Egyptian Walking Onion

A perennial onion that plants itself: instead of flowers it grows a cluster of little bulbs on top of the stalk, which tips over and roots where it lands. The earliest green onion of the year and close to indestructible.

Plant topsets an inch or two deep in fall, in a spot where a permanent colony is welcome; full sun, ordinary well-drained soil, no fuss after that.

You plant topsets, not seed — this is a sterile hybrid and it rarely sets true seed at all. Break a cluster into individual bulbils, push each one root-end down about an inch or two deep, and space them 6 to 12 inches apart. Late summer through fall is the right window across most of the country: the bulbils root before the ground freezes and go straight into growth as soon as winter loosens. Spring planting works too, but the first clump stays smaller and often makes no topsets until year two.

Give them full sun to part sun and ordinary, well-drained soil. They are genuinely unfussy about fertility — rich ground makes fatter greens, lean ground still works — but they will rot in a wet, heavy spot, which is about the only way to lose them. The one decision worth making carefully is where. This is a permanent plant that moves a little each year, so put it at the edge of a bed, along a fence or path, or in the herb and perennial ground rather than in the middle of an annual rotation you will want to dig and till.

Weed it, water in a real drought, and divide congested clumps every two or three years. The only ongoing decision is how far you let it walk.

The care list is short enough to be suspicious of. Weed the patch in early spring before the onions close over, pulling rather than hoeing so you do not slice the shallow bulbs. Water in a genuine drought — drought makes the greens tough and sharp rather than killing anything. A single light nitrogen feed at green-up gives thicker, milder tops if you want them. That is the entire maintenance schedule.

Two jobs actually matter. First, divide every two or three years: clumps multiply underground until they strangle themselves, and a congested clump makes nothing but small bulbs and thin greens. Lift it in late summer, pull it apart, and replant single bulbs at proper spacing. Second, decide each June how far you want the patch to travel. Harvesting the topsets before the stalk bends keeps the clump exactly where you put it; letting the stalks fall gives you a free new colony a foot or two away. Neither is wrong — but if you never pick the topsets, do not be surprised by onions coming up where you did not plant them.

Cut greens like scallions from late winter on, snap off topsets when they turn papery bronze in early summer, and dig underground bulbs once the tops brown off.

Greens come first and last longest. Snip hollow green tops an inch or two above the base any time they are soft enough to bend — late winter through spring, again in fall, and right through winter in mild zones. Cut whole tops rather than tips, and take from around the outside of a clump so it keeps producing. They toughen once the flower stalk starts up, so early is best.

Topsets are ready in early summer, when the bulbils are firm and tight and their skins have gone papery and coppery-bronze — usually just as the stalk begins to lean. Cut the whole cluster with a few inches of stalk attached. Leave them much longer and the cluster shatters and plants itself. Underground bulbs are dug from midsummer once the tops have browned off; loosen with a fork, take what you want, and always leave at least one bulb per clump in the ground so the patch carries on without you.

Greens keep about a week in the fridge; cured topsets keep for months in a mesh bag and pickle brilliantly; underground bulbs cure and store like shallots.

Cut greens keep about a week loosely wrapped in the crisper, and chopped tops freeze well for cooking. But the real answer for greens is that the garden stores them better than you can — a hardy clump outdoors is a living supply you cut from as needed, which is most of the point of a perennial onion.

Topsets cure like miniature onions: spread the clusters somewhere dry and airy for a couple of weeks until the skins are crisp, then keep them in a mesh bag or open basket in a cool dry place, where they hold for several months before they start to sprout. A sprouting topset is not wasted — plant it. Underground bulbs cure the same way as shallots, two to three weeks until the necks are papery, and then keep three to six months. Do not seal any of them in plastic, and keep them out of the fridge unless already peeled.

Sharper than a supermarket onion in every part: greens as strong scallions, topsets pickled whole or roasted, underground bulbs used like small pungent shallots.

Expect real pungency. Walking onions are stronger than the mild green onions you buy, so use the greens the way you would scallions but with a lighter hand — scattered over eggs and potatoes, stirred into soups and stir-fries, chopped into butter or soft cheese. The very first spring cuttings are the mildest of the year.

