Rising Leeks: How To Develop Beautiful, Luscious Alliums

Have you ever tried rising leeks? Luscious and scrumptious, they’re on each superb chef’s menu someplace. Within the UK, they’re a staple of the day by day food regimen, they usually seem closely in Asian delicacies as effectively. Leeks are present in essentially the most elegant dishes and on the best eating places.

You’ll discover leeks rising within the best of gardens, too. Their onion-like taste is great for soups, roasts, risottos, stir fried, or in tarts. Harvesting leeks in summer season, fall, and typically winter is a celebration. Planting leek seedlings that develop into fully-formed stalks filled with taste is a reward in and of itself. 

At present, we take a look at the leek, discover among the range of this allium, and study the easiest way to domesticate these culinary delights. Leeks aren’t anyplace close to as intimidating as they seem, they usually’re effectively definitely worth the effort and time spent rising them!

Leeks: Fast Care Information

Homegrown leeks
Homegrown American Flag leeks. Supply: Lorin Nielsen
Frequent Identify Leeks
Scientific Identify Allium ampeloprasum
Days to Harvest 80-130 days
Gentle A fan of full solar
Water Persistently moist soil
Soil Nutritious, well-drained soil, nitrogen-rich
Fertilizer Compost-amended soil. May use fish emulsions or kelp-based liquid fertilizers, or a slow-release granular fertilizer.
Pests Leek moth, thrips, onion maggots
Ailments Leek rust, downy mildew, powdery mildew, white-tip illness, botrytis leaf blight

All About Leeks

Crosscut leeks
Crosscut leeks. Supply: dbnunley

By now, you’re in all probability asking precisely what’s a leek? The leek vegetable is part of the allium species of the Liliaceae household. This is similar household of vegetation that encompasses onions, garlic, chives, and plenty of others. Just like the onion, a leek grows in layers. It’s most much like the inexperienced onion in that regard. The place do leeks develop? That’s additionally a typical query. The leek has a protracted historical past.

Initially cultivated in central Asia, it unfold all through Europe because of its tasty nature. Eaten by the Egyptians and the Romans, it quickly established footholds in most cuisines of Europe and northern Africa. Later, it got here to the New World with the settlers, taking its place within the Americas. Scrumptious leeks have a subtler taste than the onion and are sometimes in comparison with scallions. Nonetheless, they’re milder than their extra pungent relations.

All leeks have shallow root methods and produce layers of inexperienced leaf plenty from a barely bulbous base. Like big scallions, their slender stems develop by delicate winters and are prepared for harvest in spring. If they’re left to bolt, they’ll produce a big globular flower, simply as onions or garlic would. These are an incredible attractant for bees. 

Really helpful Leek Varieties

Leek seedlings
Leek seedlings. Supply: eakspeasy

Whether or not you select to develop leeks from seed or through plugs, listed below are among the finest types of leeks to incorporate in your backyard this yr. Can’t resolve on which season to plant? Attempt the Autumn Big selection, a midseason leek that takes roughly 100 to 120 days to mature. 

Early Season Leeks

  • King Richard: 75 days. Very fashionable. Gentle inexperienced slender shafts. Tolerates gentle bouts of freezing temperatures. King Richard leeks are a extremely popular selection!
  • Hannibal: 75 days. Thick stalks which might be pure white, darkish inexperienced leaves.
  • Roxton: 85 days. Uniform stalks. Doesn’t bulb. Vibrant inexperienced leaves. It may be onerous to seek out.
  • Varna: 80 days. Lengthy, slender vegetation with shafts which might be usually harvested early for finest taste.
  • Megaton: 90 days. Bluish-green leaves. Thick leeks, similar to late-season varieties.
  • Daybreak Big: 98 days. Gigantic leeks! Usually used for competitors.
  • Pandora: 90 days. Very uniform, non-bulbing. Bluish-green leaves. 
  • Runner: 105 days. Deep bluish-green leaves, very erect, straightforward to domesticate.
  • Striker: 86 days. Very straightforward to scrub. Lengthy, thick shaft. Illness-resistant.

