Heshiko Bunching Onion

Onion

Zone 9a Save Garden

🌱 60d to harvest Upright

Sweet, crisp green tops with a gentle onion perfume rise in tidy bunches—Heshiko Bunching Onion delivers a fresh, garden-bright b…

Crop Dates

Milestone	Date
Start Indoors	Jan 23rd
Last Frost	Mar 6th
Transplant / Sow Outdoors	Mar 6th
Harvest Begins	May 5th
Harvest Ends	Nov 26th

Crop Details

Trait	Value
Days to Maturity	60
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	70
Min Soil Temp (°F)	45
Min Night Temp (°F)	28
Harden Off (days)	5

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Frequently Asked Questions

What pest or disease most commonly affects Allium fistulosum (heshiko bunching onions), and how can I prevent and treat it?

Watch for onion thrips and leaf blight (often encouraged by warm, humid foliage). Keep plants spaced for airflow, avoid wetting the leaves when watering, and remove yellowing or spotted leaves early. If you see active thrips or heavy spotting, treat with an insecticidal soap for thrips and remove infected foliage promptly to slow spread.

How often should I water Allium fistulosum during the main growing phase, and what soil moisture level should I maintain?

During active leaf growth, keep the soil consistently evenly moist but not waterlogged—aim for top 1–2 inches of soil to be lightly moist, not soggy. In warm weather, this usually means watering about 2–3 times per week, adjusting for your soil and rainfall. Mulch helps stabilize moisture so the leaves stay tender and steady in growth.

How can I tell when heshiko bunching onions (Allium fistulosum) are ready to harvest?

Harvest when plants have formed a dense clump of hollow green leaves and the leaves are roughly finger-length and sturdy, typically around 60 days from sowing. For bunching, pull or cut outer leaves first for ongoing harvests, leaving the inner growth to continue. If you wait until leaves are very thick and the clump looks crowded, you’ll reduce tenderness—so harvest at peak green growth.

Sweet, crisp green tops with a gentle onion perfume rise in tidy bunches—Heshiko Bunching Onion delivers a fresh, garden-bright bite and a tender, hollow stalk that stays pleasantly snappy. At maturity, the bulbs form neatly at the base, with smooth skins and a mild, clean flavor that shines in quick stir-fries, savory sauces, and bright garnishes. Grow it for effortless harvests at about 60 days, pulling bunches as you go for continuous, flavorful kitchen-ready greens.

Sowing Tips

Transplant Conditions

Wait until soil reaches 45°F and nights stay above 28°F before moving outdoors. Harden off for 5 days first.

Expert Note

For the longest, most tender green stems, keep soil evenly moist and harvest scallions when pencil-thick (before bulbs form).