Domakihub How to Grow Leeks: From Seed to a Generous Harvest
Plant once, harvest all winter — leeks are one of the most rewarding vegetables for Greek gardens.
Reviewed by Domakihub garden pros · 2026-06-23 · 5 min read
Leeks are a practical, low-fuss crop that suits the Greek climate well — mild winters mean you can keep them in the ground and harvest as needed from autumn all the way through spring. Whether you manage a private garden, a holiday villa with an orchard bed, or a boutique hotel that sources its own produce, leeks reward very little effort with a long harvest window. Watch the video above for the full visual walkthrough, then follow the steps below to get them growing.
Why Leeks Work Well in Greece
Unlike lettuce or basil that bolt in summer heat, leeks thrive in the cooler half of the year. Sow seeds in late winter or early spring and transplant in May or June; by October you will have thick, blanched stems ready to pull. Greek soil in most regions drains well enough that leeks rarely suffer the waterlogging problems common in northern Europe.
Leeks are also largely pest-resistant in the Greek context — the main pressure is leek moth, which is far less prevalent in warmer, drier climates than in central Europe. That makes them an excellent candidate for gardens at holiday rentals or hotels where low-maintenance crops are essential.
Choosing the Right Variety
For Greek conditions, choose varieties that tolerate mild winters rather than the ultra-hardy types bred for frozen ground. 'Musselburgh', 'Carentan', and 'King Richard' are all widely available and perform well in Mediterranean climates. King Richard in particular has a long, slender shaft and matures quickly — useful if you want an early harvest before the main heat arrives in June.
Avoid very late-season varieties marketed for northern climates unless you are growing at altitude, where winter temperatures drop more sharply. In coastal lowland Greece, a mid-season variety gives the best balance of stem length, flavour, and timing.
5 Steps to Growing Leeks Successfully
- 1
Sow seeds indoors in late winter
Fill trays or small pots with seed compost and sow leek seeds thinly about 1 cm deep. Keep them at 15-18°C — a warm windowsill or a cold frame that is closed at night works well. Seeds germinate in 10-14 days and the seedlings look like thin grass; do not mistake them for weeds. Aim to sow by late February or early March so plants are large enough to transplant by May.
- 2
Harden off and prepare the planting bed
Before transplanting, spend one to two weeks moving seedlings outside during the day and back in at night so they adjust to outdoor conditions. Meanwhile, prepare a sunny bed by digging in well-rotted compost or aged manure. Leeks like fertile, moisture-retentive but well-drained soil with a neutral pH. Break up any large clods and remove stones so the roots can push straight down.
- 3
Transplant using the dibber-and-drop method
When seedlings are pencil-thick (roughly 15-20 cm tall), transplant them. Use a dibber or a thick stick to make holes 15 cm deep and 15-20 cm apart in rows 30 cm apart. Drop one seedling into each hole — do not firm the soil around it. Water the hole gently with a can so that soil settles naturally around the roots. This loose planting method encourages the stem to blanch (whiten) deep underground, giving you more tender flesh to eat.
- 4
Water and earth up through the season
Leeks need consistent moisture, especially in the dry Greek summer. Water at the base, not the leaves, and mulch with straw or dried grass clippings to conserve moisture and suppress weeds. As the stems grow, gradually draw soil up around them every two to three weeks — this is called earthing up. The more stem you keep covered, the longer and whiter the edible portion will be when you harvest.
- 5
Harvest as needed from autumn onward
Leeks are ready when the stem diameter reaches 2-3 cm, typically 16-20 weeks after transplanting. Do not pull the whole row at once — simply harvest what you need and leave the rest in the ground, where they continue to grow. Use a fork or trowel to loosen the surrounding soil before lifting to avoid snapping the stem. In coastal Greece, harvests can last from October all the way through March without the plants bolting.
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FAQ
- Can I grow leeks in containers on a terrace or balcony?
- Yes, leeks grow well in deep containers — at least 30 cm deep — filled with a mix of good potting compost and garden soil. Space them 10-15 cm apart and water more frequently than in-ground plants, as pots dry out faster. Yields will be slightly smaller but the flavour is identical.
- When is the best time to sow leeks in Greece?
- Sow indoors in February or March for a summer transplant and autumn-to-spring harvest. In areas with mild winters such as Crete, the Peloponnese coast, or the Aegean islands, you can also sow in August and transplant in October for a harvest that runs through spring without any frost risk.
- My leek stems are thin and green rather than white — what went wrong?
- Thin, green stems mean the leeks were not earthed up enough. The white blanched portion only develops where the stem is kept away from light by surrounding soil. Next season, make your planting holes deeper and earth up more aggressively every few weeks as the plant grows. The flavour is still good — the green tops are edible too — but the texture is less tender.