Vegetable / Cool season

American Flag Leek

Long-season allium beds and soup-garden plantings.

Mild onion flavor with tender white shanks.

Seed spacing and maturity

Can I plant this now?: Use your local last-frost, first-frost, and soil-temperature checks before treating this crop as plantable today.
Start indoors or direct sow?: Start indoors, harden off, then transplant into the final bed when local timing is safe.
How much space?: 6 inches in-row spacing, 18 inches between rows, and 0.25 inch seed depth.
Best companions?: Use crop-family rotation first, then pair with compatible timing, spacing, and canopy size rather than relying on a simple companion chart.
Common failure modes?: Do not let seedlings dry out before transplanting; leeks recover slowly. Even water supports long, mild shanks. Deep, fertile, well-drained soil that can be hilled or mulched.

Sun: Full sun
Water: Even water supports long, mild shanks.
Soil: Deep, fertile, well-drained soil that can be hilled or mulched.
Watch: Do not let seedlings dry out before transplanting; leeks recover slowly.