Late Season Leeks

  • American Flag: 105 days. Grows extraordinarily effectively. Frost-resistant pressure.
  • Lancelot: 95 days. Dependable and basic selection. Wealthy inexperienced leaves.
  • Surfer: 115 days. Illness and pest-resistant selection with clear white stalks. Blue-green leaves.
  • Bandit: 100 days. Extraordinarily cold-tolerant. Minimal bulbing.
  • Big Musselburgh: 105 days. Very previous selection. Tremendous-thick stems and cold-tolerant.
  • Blue Solaise: 110 days. French selection, leaves are darkish blue-green however flip purplish after a chilly snap.
  • Carentan: 130 days. Outdated European selection that’s rapidly changing into uncommon. Excessive yields, vigorous.
  • Jolant: 120 days. Winter-hardy selection with blue-green leaves and medium-sized stalks.
  • Tadorna: 110 days. Illness-resistant cultivar. Overwinters in all however the coldest places.

How To Plant Leeks

Young leeks growing
Younger leeks rising. Supply: mrvklaw

Plant quicker-growing, early-season leeks within the early spring for harvest within the late summer season or early fall. They’re usually smaller than late-season species and even milder in taste. Some folks use these to develop mini-leeks which might be utilized in meals. 

Late-season leeks are additionally planted in spring, however they’re harvested in late fall and even into winter. These take longer to develop. They’re additionally cold-hardy and considerably frost tolerant and deal with gradual temperature modifications. A couple of may be planted within the late spring for fall/winter harvest. Rising leeks in areas with delicate winters is feasible too. On this case, a fall planting is finest for an early spring harvest.

Plant leeks outdoor anytime after the final spring frost date has handed. Begin seeds indoors in late winter utilizing a seedling warmth mat and develop gentle. Direct sow leek seeds about 4 weeks earlier than the ultimate frost, and they’ll come up within the spring. Leek seeds don’t like deep plantings, and spring rains can wash the seed away. Use some type of cowl defending your backyard till the leeks have sprouted.

You may also develop leeks in containers. Area them out to permit their shallow root system to unfold. Plant leeks in clusters of not more than 2 to three vegetation. Skinny leek seedlings effectively after a thick direct seeding the place they’re sown densely. You’ll be able to germinate a number of vegetation in a single seedling starter tray. While you transplant seedlings, take those who produce clumps and gently separate their roots by swishing them in a bucket of water.

Make a 4 to 6-inch deep gap utilizing a shovel deal with or large stick. Gently set younger vegetation into it, ensuring the leaf suggestions are above the soil degree. Sprinkle a tiny dusting of soil round to cowl the basis. Don’t fill the outlet in fully, as nature can deal with that. Simply make sure the roots themselves are coated. 

For many vegetation, use the trenching technique. Make a protracted, deep trench within the floor or in raised beds. Place a leek in it and push sufficient soil to maintain the seedlings upright, masking the roots. Because the leek grows, push extra soil round it to maintain the stalk coated. Proceed including soil over time, holding the stalk coated to advertise blanching.

Caring for Leeks

Leek scapes
Leek scapes. Supply: kendura99

For essentially the most half, after you transplant leeks, they’ll care for themselves. Nonetheless, if you wish to have essentially the most flavorful stalks, right here’s the easiest way to make sure a tasty harvest.

Gentle and Temperature

Rising leeks in partial shade is right, however the leek may also deal with full solar simply superb. The stalk itself should be shielded from the brilliant daylight so it blanches. Whereas the perfect temperature is 60°F, and leeks choose delicate climates as a cool season crop, they’ll survive in heat climates too. In the event you develop leeks by a light-weight frost, that’s okay. They’ll deal with it. 

Most leek varieties tolerate warmth so long as they’ve loads of water. Lengthy-growing, cool-season varieties are considerably frost-tolerant too. In occasions when the bottom freezes or when the soil temperature could be very low, place a cloche or chilly body over the vegetation to maintain them protected. Frozen floor can freeze leeks, and frozen leeks tackle harm and aren’t edible. 

