DibbleWhen to plant arugula 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 arugula in Zone 3
| Task | Window |
|---|---|
| Direct sow | Apr 17 to May 1 |
| Estimated harvest | May 22 to Jun 12 |
The harvest estimate counts 35 days to maturity, then a picking window of about 21 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 arugula
Sow 4 weeks before last frost and every 2 weeks while it's cool. Fast and peppery, pick young leaves before it bolts.
Companion plants
Good neighbors for Arugula:
Arugula in nearby zones
Keep exploring
Arugula: the full growing guide · The Zone 3 planting calendar · Every crop and zone
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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.