Leek (Allium ampeloprasum)

What it needs & gives back

↓ Needs

Lightfull sun to partial shade

Watermoderate

↑ Gives back

Mulch_biomassmedium

Common bean

Leeks are generally considered good companions for beans.

Celery celeriac

Celery benefits from the pest-repelling properties of leeks.

Cabbage

Leeks can help deter aphids from brassicas.

JFMAMJJASOND

emergenceEmergence typically occurs after the last spring frost when soil temperatures consistently reach 5°C.

floweringFlowering is triggered by lengthening days, occurring approximately 120 days after emergence.

harvestLeeks are typically harvested from late summer through autumn, often starting in September.

dormancyDormancy is induced by the first autumn frost, allowing plants to overwinter in milder climates.

Drainagewell-drained

Nitrogen fixingNo

MycorrhizalNo

Accumulatessulfur

Soil textureloam, sandy_loam

Organic matterMedium

Compaction toleranceLow

Methodsseed

Difficulty2 / 5

Establishes in~1 yr

Stratificationnone

Self-seedingLight

Divisionspring

Repelscarrot_rust_fly, aphids

Can host diseasesonion white rot, downy mildew, rust