Fukaya Negi: Saitama's Famous Long White Leek

Fukaya City, in northern Saitama, has built its agricultural identity substantially around negi (Japanese leek), grown in well-drained soil using a mounding technique that produces an especially long, tender white shaft. Fukaya negi is sold with a noticeably longer white portion than typical supermarket negi, and its sweetness after cooking — a contrast to its sharper raw bite — is the trait locals point to as the variety's defining feature.

The classic use is grilled negi (negima), often skewered with chicken, or simmered whole in nabe hot pots where it slowly softens and sweetens as it absorbs the broth. It also gets sliced and stir-fried, or simmered on its own with just soy sauce and dashi as a simple side dish. Harvest runs through the colder months, roughly November to February, when the negi is considered sweetest — worth timing a visit around if chasing peak flavor.