Leek

A practical vegetable garden series

 

Grow sweet, tender leeks from seed, and enjoy their mild onion flavour from summer through winter.

 

Written for home gardeners in Hungary

CHAPTER WELCOME

Your leek season starts here

This book follows the whole journey: seed → seedling → garden → care → harvest → kitchen → next season.

Leeks are a slow-growing member of the onion family, with a long white stem, pale green middle and broad, flat leaves. Both the stem and leaves are edible, with a gentle onion flavour that is milder than an onion. They grow steadily through spring, summer and autumn, then many varieties can stand in the garden through winter. A little extra soil around the stem helps make a longer white section.

Near Győr, start seeds indoors in February or March, or sow outdoors in a nursery row in March or April. Transplant sturdy seedlings to their final bed in May or June, when they are about pencil-thick. Leeks need a long season—often five or six months—but tolerate cool weather and light frost once established. Water during dry spells, keep weeds down and lift only what you need from late summer onward.

Our Hungarian calendar

 

 

The rule for this series: dates guide us, but the plant and the weather make the final decision.

CHAPTER 1

Meet the Leek

A leek grows as a long pale stem with flat, blue-green leaves above it.

Leek (Allium ampeloprasum var. porrum, often listed as Allium porrum) is a member of the onion family. It forms a straight white-to-pale-green stem, called a shank, with flat leaves growing from its top. The white part stays pale when protected from light by deep planting or by drawing soil up around the stem. The green leaves are edible too, although they can be firmer. Leeks grow slowly in fertile, moisture-retentive soil and are usually harvested from summer into winter.

Leek or onion?

 

Two onion-family crops with different shapes

·  Leek: a long, mild stem with flat leaves and no dry bulb.

·  Onion: a round bulb forms at the base and the tops eventually dry.

·  White stem: soil or planting depth blocks light and blanches the base.

·  Edible leaves: the green tops can be used in soups and stocks.

·  Long season: spring sowing leads to summer, autumn or winter harvest.

·  Cold hardy: established plants often stand through light frosts.

 

CHAPTER 2

Choose Your Leeks

Plan for a long growing season and decide when you want to start harvesting.

Ask yourself five questions

1.         Can I start this slow-growing crop early enough in the year?

2.         Do I have a sunny bed with fertile, well-drained soil?

3.         Can I keep young plants watered and weeded through summer?

4.         Will I transplant seedlings deeply or earth them up for white stems?

5.         Can I harvest gradually, leaving the rest in the ground?

A beginner-friendly first planting

 

 

 

CHAPTER 3

Let’s Sow

Leeks are easy to grow from seed, but they take patience. Start a small tray or nursery row in late winter or early spring, then transplant sturdy young plants once the soil is workable and the weather has settled. This saves space in the main bed while seedlings grow. Choose early varieties for summer and autumn, or winter-hardy varieties if you want to lift leeks later in the season.

When to sow in Hungary

For indoor starts, sow seeds about 0.5 cm deep in trays in February or March and keep them in good light. For an outdoor nursery row, sow thinly about 1–1.5 cm deep in March or April. Near Győr, transplant in May or June, once seedlings are around pencil-thick and 15–20 cm tall. Set them 10–15 cm apart in rows 30–40 cm apart. A later sowing can give smaller autumn leeks; check the variety packet for timing.

What you need

·  Leek seeds suited to your harvest season

·  Seed trays or a small outdoor nursery bed

·  Sunny final bed enriched with mature compost

·  A dibber or sturdy stick for planting holes

·  Watering can, labels and insect mesh if needed

Sowing, step by step

1.         Fill trays with fine seed compost, or prepare a fine nursery row.

2.         Sow seeds thinly about 0.5 cm deep indoors or 1–1.5 cm outdoors.

3.         Cover lightly, water gently and label the variety and date.

4.         Keep seedlings bright and moist until they are sturdy enough to plant.

5.         Harden off indoor seedlings gradually before transplanting.

 

 

CHAPTER 4

Seedling School

Leek seedlings start thin, grass-like and upright; keep them bright and evenly moist.

Recognise young leeks

Leek seedlings look like slender blades of grass, with no rounded seed leaves. They grow slowly at first, so keep them in good light and water when the compost begins to dry. When seedlings reach roughly pencil thickness and 15–20 cm tall, they are ready to move to their final bed. Harden indoor-grown seedlings off for about a week, gradually giving them more time outside before planting.

