Botanical illustration of dill

Field guide

When to plant dill in USDA Zones 9–10

In USDA Zones 9–10, the planner’s broad outdoor planting window for dill runs from February to April, with a second window from September to November. Dill takes 40–60 days from planting to first harvest.

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Planting calendar for USDA Zones 9–10

Spring planting
February to April
Fall planting
September to November
Days to harvest
40–60 days
Water needs
low

What USDA Zones 9–10 do—and do not—tell you

These zones span average annual extreme minimum temperatures of roughly 20°F to 40°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

  • For leaves (dill weed): harvest once plant is 8+ inches, before flowering
  • For seeds: let flower heads dry on the plant until brown
  • Flavor is best right before the plant flowers

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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