When to Plant Zinnia in Zone 3a
Get the exact Zone 3a timeline for your Zinnia. See localized frost dates, indoor sowing windows, and optimal companions below.
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Explore Zinnia Data
Crop Dates : 3a
| Milestone | Date |
|---|---|
| Start Indoors | Direct Sow |
| Last Frost | May 15th |
| Transplant / Sow Outdoors | May 15th |
| Harvest Begins | Jul 14th |
| Harvest Ends | Sep 1st |
