Nabechan

Family: Amaryllidaceae Vegetable

Nabechan scallions arrive with a crisp, sweet-snap and a gentle onion fragrance that feels clean and luminous from the first bite.

At maturity, the slender, hollow stalks form neat bundles with tender, deep-green tops and creamy, white-to-pale-green bases—ideal for fresh use and for quick roasting where their flavor turns softly caramel-sweet. Grow Nabechan for a cool-season harvest that stays pleasantly mild while delivering a satisfying crunch in every gathering.

Light: Full SunMaturity: 70 DaysHabit: Upright

Planting schedules and alerts are optimized for Columbus (Zone 6b).

Crop Dates

Milestone	Date
Start Indoors	Direct Sow
Last Frost	Apr 25th
Transplant / Sow Outdoors	Apr 25th
Harvest Begins	Jul 4th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	70
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	60
Min Soil Temp (°F)	45
Min Night Temp (°F)	32
Harden Off (days)	Not Required

Culinary Notes

Chef's Note

Nabechan keeps a mild, clean Allium perfume with real crunch, so it shines anywhere you want onion flavor without the harshness—raw, chopped small, or just barely heated. If you roast them fast, the thin hollow stalks caramelize at the edges instead of turning mushy, making them the kind of garnish you’ll actually fight for.

Best Uses

raw scallion herb salads where they need to stay snappy under dressing
quick-roast until edges freckle and go softly caramel-sweet
lightly cooked garnish for noodles and rice—flavor without aggressive bite
stir-fry finishing ribbons for fast wok heat

Flavor Profile

crisp sweet-snap gentle onion fragrance tender, hollow stalk crunch

Kitchen Pairings

soy sauce ginger sesame oil rice vinegar miso chile (fresh or crisp flakes)

Frequently Asked Questions

What pest or disease commonly affects Welsh onions (Allium fistulosum), and how can I manage it?

Allium rust (yellow-orange pustules on leaves) and onion thrips are the most frequent issues. Remove and destroy infected leaves early, then improve airflow and avoid wetting foliage; for thrips, spray a targeted insecticidal soap and repeat every 5–7 days until no new scarring appears. Rotate where you grow alliums each season and don’t replant into the same bed immediately after a rust outbreak.

How often should I water Allium fistulosum during the main growth period?

During active leaf growth (about weeks 3–10), keep soil evenly moist but not soggy—aim for light, frequent watering so the top 1 inch stays consistently damp. Water deeply only when the surface starts to dry, typically every 2–4 days depending on heat and rainfall. Avoid standing water because wet soil accelerates soft rot and causes weak, watery growth.

How do I know when Welsh onions (Allium fistulosum) are ready to harvest?

Harvest when the green leaves are firm and reach about 8–12 inches tall and days are approaching your ~70-day maturity. You can start earlier for “baby” greens, but for full-sized clumps wait until stems are thick enough to hold their shape when gently lifted. Use a few plants at a time, and harvest in the morning for the best texture.