Water and Humidity

Rising leeks requires about an inch of water per week as soon as they’re established. Leek seedlings want a bit extra. Whereas leeks develop poorly in soggy soil, holding them persistently moist is right. Water leeks with soaker hoses for this function. You may also mound across the base of the plant with both soil or with mulch. This can assist the soil across the roots keep moist. So long as you’ve well-draining soil, you may water leeks usually, and in heat climates, you’ll wish to do that.

Soil for Leeks

Plant leeks in nitrogen-rich, lightly-packed soil that has a lot of natural matter. Nicely-drained soil is a should, and sandy soil filled with vitamins is right. Earlier than planting, loosen soil in your raised beds, containers, or backyard floor, and work compost by it to a depth of about 12 inches. 

If you wish to blanch the stalks naturally by beginning them deeper, amend the soil to 12 inches beneath the bottom level you intend to plant every leek seedling. This ensures the transplant leeks have loads of nutritious soil all through the rising season.

Fertilizing Leeks

Leek seedlings and mature leeks are heavy feeders, however they don’t want far more by the rising season than compost-enriched soil. Work compost into the bottom earlier than planting. Rising leeks with some blood meal or bone meal additionally helps leeks thrive. If you wish to use fertilizer, select a slow-release balanced granular fertilizer or water-soluble plant meals. You may also use a liquid fish emulsion or simply add extra compost often.

Propagating Leeks

Leek bulbils
Bulbils develop from the bottom of the dad or mum leek. Supply: Lorin Nielsen

Propagate leeks from seed or by bulbil. Leeks develop extra reliably from seed. Comply with the method to start out seeds indoors within the Planting part, and also you’ll develop leeks simply. Propagating by bulbils (typically known as pips) may be tough. First, your leek must be producing bulbils alongside the stalk, which may be onerous to determine whereas it’s within the floor. In the event you harvest a leek and discover some, attempt to replant them!

Fastidiously separate the bulbils from the mom stalk, then tuck the bottom gently into soil to root it. So long as the bulbil’s shoot is inexperienced, you’ve an opportunity of rising leeks which might be an actual clone of their mother and father. Re-plant leeks to encourage extra offspring. If a plant generates lots of bulbils, it might already be previous the edible stage. A plant with just a few bulbils shouldn’t have noticeable taste modifications.

Pruning and Coaching Leeks

You don’t need to prune while you’re rising leeks except you wish to. Some varieties, similar to American Flag, have edible greens which may be trimmed and utilized in cooking. When you’ve got a spread that doesn’t have bitter greens, trim the primary inexperienced leaf or two often for kitchen use. Don’t take greater than two or three leaves from a given leek throughout its development cycle, although!

While you develop leeks, mound soil across the vegetation to cowl the stalk as much as the bottom of the leaves. This naturally blanches the stalk and encourages it to develop taller. Double your efforts by planting your leeks in a trench or gap initially, then regularly improve the quantity of soil across the leeks.

Harvesting And Storing Leeks

A green-to-white rainbow of cut leeks
A green-to-white rainbow of lower leeks. Supply: sethoscope

In any case that ready by the rising season, you’ve a superb crop awaiting you! When to reap leeks may be onerous to resolve, however let’s go over every part you’ll have to know.

Harvesting Leeks

Relying on the range, harvest leeks on the finish of the rising season anyplace between 60 and 120 days after sowing seed or after you begin seeds indoors. Begin when the stalk of your leek is about an inch throughout. You’ll be able to harvest leeks (a summer season leek, for example) after they’re youthful than that, however you gained’t have as a lot produce, in fact! 

So long as the soil is free, grasp on the base of a leek and provides it a great tug. This can free the roots from the soil however might harm the outermost leaf layer. In the event you’re harvesting from heavier clay soil or wish to forestall harm, use a fork to loosen the soil round and beneath and dig leeks up. Shake or mud off as a lot soil as you may. Attempt to preserve the roots intact except you’ll use it instantly, as that helps it retailer longer.