Why are my leeks thin and floppy?

Young leeks can look spindly if they were sown too thickly, kept in low light or left crowded for too long. Thin crowded seedlings, give them bright light and water when the surface starts to dry. Leeks grow slowly, so a thin seedling is not automatically a failed plant. Transplant when it is sturdy enough to handle; it will thicken as it grows through summer.

Water while they settle

Water seedlings after sowing and keep the compost or nursery bed evenly moist while they establish. After transplanting, water each hole well so soil settles around the roots. Leeks have shallow roots, so check the bed during dry spells and water deeply at soil level. Avoid keeping the soil waterlogged, which can encourage disease.

Feeding

Leeks grow best in fertile soil, so mix mature compost into the bed before planting. If your soil is poor, use a balanced vegetable fertiliser according to its label. Avoid fresh manure and strong, repeated feeds; steady growth in good soil is more useful than a sudden burst of soft leaves.

 

 

CHAPTER 5

Ready for the Real World

Plant leeks outdoors once seedlings are sturdy and spring weather has settled.

Before planting: check the plants and the bed

1.         Choose seedlings that are upright, green and about pencil-thick.

2.         Harden indoor-grown plants off gradually for about a week.

3.         Prepare fertile, moisture-retentive soil that drains freely.

4.         Choose a sunny position with room for rows and summer weeding.

5.         Have a dibber ready to make deep planting holes.

When is it ready in Hungary?

Near Győr, transplant leeks in May or June once the soil is workable and seedlings are sturdy. If a late frost threatens freshly planted seedlings, cover them overnight. Established leeks tolerate cool weather and light frosts. Choose a winter-hardy variety for lifting later in the year, and keep the bed accessible before the ground freezes hard.

Spring warmth and frost risk vary across Hungary. In cooler or exposed gardens, use fleece to protect young transplants from a sharp late frost; in warmer lowland gardens, planting can begin earlier once conditions are settled. Leeks need a long season, so start seed early and check the packet for variety-specific harvest timing.

 

 

CHAPTER 6

Give Them a Good Home

A sunny, fertile bed and careful deep planting help leeks form long, pale stems.

The right place

Choose a sunny, open position with fertile, well-drained soil that holds some moisture. Add mature compost before planting. Avoid beds that recently held onions, garlic, chives or leeks, and weed the ground thoroughly because leek leaves do not shade out weeds. A little afternoon shade is acceptable in a hot, dry garden, but good light helps plants grow steadily.

Spacing

For full-size leeks, space plants about 10–15 cm apart in rows 30–40 cm apart; follow the variety packet for large winter types. For baby leeks, plant closer. This gives roots and leaves enough room and leaves space to weed and earth up the stems. Keep the planting line straight so watering and harvesting are easier.

Planting day

1.         Water the seedlings and prepare a moist, weed-free bed.

2.         Make holes about 10–15 cm deep with a dibber or sturdy stick.

3.         Set one seedling in each hole, leaving just a little leaf above soil.

4.         Pour water into each hole to settle soil around the roots.

5.         Leave the holes open; do not pack dry soil into the leaves.

Growing in pots

Leeks can grow in a large, deep container with drainage, especially if you want baby leeks. For full-sized plants, choose a container at least 30 cm deep and wide, and space plants 10–15 cm apart. Use fresh potting mix, water regularly and top up compost around the stems to blanch them. Containers dry out faster than garden beds, so check them often in warm weather.

 

CHAPTER 7

Water, Feed & Keep Them Growing

Steady water, fertile soil and gentle earthing-up support strong leek stems.

Watering

Water young plants after transplanting and during prolonged dry spells. Leeks have shallow roots and need enough moisture to keep growing steadily, especially in sandy beds and containers. Water the soil rather than the leaves where possible, and avoid leaving the bed waterlogged. A light mulch helps slow water loss and keep weeds down.

Mulch

Once the plants are established, apply a light layer of compost or clean straw to conserve moisture and suppress weeds. Keep mulch from covering the leaves. Leeks grow slowly, so weed by hand close to each plant and hoe shallowly between rows to avoid damaging their roots.

Feeding

Compost worked into the bed before planting is a good start. If growth is weak in poor soil, apply a balanced vegetable feed according to its label during the growing season. Leeks need fertile soil but do not benefit from excessive feeding. Avoid fresh manure and keep the soil evenly moist so plants can use nutrients steadily.

