DibbleWhen to plant celery in Zone 3
In Zone 3, the last spring frost usually passes around May 15 and the first fall frost arrives around September 15, leaving about 123 frost-free days. The windows below are computed from those frost dates, with the same math the Dibble app uses.
Short, cool season. Start most warm crops indoors and protect from late frosts.
Planting windows for celery in Zone 3
| Task | Window |
|---|---|
| Start seeds indoors | Mar 6 to Mar 20 |
| Transplant | May 15 to May 29 |
| Estimated harvest | Sep 12 to Oct 12 |
The harvest estimate counts 120 days to maturity, then a picking window of about 30 days. These windows use typical frost dates for Zone 3; Dibble pins them to your exact ZIP code.
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How to grow celery
Start indoors 10 weeks before last frost. Celery is thirsty and slow, keep it consistently moist for tender stalks.
Companion plants
Good neighbors for Celery:
Celery in nearby zones
Keep exploring
Celery: the full growing guide · The Zone 3 planting calendar · Every crop and zone
Plant at the right time this season
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Dates are estimates based on typical frost dates for the zone. Your yard has its own microclimate, so use them as a starting point and adjust as you learn your space.