Allium 'Caeruleum'
Allium caeruleum produces spherical clusters of starry, intense blue flowers atop slender stems in early summer, ideal for borders.
Sun: Full Sun.
Soil: Well-drained.
Hardiness: H5 — down to −15°C.
Allium caeruleum produces spherical clusters of starry, intense blue flowers atop slender stems in early summer, ideal for borders.
Sun: Full Sun.
Soil: Well-drained.
Hardiness: H5 — down to −15°C.