Egyptian Walking Onion (Allium × proliferum): Perennial Onion That Walks

Egyptian Walking Onion: The Self-Planting Perennial Allium

Egyptian walking onion (Allium × proliferum), also called tree onion, walking onion, or topset onion, is a unique perennial that produces clusters of small bulbils (topsets) at the top of its stalk instead of flowers. These bulbils eventually bend the stalk to the ground, root, and "walk" across the garden.

Botanical Profile

A hybrid of A. cepa (common onion) and A. fistulosum (Welsh onion), it grows 2–3 feet tall. The hollow leaves are edible like scallions. The underground bulb divides, and the topsets can be harvested for eating or replanting.

Culinary and Garden Uses

• Green onions: Harvest leaves anytime; mild onion flavor.
• Topsets: Pickle, roast, or use like pearl onions.
• Perennial vegetable: Once established, provides harvests for years.
• Curiosity: The "walking" habit delights children and gardeners.

Plant topsets or divisions in fall or spring. Full sun, well-drained soil. Very cold hardy. Allow some topsets to drop for natural increase. Hardy in USDA zones 3–10.