When to Plant Green Onion (Scallion) in Zone 4
Allium fistulosum
Last updated: Apr 25, 2026 · Sources: USDA, NOAA, Cooperative ExtensionZone 4 Planting Schedule
Direct Sow
May 10
Directly in garden bed
First Harvest
Jul 9
50–65 days after planting
Season Ends
Aug 23
Before first frost (Sep 25)
Quick Facts
Sunlight
☀️ Full Sun
Water Needs
💧💧 Moderate
Spacing
3 inches apart
Planting Depth
0.5 inch
Min Soil Temp
40°F
Germination
7–14 days
Days to Maturity
50–65 days
Frost Tolerance
Moderate frost tolerance
Soil pH
6.0–7.0
Difficulty
Easy
Recommended for Zone 4
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Find seeds, soil, and tools suited for growing green onion (scallion) in your zone.
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Beans Peas
Green Onion (Scallion) Schedule — All Zones
| Zone | Start Indoors | Transplant | Direct Sow | Harvest Start | Harvest End |
|---|---|---|---|---|---|
| Zone 3 | — | — | May 15 | Jul 14 | Aug 28 |
| Zone 4 | — | — | May 10 | Jul 9 | Aug 23 |
| Zone 5 | — | — | Apr 30 | Jun 29 | Aug 13 |
| Zone 6 | — | — | Apr 15 | Jun 14 | Jul 29 |
| Zone 7 | — | — | Apr 5 | Jun 4 | Jul 19 |
| Zone 8 | — | — | Mar 20 | May 19 | Jul 3 |
| Zone 9 | — | — | Feb 28 | Apr 29 | Jun 13 |
| Zone 10 | — | — | Feb 10 | Apr 11 | May 26 |
| Zone 11 | — | — | Jan 15 | Mar 16 | Apr 30 |
📚 Data Sources
Frost dates: NOAA Climate Normals 1991–2020, National Centers for Environmental Information.Hardiness zones: USDA Plant Hardiness Zone Map, Agricultural Research Service.
Growing requirements: Cooperative Extension Services — NC State, Penn State, University of Florida IFAS.
Companion planting: Cornell University Cooperative Extension.
Data compiled from public agricultural sources. Always verify with your local extension office for micro-climate adjustments.