Keep plants healthy

Inspect plants for leek moth caterpillars, allium leaf miner, onion fly damage and orange rust spots. Fine insect mesh can help protect young rows from flying pests. Remove badly affected leaves, water at soil level and rotate leeks away from onion-family crops for at least three or four years to reduce disease buildup.

 

CHAPTER 8

Stems, Leaves & “What Is That?”

The white and pale-green stem is the shank; the darker flat leaves are edible too.

Why is the white part of my leek so short?

The base stays pale only where light is excluded. Plant seedlings in deep holes and let water settle soil around them, or gradually draw loose soil around the stems as they grow. Do not push soil down between the leaves, where it can become trapped. Keep the bed weeded and water during dry spells so plants can keep growing and lengthening their stems.

The beginner’s trouble guide

 

 

 

CHAPTER 9

Can I Pick It Yet?

Yes—harvest leeks when the stems are as thick as you need, often from late summer onward.

What “ready” looks like

A leek is ready when the stem has reached a useful size for your kitchen; many varieties take about five or six months from sowing to full size. Look for a firm, straight white or pale-green shank with healthy blue-green leaves. Baby leeks can be lifted earlier. Harvest frost-tolerant varieties through autumn and winter as needed, before the soil freezes solid.

Harvest from summer into winter

 

How often should I check?

Check the row every few weeks once the stems begin to thicken. Lift the largest leeks first, or take every other plant and leave its neighbours to grow bigger. Loosen each leek with a garden fork before lifting to avoid breaking the stem. If the ground is likely to freeze hard, harvest a few ahead of the coldest spell and store them cool.

 

 

CHAPTER 10

From the Garden to the Kitchen

Leeks have a gentle onion flavour, and both pale stems and green leaves can be used.

The first rule: clean between the leaves

Leeks often hold soil between their tightly layered leaves. Trim the roots and any damaged leaf tips, then slice the leek lengthwise and rinse between the layers under running water. Slice the white and pale-green stem for soups, stews, quiche or a gentle sauté. The darker green leaves are firmer but add flavour to stocks and broths. Cook until tender, not browned or burnt.

Match leeks to the dish

·  Soup: simmer sliced leeks with potato and stock.

·  Sauté: cook thin slices slowly in butter or oil.

·  Quiche: soften the pale stems before adding to the filling.

·  Stock: save clean green leaves to flavour broth.

 

Storing fresh leeks

Brush off loose soil but leave the leeks unwashed until you need them. Store them in a loose bag in the refrigerator, away from foods that absorb strong smells. Use within about a week for best quality. If the leaves wilt slightly, trim them before cooking. Wash thoroughly just before preparing, especially between the layers.

When you have more than you can use

Leeks can stand in the garden for a long time, so lift them as needed rather than harvesting the whole row. If you have a surplus, clean and slice the pale stems, blanch briefly, cool quickly and freeze in meal-sized portions. You can also freeze clean green leaves for stock. Label the bags and use them in cooked dishes.

CHAPTER 11

Next Season Starts Now

A few notes about sowing, planting depth and harvest will help you plan next year’s leeks.

Keep a tiny garden record

·  Seed source and exact leek variety

·  Date of indoor or outdoor sowing and when seedlings appeared

·  When seedlings reached pencil thickness

·  Transplant date and how well plants settled

·  How deep planting affected the pale stems

·  Which variety suited your harvest season

·  When the first leeks were ready to lift

Saving seed and planning another crop

Leeks are usually grown as a long-season annual, but plants left in the ground can flower in their second year and make seed. To save seed, let a healthy open-pollinated plant overwinter and flower, and keep different leek varieties apart because they can cross-pollinate. Allow seed heads to dry before collecting. Seed saving takes space and patience, so for a small garden it is simplest to buy fresh seed each year.

1.         Choose one healthy plant of an open-pollinated variety.

2.         Leave it in the bed through winter and let it flower next year.

3.         Allow the seed heads to dry on the plant.

4.         Collect the dry seeds and finish drying them in a warm, airy place.

5.         Label the variety and year, then store cool and dry.

 

 

COME GROW WITH ME

LEEK CHEAT SHEET

The page to come back to when you have soil on your hands and no time to reread the whole book.

 

 

 

COME GROW WITH ME • LEEK

Seasonal guidance is adapted for Hungarian home gardens.