Botanical illustration of yarrow

Field guide

When to plant yarrow in USDA Zones 5–6

In USDA Zones 5–6, the planner’s broad outdoor planting window for yarrow runs from March to May, with a second window from September to November. Yarrow takes 90–150 days from planting to first harvest.

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Planting calendar for USDA Zones 5–6

Spring planting
March to May
Fall planting
September to November
Days to harvest
90–150 days
Water needs
low

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.

How to know when to harvest

  • Flowers are newly opened and free of pesticide exposure
  • Harvest before heat causes wilting

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.

About this field guide

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