Planting Date · Dill
Dill Planting Date Calculator
Calculate the optimal planting dates for dill based on your USDA zone, last frost date, and preferred start method.
Optimal Soil Temp
55°F
Days to Maturity
50 days
Frost Tolerance
semi hardy
Planting Depth
1/4 inch
Input
Fill in the fields below, then click Calculate.
Select your USDA plant hardiness zone (3–10).
Approximate month of your last spring frost.
How you plan to start the crop.
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Fill in the fields and click Calculate to see results.
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What to Calculate Next
How to Use This Calculator
Select your USDA hardiness zone and the month of your last expected spring frost. Choose whether you plan to direct sow or start dill transplants indoors. The calculator uses frost tolerance data and days to maturity to recommend optimal planting windows.
Why This Matters
Planting dill at the right time is critical for success. Planting too early exposes young plants to cold damage, while planting too late shortens the growing season and reduces yield. Timing varies significantly by USDA zone.
Methodology
This calculator uses USDA hardiness zone frost date tables and crop-specific data: Dill requires 50 days to maturity, has semi-hardy frost tolerance, and needs soil temperatures of at least 55°F. Indoor start dates are calculated by subtracting transplant lead time from the last frost date.
Common Mistakes to Avoid
- Planting based on calendar date rather than soil temperature and frost risk.
- Not hardening off dill transplants before moving them outdoors.
- Ignoring microclimates — low-lying areas frost later in spring and earlier in fall.
- Forgetting that dill needs 50 days to reach maturity when planning fall plantings.
Tips & Best Practices
- Direct sow dill 2–3 weeks before the last frost.
- Dill has a taproot and does not transplant well — always direct sow.
- Succession plant every 3 weeks for a steady supply of fresh fronds.
- Let some plants flower and go to seed for pickling and self-seeding.