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When to plant onions in zone 6
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Onions in USDA zone 6
| Step | Dates |
|---|---|
| Start seeds indoors | Feb 9 – Feb 23 |
| Transplant outdoors | Mar 23 – Apr 13 |
| Expected first harvest | from Jul 1 |
Average zone 6 frost dates: last spring frost ≈ Apr 20, first fall frost ≈ Oct 20 (183 frost-free days). Local dates can vary by 2-3 weeks.
Plant sets or transplants 2-4 weeks before the last frost; pick long-day varieties in the north, short-day in the south.
FAQ
When to plant onions in zone 6?
Start seeds indoors: Feb 9 – Feb 23; Transplant outdoors: Mar 23 – Apr 13; Expected first harvest: from Jul 1.
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