How to Grow Egyptian Onion
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Egyptian Onion
Allium x proliferum
vegetableEgyptian onions, also called walking onions or tree onions, are a unique perennial allium that produces clusters of small bulblets at the top of tall stems instead of underground bulbs. These top-set bulblets can be harvested, planted, or left to fall and 'walk' across the garden as they root and create new plants. They're prized by gardeners for their novelty, productivity, and ability to self-propagate.
When should you plant Egyptian Onion in your zone?
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Example Egyptian Onion timeline · Pittsburgh, PA (Zone 6b)
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Plant Egyptian Onion
Around Apr 17Near Pittsburgh's average last spring frost.
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Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
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Harvest Egyptian Onion
Around Aug 15≈ 120 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Egyptian Onion dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Zones 3-9; hardy perennials that thrive in cool to temperate climates
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Establishment
3-4 weeksNewly planted bulblets develop roots and send up initial shoots. Small green leaves emerge from soil.
Keep soil evenly moist. Remove any diseased bulblets. Ensure good drainage to prevent rot.
Bulblet Formation
4-6 weeksStems reach 2-4 feet tall. Clusters of small bulblets form at the stem tips, initially green then papery brown as they mature.
Stakes or supports may be needed to prevent toppling in wind. Stop heavy watering to encourage bulblet maturation. Avoid excessive nitrogen.
Bulblet Maturation
2-3 weeksAerial bulblets become papery and woody, ready to harvest. They may be 1-2 cm diameter with dried outer layers.
Water minimally. Do not fertilize. Allow bulblets to fully dry on the stem for better storage and propagation.
Dormancy/Regrowth
Fall through early springAfter harvest, plants die back in late summer/fall. Underground bulbs survive winter and regrow in spring.
Cut back dead foliage. Reduce watering significantly. Apply light mulch in cold zones. Plants will return year after year.
Common Pests
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Use fine row covers over young plants. Remove infected bulbs immediately. Rotate planting location yearly. Diatomaceous earth around base.
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Spray with water to dislodge. Use neem oil or insecticidal soap. Remove heavily infested foliage.
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Increase humidity with regular misting. Prune affected leaves. Use miticide if severe.
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Remove diseased bulbs immediately. Avoid overhead watering. Ensure excellent drainage. Do not replant onions in same location for 3+ years.
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and
Hand-pick in early morning or evening. Use copper tape barriers. Apply nematodes or beer traps.
Uses
Mild Onion Flavor
CulinaryBoth the aerial and underground bulblets have a mild, sweet onion flavor suitable for eating fresh, roasting, or pickling. They can substitute for pearl onions or shallots in cooking. [source]
Vegetable Greens
CulinaryThe tender young leaves can be harvested and used like scallions or chives, adding a mild onion flavor to salads and cooked dishes. [source]
Self-Propagating Perennial
HouseholdEgyptian onions are a low-maintenance, self-renewing crop that can provide harvests year after year with minimal replanting effort. The bulblets naturally propagate and 'walk' across garden beds. [source]
Immune Support
MedicinalLike other onions, Egyptian onions contain sulfur compounds including allicin, traditionally used to support immune health and general wellness. [source]
Pollinator Attraction
WildlifeThe tall, flowering stems attract bees and other beneficial pollinators to the garden, supporting ecosystem health while providing garden interest. [source]
This is not medical advice. LizPlants is not a medical resource. Always consult a qualified healthcare professional before using plants medicinally.
Harvest Tips
Harvest mature bulblets when they are papery and dry, typically in mid to late summer (July-August in Northern Hemisphere). Twist or gently pull bulblets from the stem. Store in a cool, dry place with good air circulation. They can be used immediately for eating or saved for replanting in fall or early spring. The small underground bulbs can also be dug up as a bonus harvest in late fall.
Fun Facts
- 🌱 Egyptian onions are called 'walking onions' because the weight of the aerial bulblets causes mature stems to bend over, and when the bulblets fall and root they create a new plant several inches away, appearing to 'walk' across the garden over successive seasons.
- 🌱 Unlike most onions, Egyptian onions are perennial and can produce harvests for 5-10+ years from a single planting, making them an excellent permaculture crop.
- 🌱 The exact origin of Egyptian onions is mysterious—they were likely developed from a mutation of common onions and have been grown in Mediterranean regions, North Africa, and the Middle East for centuries, though their true birthplace remains unknown.
Gardening Terms
New to gardening? Learn about terms used in this guide:
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