How to Grow Yellow Egyptian Onion
Wikimedia Commons
Yellow Egyptian Onion
Allium cepa var. aggregatum
vegetableThe Yellow Egyptian Onion, also called Top-Setting Onion or Walking Onion, is a unique perennial multiplier onion that produces small bulblets in place of flowers at the top of tall stalks. These aerial bulblets can be replanted to create new plants, causing the patch to seemingly "walk" across the garden over seasons. It's prized for its long storage life, mild flavor, and ability to self-perpetuate without replanting.
When should you plant Yellow Egyptian Onion in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Yellow Egyptian Onion timeline · Pittsburgh, PA (Zone 6b)
-
Plant Yellow Egyptian Onion
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Yellow Egyptian Onion
Around Aug 15≈ 120 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Yellow Egyptian Onion dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives in zones 3-9, with best performance in zones 4-7
Sign up free to see if Yellow Egyptian Onion grows in your zone — and get a personalized planting timeline.
Get my Yellow Egyptian Onion timeline →Growth Stages
Establishment
3-4 weeksSmall sets or bulblets develop initial roots and shoots; foliage emerges slowly
Keep soil consistently moist; protect from heavy rain or waterlogging; ensure good drainage to prevent rot
Vegetative Growth
6-8 weeksLong, slender green foliage develops; underground bulb begins to form and enlarge
Apply balanced fertilizer every 3-4 weeks; maintain steady moisture; remove any flower stalks that form on base bulbs; keep weed-free
Aerial Bulblet Formation
4-6 weeksTall flower stalk emerges and produces clusters of small bulblets at the top instead of flowers; base bulb continues enlarging
Support tall stalks with stakes if heavy winds likely; reduce nitrogen fertilizer to encourage bulb maturation; bulblets are ready when papery and darkening
Maturation
2-3 weeksFoliage yellows and begins to dry down; base bulbs enlarge and develop papery outer skin; aerial bulblets become firm and brown-skinned
Stop watering as foliage dies back; allow plants to dry thoroughly; bulblets may drop naturally from stalk when fully mature
Harvest & Storage
Harvest readinessBase bulbs are fully cured with brown, papery skins; aerial bulblets are dark and ready for replanting or storage; foliage completely dried
Harvest when foliage 50-75% brown; cure for 2-3 weeks in dry, airy location; store in cool (32-40°F), dry conditions; plant aerial bulblets immediately or store for spring
Common Pests
-
Use floating row covers over young plants; remove infested bulbs; crop rotation; neem oil spray for larvae
-
Spray with insecticidal soap or neem oil; increase humidity and water pressure sprays; reflective mulches; encourage beneficial insects
-
and
(Ditylenchus dipsaci)
Use nematode-free sets; hot water treatment of sets (43.3°C/110°F for 3 hours); crop rotation; solarization of soil
-
Remove infected plants immediately; improve drainage; avoid planting in same spot for 6+ years; use fungicide if available; crop rotation
Uses
Mild Cooking Onion
CulinaryYellow Egyptian onions have a mild, slightly sweet flavor ideal for roasting, soups, stews, and caramelizing. Both base bulbs and smaller aerial bulblets can be used fresh or cooked. [source]
Pickling & Preserving
CulinaryThe small aerial bulblets are excellent for pickling whole due to their uniform size and mild flavor. Pickled Egyptian onions store well and add interest to charcuterie boards and relishes. [source]
Self-Perpetuating Garden
HouseholdEgyptian onions are unique in their ability to self-propagate via aerial bulblets, allowing gardeners to expand the planting patch year after year with minimal effort or purchased seed. [source]
Traditional Health Properties
MedicinalLike other onions, Egyptian onions contain quercetin and sulfur compounds believed to support immune function and have anti-inflammatory properties in traditional herbalism. [source]
Pollinator Attraction
WildlifeWhen flowering does occur or aerial flowers develop, they attract bees and beneficial insects, adding to garden biodiversity and supporting pollinator populations. [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 base bulbs when foliage is 50-75% brown and papery, typically in summer. Gently lift bulbs and cure in a warm (70-80°F), dry, well-ventilated location for 2-3 weeks before storing. Aerial bulblets can be harvested when brown and papery (usually midsummer); they may drop naturally. Replant bulblets in fall (zones 3-7) or spring (zones 8+) at proper depth. Store cured bulbs in cool (32-40°F), dry conditions; they keep 6-8 months or longer.
Fun Facts
- 🌱 Egyptian onions earned the nickname 'Walking Onion' because as the heavy aerial bulblets bend the stalk down and root, the plant gradually migrates across the garden, creating the illusion of walking.
- 🌱 These onions have been cultivated since at least the 1700s and were traditionally grown by Native Americans and early settlers; they are also called 'Tree Onions' because of their aerial bulblets.
- 🌱 Unlike most onion varieties, Egyptian onions are true perennials that can live and produce for many years in the same spot with minimal maintenance, making them an heirloom favorite for permaculture gardens.
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Yellow Egyptian Onion planting timeline
Tell us your zip code and we'll calculate exactly when to start Yellow Egyptian Onion seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Yellow Egyptian Onion timeline →