Heshiko Evergreen

Family: Amaryllidaceae Vegetable

Heshiko Evergreen delivers a lush, evergreen sweep of tender scallions with a crisp snap and a clean, gently sweet onion bite.

The slender, upright stalks stay attractively mild and flavorful as they mature, making them especially satisfying for fresh use and for quick flavor-building in savory dishes. Grow a tidy stand of bright green stems for repeated harvests and a steady supply of garden-fresh character from spring through early summer.

Light: Full SunMaturity: 60 DaysHabit: Upright

Botanical illustration of Heshiko Evergreen

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	Jun 24th
Harvest Ends	Oct 16th

Crop Details

Trait	Value
Days to Maturity	60
Sun Requirements	Full Sun
Growth Habit	Upright
Support Needed	None
Planting Depth	Normal
Germination Temp (°F)	55
Min Soil Temp (°F)	40
Min Night Temp (°F)	28
Harden Off (days)	Not Required

Culinary Notes

Chef's Note

Heshiko Evergreen hangs onto that mild, sweet scallion flavor while keeping a snappy bite, so you can use it raw without the bite turning sharp. It’s ideal as a fast aromatizer—add late, let the greens stay bright, and keep the sweetness from burning off.

Best Uses

thin-shaved raw salad and slaws where they keep their crunch
quick skillet finish for noodles, fried rice, and egg scrambles
sliced into broths and hot pots as a near-last-minute aromatizer
charred scallion rounds for a smoky, sweet-savory bite without overpowering

Flavor Profile

clean, gently sweet onion bite crisp snap with tender, fine-grained greens bright, scallion-typical mildness as plants mature

Kitchen Pairings

ginger soy sauce sesame oil eggs tofu rice vinegar

Frequently Asked Questions

What pest or disease commonly affects Allium fistulosum (heshiko evergreen), and how can I prevent it?

Allium fistulosum commonly suffers from leaf miner and onion thrips, which cause silvery streaks and weak, blemished growth. Check leaves weekly and remove heavily damaged foliage early; use insect netting/row cover over the crop to block adults, and apply insecticidal soap when nymphs are actively present. Keep beds free of volunteer alliums and avoid wetting the foliage to reduce disease pressure.

How often should I water heshiko evergreen during its main growing phase?

During active growth (roughly weeks after establishment through mid-season), keep the soil evenly moist but not waterlogged—aim for about 1 inch (2.5 cm) of water per week split into smaller waterings if needed. Let the top 1–2 cm of soil dry slightly between waterings to prevent rot, especially if weather is cool or rainy. Mulch lightly to stabilize moisture because allium fistulosum roots are relatively shallow.

How do I know when Allium fistulosum is ready to harvest?

Harvest at about 60 days when the hollow green stems are thick enough for your use and the plants form a solid clump with good color and height. For repeated harvests, cut outer stems 2–3 cm above the soil and leave the inner shoots to keep growing. Stop cutting when stems start to thin dramatically or growth slows, then let the next wave build if your plants are still vigorous.