AlliumsAmaryllidaceae

Leeks.

Cool seasonDeer-resistant
Botanical illustration of leeks
At a glance

The spec sheet.

Indoor start
Feb 1–15
Direct sow / out
Apr 1–15
Germ
7–10 days
Days to harvest
100–150
Spacing
6"
Depth
¼" (seed), transplant into 6" dibber holes
Square-foot
4 per square
Qty target
30 for daily winter cooking (soups, braises).
In our garden

Where leeks grows here.

This crop is planted in 1 bedright now. Click through to see the full layout and what it’s planted with.

Plant

Sow thick in trays under lights alongside onions. Transplant into 6" dibber holes — don't backfill; rain blanches the shanks over the season.

Care

Shallow roots — hand weed, water weekly. Hill up soil around the shanks in August for extra blanching.

Harvest

Dig Sep–Dec, sweeter after frost. Overwinter mulched for a March harvest.

Preserve

Best fresh. Also freezes well cleaned and sliced into rings.

Companion planting

What leeks likes, and doesn’t.

Good neighbors

Avoid nearby

More in this family

Also in the Alliums.