He Shi Ko

Family: Amaryllidaceae Vegetable

Sweet, mild, and vividly green from the first harvest—He Shi Ko scallion forms tender, hollow stalks with a crisp snap and a clean, onion-kissed finish.

The texture is pleasantly succulent, with a straight, uniform stand that’s especially satisfying when used fresh for bright garnishes and quick flavoring in sauces and stir-fries. Grow He Shi Ko for a reliable, early-to-midseason crop that keeps its color and freshness beautifully through repeated harvests.

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)	55
Min Soil Temp (°F)	45
Min Night Temp (°F)	28
Harden Off (days)	Not Required

Culinary Notes

Chef's Note

He Shi Ko’s tender hollow stalks deliver that sweet, mild Allium character without the harsh bite, so it stays snappy even when the pan is hot. Use it fresh at the end for maximum green brightness, or hit it early in fast stir-fries where it can perfume without going soft.

Best Uses

thin slices as a raw garnish on noodle bowls and dumplings
quick stir-fry rounds that stay bright instead of turning muddy
folding into warm egg scrambles and silky tofu custard at the last moment
tossing through hot rice or congee for a clean, aromatic finish

Flavor Profile

sweet, mild onion-kissed bite crisp snap with juicy, hollow stalk texture vivid green freshness

Kitchen Pairings

soy sauce ginger garlic sesame oil black pepper miso

Frequently Asked Questions

What pest or disease commonly affects Allium fistulosum (He Shi Ko) and how can I stop it?

Bunching onions (Allium fistulosum) are commonly hit by onion thrips, which cause silvery streaks and stunted growth. Check leaves weekly and, at the first sign, spray insecticidal soap (especially underside of leaves) and remove heavily damaged plants so the problem doesn’t spread. If you see wet, foul-smelling rot at the base, stop watering from above and improve airflow because bulb/base rot is often driven by persistently wet soil and dense plantings.

How often should I water He Shi Ko during the main growing phase?

During active leaf growth (roughly weeks 3–10), keep the top 1–2 in of soil evenly moist but not soggy—aim for watering when the surface starts to dry. Because Allium fistulosum grows shallow, consistent moisture matters; irregular soaking followed by drought can reduce leaf quality and delay steady growth. After plants are established, reduce watering slightly if you’re getting frequent rain to prevent base/root issues.

How do I know when He Shi Ko is ready to harvest?

Harvest when plants reach full size at about 70 days from sowing, with thick, well-formed hollow green leaves and a healthy clump. You can start taking individual leaves earlier, but for best tenderness harvest the clumps when they’re large enough that the inner leaves are firm and green. For a true “bunching” harvest, lift the whole clump gently, brush off soil, and harvest before leaves start to yellow at the tips.