Globemaster Allium is an ornamental onion that forms perfectly round amethyst spheres 8-10 inches across on 36-40 inch stems. This Pinetree Garden Seeds fall bulb ships early to mid October for fall 2025 planting.
Sow bulbs 6-8 inches deep, 8-12 inches apart, about one per square foot in full sun and well-drained soil. Leaves emerge in spring and wither as the early summer bloom opens; group among low perennials for show.