The topsets are the fun part and the fiddly part. They are the size of a marble with a tight papery skin, and peeling a bowl of them is a job — drop them in boiling water for a few seconds and the skins slip off far more easily. Pickled whole in vinegar they make superb cocktail onions and the classic use for a big harvest; they are also excellent roasted whole alongside meat or potatoes, where they go sweet, or chopped small anywhere you want a hard onion punch. Underground bulbs behave like small, assertive shallots: fine sliced into dressings, good caramelized, and strong enough that a little goes a long way.

It propagates itself - that is the defining trick. Replant topsets, divide congested clumps, or simply let a stalk fall over and root where it lands.

There are three routes and all of them are free. Topsets are the main one: break a cluster apart and plant the bulbils, either fresh in summer or any time through fall. Big bulbils give big clumps faster; the tiny ones at the edge of a cluster still grow, just slower. Division is the second: lift a crowded clump in late summer, separate the underground bulbs, and replant them singly. This is maintenance and multiplication in one job.

The third route is to do nothing. Leave the topsets on the stalk, let it arch over under their weight, and they will root themselves exactly where they land — a new clump, at no cost and no effort, a step away from the parent. Because the plant is a sterile hybrid it almost never sets true seed, so every walking onion in cultivation descends by bulb from another one. That is why it travels garden to garden by the handful over the fence rather than by the seed packet, and why a clump given to you may be older than anyone can account for.

Zones 3-9: bulletproof and earliest-in-the-garden across the cold half of the country; in the warm South it grows through winter and sulks in summer.

Zones 3-5: the plant is in its element. Hardy to around -30°F, it dies back for winter and is the first edible green up in late winter or very early spring, often through snow. Mulch a first-year planting; after that, nothing. Zones 6-8: the easiest range of all — clumps stay green through much of the winter, greens are pickable in most months, and topsets come in early summer. Zone 9: workable but shifted. Treat fall through spring as the growing season, plant in late fall, and expect the patch to slow down or go dormant in summer heat. Zone 10 and warmer: not worth it. Without a real winter the clumps run down, topset production is unreliable, and a bunching onion or garlic chives will serve you better.

No topsets in year one is normal; onions appearing where you did not plant them is the plant working as designed; small bulbs mean a congested clump that needs dividing.

No topsets the first year: normal, especially from a spring planting or from small bulbils. The clump has to bulk up first; year two nearly always delivers. Onions coming up where you never planted them: a stalk fell over and rooted its topsets. That is the plant working exactly as designed — harvest topsets earlier next year if you want it to stay put. Small bulbs, thin greens, a crowded-looking clump: congestion. Lift it in late summer, split it, and replant single bulbs at proper spacing. Greens tough and harshly sharp: heat, age, or drought — cut them younger and water in dry spells. Bulbs soft and rotting: almost always wet ground; move the patch somewhere with drainage. You want it gone and it keeps coming back: every bulbil and every missed underground bulb regrows, so clearing a patch means digging and sifting the soil rather than pulling tops. Whole clumps yellowing and pulling free easily, with white fuzz and black specks at the base: white rot — see Threats, and take it seriously in a bed you cannot rotate.

Nothing to do with Egypt: a passed-over-the-fence heirloom onion that travelled Europe and North America by the handful, never by the seed packet.

The name is a historical mislabel. The plant is a hybrid of two Old World onions and has no documented Egyptian origin; the tag seems to have attached the way exotic-sounding names once got fixed to any plant that arrived through traders from the east, and it stuck. Older and plainer names describe it far better — tree onion, top onion, topsetting onion, winter onion — and all of them point at the same trick with the bulbs on the stalk.

Because it sets no seed, it has never been a commercial crop and has never come in a packet. Every clump alive today is a piece of another clump, handed from gardener to gardener as a fistful of topsets. It shows up in North American kitchen gardens through the nineteenth century and survives now largely through heirloom seed-saver networks and garden-fence generosity. If someone gives you a bag of topsets, you are being handed a genuinely old plant — one that has been kept going for generations purely because it is hardy, useful, and impossible to kill.