When to Plant Petunia in Zone 4a
Plan your Petunia harvest with precision. Below is the exact Zone 4a planting schedule, frost dates, and recommended companion crops.
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Crop Dates : 4a
| Milestone | Date |
|---|---|
| Start Indoors | Mar 6th |
| Last Frost | May 15th |
| Transplant / Sow Outdoors | May 1st |
| Harvest Begins | Jul 10th |
| Harvest Ends | Sep 24th |
