddy’. The cultivar's narrow, twisting foliage adds seasonal texture, while the lilac-pink umbels bring color near the end of summer. ## Growing conditions Grow in full sun for the best flowering; light shade is tolerated but can reduce bloom. The parent group grows in soils ranging from heavier clay to sandy loam and tolerates dry conditions once established. Wisconsin Extension lists hardiness zones 4a–8b. ## Maintenance Water while new plants establish, then provide supplemental water during prolonged dry periods. Divide crowded clumps in early spring or fall. Remove spent flower heads before seed develops if you want to limit self-seeding; division is the dependable way to preserve the cultivar's characteristic foliage pattern.