Field guide
When to plant arugula in USDA Zones 5–6
In USDA Zones 5–6, the planner’s broad outdoor planting window for arugula runs from April to May, with a second window from August to September. Arugula takes 21–40 days from planting to first harvest.
Open plannerPlanting calendar for USDA Zones 5–6
- Spring planting
- April to May
- Fall planting
- August to September
- Days to harvest
- 21–40 days
- Water needs
- medium
What USDA Zones 5–6 do—and do not—tell you
These zones span average annual extreme minimum temperatures of roughly -20°F to 0°F. That is useful climate context, but it does not determine your exact frost dates. Check a local forecast or county Extension calendar before planting tender crops.
Succession planting: Plant every 2-3 weeks for continuous harvest
How to know when to harvest
- Leaves are 2-3 inches long for baby arugula, 4-6 for mature
- Flavor becomes spicier as leaves mature and in hot weather
- Harvest before flowers appear for best taste
Want a plan that accounts for your crops, growing method, equipment, and plant conditions? Open the free planner for a daily crop checklist and adaptive harvest forecast.
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