table{width:100%;table-layout:fixed;border-collapse:collapse;border:1px solid #e5e7eb;font-size:14px;line-height:1.1;background-color:#ffffff}table td,table th{padding:5px 10px;border:1px solid #e5e7eb;vertical-align:top;word-break:break-word}table td:first-child,table th:first-child{width:18%;background-color:#f9fafb;font-weight:600;color:#111827}table td:nth-child(2),table th:nth-child(2){width:51%;white-space:normal}table tr:hover td:not(:first-child){background-color:#f5f9ff}@media(max-width:768px){table{display:block;width:100%;overflow-x:auto}table th,table td{min-width:120px}table td:first-child{min-width:100px}} @import url('https://fonts.googleapis.com/css2?family=Lora:wght@400;600&family=DM+Sans:wght@400;500&display=swap');h4,h5{font-family:'Lora',Georgia,serif}p,td,li,div,span{font-family:'DM Sans',system-ui,sans-serif} Grow your own slender, chive-like leek microgreens and bring a clean, sweet onion note to every dish. Medium difficulty — slow and slender growers that reward patience with an elegant, dense canopy of grass-like blue-green blades. Ready to harvest in 12–14 days; uniquely regrows after cutting, giving you 2–3 harvests from a single sowing. Rich in vitamins A, C, E and K, plus folate, manganese and iron, with organosulfur compounds that support heart and circulatory health. A delicate, clean spring-onion flavour with a hint of sweetness — perfect as a garnish, stirred into eggs, or scattered over soups and potato dishes. FULL SPECIFICATION TABLE General Specification Common Name Leek microgreens Botanical Name Allium porrum (syn. Allium ampeloprasum var. porrum) Seed Type Conventional, untreated, non-GMO Stem/Leaf Color Fine, grass-like blue-green blades; pale ivory to light green stems Flavor & Texture Clean, sweet spring-onion/leek flavour; delicate, slightly crisp texture Seed Count per 10g ~3,700 seeds (≈370 seeds/gram) Cultivation Data Difficulty Medium — slow and slender seedlings; seed hulls tend to cling; patience required Preferred Medium Fine soil or coco coir; shallow tray with good drainage; fine substrate ensures good seed contact Seeding Density (1020 tray) 25–50 g per 1020 tray (25×50 cm) — start at ~25 g for a lighter canopy; 50 g for a denser, commercial-style tray Seeding Density (10x10 cm) 2.0–4.0 g per 10×10 cm Expected Yield Approximately 6–10× seed weight; multiple harvests possible (2–3 cuttings per sowing) Soaking Not required Blackout Days 6–8 days (with weighted cover tray to encourage strong, upright stems) Watering, pH & Temp Bottom-water only after blackout period; keep medium evenly moist but not saturated. Target pH 6.0–6.5. Growing temperature 18–22 °C. Ensure good airflow to prevent damping off. Sprouting Time 3–5 days (visible germination under cover) Harvest Time 12–14 days from sowing; blades 6–10 cm tall Health & Nutrition Vitamins Vitamins A, C, E, K, B6, folate (B9), riboflavin (B2) Minerals Potassium, manganese, iron, copper, magnesium Notable Compounds Flavonoids (quercetin, kaempferol), organosulfur compounds (thiosulfinates, allyl sulphides); chlorophyll; dietary fibre; omega-3 fatty acids Health Benefits Supports cardiovascular and circulatory health; antioxidant defence via flavonoids and vitamin C; contributes to immune and gut health; organosulfur compounds associated with anti-inflammatory effects ABOUT Leek microgreens are among the most elegant alliums you can grow indoors — each seed sends up a single, fine, grass-like blade that slowly fills the tray with a cool blue-green canopy and a faint, sweet onion fragrance that intensifies beautifully when you snip the first harvest. The flavour is clean and restrained: softer and slightly sweeter than a spring onion, with just a whisper of the earthy depth you'd expect from a mature leek. They shine scattered over a warm potato soup, folded into a herb omelette, or laid across smoked salmon — anywhere you want an onion note without the punch. Because leek microgreens regrow from the base after cutting, one tray can yield two or even three successive harvests, making them exceptionally good value for the patient grower. GROWING INSTRUCTIONS 1 Fill your tray with 2–3 cm of fine, moist soil or coco coir, levelling and gently firming the surface — leek seeds are tiny and need good contact with an even, smooth bed to germinate reliably. 2 Scatter 25–50 g of seeds evenly across the tray surface (no soaking needed); use a shaker bottle or your fingertips to distribute them as uniformly as possible — you'll notice the flat, angular black seeds stay exactly where they land, which makes spacing easier than with round seeds. 3 Mist the seeds lightly from above to settle them, then place a second tray on top and add a 0.5–1 kg weight. Pop the whole setup in a warm, dark spot (18–22 °C) for the blackout period of 6–8 days — check under the cover every couple of days and add a little water to the bottom tray if the medium feels dry. 4 Around day 5–6 you'll see the first pale, hooked shoots pushing up against the cover tray — this is the exciting moment when the seeds are working hard to straighten and strengthen themselves against the gentle resistance. Leave the cover on until day 6–8 so the stems grow tall and robust. 5 Remove the cover and move your tray into bright indirect light or under a grow light (12–16 hours/day). You'll notice the blades start to stand upright and gradually deepen to blue-green over the next couple of days — keep the medium evenly moist by bottom-watering only, as top-watering at this stage can encourage mould in the dense canopy. 6 Don't be alarmed if some seed hulls cling to the tips of the blades — this is totally normal for leeks. You can gently brush your palm across the canopy to dislodge them, or simply leave them as they are (they're edible and add a subtle garlic note). 7 Harvest at 12–14 days when the blades are 6–10 cm tall, cutting about 1 cm above the soil line with sharp scissors. Unlike most microgreens, leeks regrow from the base — water as usual and expect a second flush in another 10–14 days, slightly thinner but just as flavourful.