Microgreens
16-25days to harvest
7-10 daysdays to germinate
Z4–9USDA zones
Easydifficulty
Heirloom

Sowing

Direct sow densely on moist growing medium or hydroponic pads

Cultivation

Sun
Full sun to partial shade (4-6+ hours)
Water
Regular (keep moist but not waterlogged)
Height
1-3 feet
Season
Warm season annual

Appearance & flavour

Colour
Green
Shape
Thread-like leaves
Flavour
Mild, delicate onion-like flavor with tender, fresh green notes; less sharp than scallion or onion microgreens.

In the kitchen

Garnish, salads, soups, stir-fries, grain bowls, mild onion flavor accent

Planting calendar by USDA zone

ZoneStart indoorsTransplantDirect sowHarvest
1January – December——January – December
2January – December——January – December
3January – December——January – December
4January – December——January – December
5January – December——January – December
6January – December——January – December
7January – December——January – December
8January – December——January – December
9January – December——January – December
10January – December——January – December
11January – December——January – December
12January – December——January – December
13January – December——January – December

Companion planting

8 beneficial pairings indexed for this variety, 3 to avoid.

CarrotsCarrots help break up soil for leek roots and leeks repel carrot fly
TomatoesLeeks deter tomato hornworms and aphids while tomatoes provide natural shade
CabbageLeeks repel cabbage worms and moths, protecting brassica crops
LettuceShallow-rooted lettuce doesn't compete with leeks and benefits from their pest-repelling properties
OnionsBoth alliums complement each other and provide mutual pest protection against aphids and thrips
CelerySimilar growing requirements and leeks help repel celery leaf spot and aphids
SpinachQuick-growing spinach can be harvested before leeks mature, maximizing space efficiency
MarigoldsRepel nematodes and aphids while attracting beneficial insects

Avoid

BeansLegumes can stunt allium growth through nitrogen competition and root interference
PeasMay inhibit leek growth due to allelopathic compounds and nutrient competition
SageStrong aromatic compounds can inhibit growth of alliums including leeks

Nutrition (per 100 g)

Calories (per 100 g)
61
Protein (g)
1.5
Fat (g)
0.3
Carbohydrate (g)
14.2
Fibre (g)
1.8
Sugars (g)
3.9
Vitamin A (µg)
83
Vitamin C (mg)
12
Vitamin E (mg)
0.92
Vitamin K (µg)
47
Vitamin B6 (mg)
0.233
Folate (µg)
64
Calcium (mg)
59
Iron (mg)
2.1
Magnesium (mg)
28
Phosphorus (mg)
35
Potassium (mg)
180
Zinc (mg)
0.12
Selenium (µg)
1

Where to buy seed and equipment

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Growing it? There is a full cultivation guide at the microgreens growing guide.

Cultivar facts compiled from public horticultural references including USDA GRIN and NC State Extension. Descriptions are original to this catalogue.

DarkGrow forum

Grown Leek?

Post a crop report — day counts, reservoir readings, what worked. Variety-specific logs are the most useful thing on the forum.

Similar varieties

Other microgreens with a comparable time to harvest, so a season that suits Leek suits these too.

Browse all 57 microgreens