Storing Leeks

You’ll be able to retailer leeks extremely effectively within the floor, so go away them in place till you want them. If you’ll overwinter leeks this manner, hill up the soil across the vegetation and canopy them with a thick layer of mulch to maintain the bottom of the plant heat and retailer it in place. 

Leeks, like most different onions, may be saved outdoors the fridge so long as they’re in a cool, dry place. Don’t wash them till you’re prepared to make use of them. As an alternative, mud off any soil remnants and let the outside dry. In optimum situations, they retailer this manner for as much as three months. In the event you’re utilizing your leeks quickly, retailer them within the fridge. Trim off the surplus greens and wrap every leek in plastic wrap, masking it fully. Place them in an hermetic plastic bag and use them inside two weeks. 

Leeks dry fairly effectively in a dehydrator. To arrange leeks for dehydrating, slice them finely, and wash them so you’ve clear leeks. Put them in a dehydrator set at 145 levels Fahrenheit till they’re crisp. Retailer them in an hermetic container out of direct gentle. In the event you’re storing for an extended time frame, add a moisture-absorbing packet to your leeks.


Leek harvest
Leek harvest. Supply: Muffet

Whereas rising leeks isn’t onerous, they do have some points and plant illnesses you want to pay attention to. Let’s speak about these now. 

Rising Issues

Some of the widespread issues that happens while you develop leeks is skinny or spindly development. The trigger is overcrowding. Leeks are heavy feeders, and too many in a single spot will trigger all of them to have issues! Skinny out your leeks, particularly while you scatter seeds in an space. While you’re planting seedlings, 6 inches aside is an effective vary to intention for. You would possibly have the ability to develop them nearer, however you should still discover them to be too skinny.

In the event you overlook to skinny them, and discover that you’ve got clumps of 2-3 rising collectively, fertilize and water leeks recurrently. You should utilize a fish emulsion, kelp meal, or a thick layer of compost. I’ve additionally had success utilizing natural fertilizer tea or compost tea. Some folks intentionally develop this technique to maximize their harvest in tight areas.

Whereas we like to see other forms of flowers, lots of people dread seeing their leek flower. Flowering renders the stalk woody and causes it to go bitter and inedible. Most leek flowering comes from sudden shifts within the climate. When the climate goes chilly, put a chilly body over your rising leeks earlier than they get too chilled. Step by step acclimate them to the brand new situations.

If the leek does ship up a flower stalk, harvest it earlier than it blooms. Congratulations, you now have what’s known as a leek scape! Use it in cooking for a light taste. In the event you catch the scape whereas it’s nonetheless small, your leek is not going to undergo, and also you’ll nonetheless have the ability to harvest and use it too.


Within the UK, the leek moth and its larvae are a priority for individuals who develop leeks. Tiny caterpillars tunnel into the leaf stalk to feed, inflicting brownish patches. Older caterpillars tunnel down the middle of the stalk, inflicting rotting or withering. After a month or so, the caterpillar pupates. Bacillus thuringiensis, referred to as Bt spray, wipes them out. Take away and destroy affected vegetation. Hand-pick larvae and stop moths through the use of floating row covers.

Thrips are small bugs that may be managed by releasing useful bugs similar to ladybugs and lacewings into your backyard. Preserve the world close to your leeks away from plant particles and grass, which is a house for the thrips! In case your leek patch has a extreme infestation of thrips, use neem oil to discourage them. Insecticidal cleaning soap may also work in a similar way. Lastly, pyrethrin-based sprays will kill thrips if nothing else works.

The onion maggot is amongst fly species that have an effect on onions, nevertheless it impacts leeks too. The grownup flies lay their eggs on the soil floor, which hatch. Then larvae tunnel into the earth and feed on the bulbous areas of alliums. Younger vegetation are most inclined to maggot harm. There isn’t any treatment for them, so use floating row covers, and rotate your allium crops recurrently.  


