When to Plant Imperial in Zone 4a
Get the exact Zone 4a timeline for your Imperial. See localized frost dates, indoor sowing windows, and optimal companions below.
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Explore Imperial Data
Crop Dates : 4a
| Milestone | Date |
|---|---|
| Start Indoors | Apr 17th |
| Last Frost | May 15th |
| Transplant / Sow Outdoors | May 15th |
| Harvest Begins | Jul 22nd |
| Harvest Ends | Sep 24th |
