Harvest · Signals, not a promise
When to harvest green onions
When to harvest green onions here is cited size and pull cues. Those notes are not how long yours keeps.
Growing guidance is general information. Timing, spacing, and care depend on cultivar, weather, soil, and local conditions. Check the sources and adjust the plan for your garden.
Illustrative photograph — harvest signals stay on the cited sheets.
Growing lives on how to grow green onions.
What the sources say — at a glance
One source per card. Facts are not averaged.
Clemson HGIC 1255 (South Carolina)
Tops 6 to 8 inches. Before flower stalks form.
Details and limits (2)
Harvest
Clemson HGIC 1255 (South Carolina): harvest green onions when tops are 6 to 8 inches tall and before flower stalks form. Cue — not a keeping promise.
Limit
Not storage.
Maryland Extension (Maryland)
Tops 6 inches.
Details and limits (2)
Harvest
Maryland Extension (Maryland): harvest green onions when tops are 6 inches tall. Cue — not a keeping promise.
Limit
Not storage.
UMN Extension (Minnesota)
Usable size. Loosen with a trowel before pulling.
Details and limits (2)
Harvest
UMN Extension (Minnesota): pull scallions when they have reached usable size. You may need to loosen the soil with a trowel before pulling, to avoid breaking the plant off at the soil line. Cue — not a keeping promise.
Limit
Not storage.
Illinois Extension (Illinois)
Any time after tops are 6 inches tall.
Details and limits (2)
Harvest
Illinois Extension (Illinois): pull green onions any time after the tops are 6 inches tall. Cue — not a keeping promise.
Limit
Not storage.
Oregon State Extension (Oregon)
Any time after 6 inches high. Loosen with a fork to pull the plant.
Details and limits (2)
Harvest
Oregon State Extension (Oregon): harvest any time after the plant is 6 inches high. When ready to pull up the entire plant, loosen the soil around the onion with a fork. Cue — not a keeping promise.
Limit
Not storage.
Sources differ
Make it yours
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How do you know when green onions are ready to harvest?
Compare cues on the cited sheets. Clemson HGIC 1255 (South Carolina): tops 6 to 8 inches. Maryland: tops 6 inches. Minnesota: usable size. Illinois: after tops are 6 inches. Oregon: after the plant is 6 inches high.
How we know — methodology. Ranges and assertions are cited per source, not blended.