Leek rust is a fungal an infection that appears like orange pustules on the leaves. In the event you uncover rust in your leek, know it’s typically only a beauty situation. Merely take away any rust patches you uncover and destroy them. To forestall rust, rotate your crops recurrently so the fungus can’t take maintain. You may also use a liquid copper fungicide to regulate rust when it seems.

Powdery mildew and downy mildew aren’t widespread on leeks however do occur, particularly if close by vegetation are affected by it. Take away broken leaves, and take away vegetation if they’re overcrowded. More often than not, you may nonetheless get a harvest from leeks with mildew, however guarantee it hasn’t gotten to the world you’re consuming earlier than you utilize them.

Botrytis leaf blight is brought on by Botrytis allii, a fungus that causes mould between layers, a breakdown of the bulbous space of your leeks. This illness is extra prevalent in areas the place leeks aren’t correctly spaced and the soil is overly moist. Forestall these situations to forestall the illness. Except you’re keen to make use of systemic fungicides in your crops, there is no such thing as a therapy. 

Purple blotch is a fungal illness brought on by Alternaria porri. This illness causes water-soaked lesions on extra mature leaves which might be both purple or brown, with a yellow ring. The rings then develop right into a bull’s eye sample. Preserve your backyard freed from plant particles to forestall the unfold of this illness. Good air circulation and correct watering prevents the illness as effectively. Thrips additionally unfold the illness. Use prevention strategies to maintain this illness at bay. 

White tip or white rot illness, additionally known as white tip of leek, is a fungal an infection. It normally outcomes from contaminated soil splashing up onto the leaves and may impression onions. Whereas it’s much more widespread within the UK than elsewhere, it’s not fully unknown in the US. You’ll want a chlorothalonil fungicide to restore vegetation affected by white tip.

Lastly, pink root is a illness that causes pinkening of root plenty, which ultimately flip brown and die. Often, this illness – which ultimately causes dieback of the complete plant – is prevalent when leeks are planted late. Attempt to plant early so a lot of the plant’s development happens early within the season earlier than the fungus can assault. Rotate your crops and plant resistant varieties. 

Steadily Requested Questions

Pale leek flower
Pale leek flower. Supply: safoocat

Q: I heard you would develop leeks from kitchen scraps?

A: You’ll be able to if the leek has roots nonetheless on it. Minimize off the underside of the stem, leaving no less than an inch to an inch and a half of the bottom. Place the basis finish in a cup of water, and put the cup in a sunny window. Rinse off the top of the leek and alter the water day by day. Inside every week or so, inexperienced shoots will type. At that time, you may plant the leek in potting combine and let it develop! Many kinds of vegetation can regrow from kitchen scraps.

Q: Are there perennial leeks in addition to annual leeks?

A: Sure! Perennial leeks actively type new bulbils a lot in the identical means {that a} shallot does. Annuals might type bulbils, however solely when the dad or mum plant is previous its prime and able to go to seed. The flavour of perennials is extra oniony than an annual. The vast majority of commercially accessible leeks are annual varieties.

Q: What’s the finest month to plant leeks?

A: Relying on the place you reside, the rising season both begins in spring or fall. Plant and develop leeks in March, April, September, or October. 

Q: How lengthy does it take to develop leeks?

A: Leeks take anyplace from 80 to 130 days to mature.

Q: Do leeks develop again yearly?

A: Perennial varieties in the suitable situations do, sure. 

Q: Do leeks regrow after slicing?

A: They do so long as solely their first couple of outer leaves are harvested. Ensure you have a spread that has flavorful leaves earlier than you utilize them in meals.

Q: Can you permit leeks within the floor over winter?

A: Sure, so long as you develop leeks in an space the place winters aren’t harsh, you may overwinter and proceed rising leeks within the subsequent rising season. 

Q: Can I develop leeks in pots?

A: Rising leeks in containers is fully doable, however guarantee you’ve sufficient spacing between vegetation for optimum harvests.

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