Globemaster Allium is an ornamental onion of enormous proportions! The perfectly shaped amethyst spheres measure 8-10" in diameter and add a tremendous visual impact to the garden. For the most eye-catching displays, group the bulbs together among low-growing perennials. Blooms in early summer.
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Perennial, zones 5-10
Bulb Planting Depth: 6-8”
Spacing: 1 bulb per square foot, 8-12” apart
Light Needs: Full sun
Soil Needs: Average to Fertile, well-drained
Bloom Time: Early summer
Uses: Flower beds, containers, borders, background plant, cut flowers, attracts pollinators, deer resistant
Care: Amend soil with compost before planting bulbs. Feed with a granular flower bulb fertilizer at planting time and/or in the spring when the leaves emerge. Leaves wither and die as they bloom. Will produce small bulbs, “offsets” that can be divided from the main bulb and transplanted after a few growing seasons.