When to Plant Persian Star in Zone 4a
Get the exact Zone 4a timeline for your Persian Star. See localized frost dates, indoor sowing windows, and optimal companions below.
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Crop Dates : 4a
Growing note: Zone 4a has only 132 frost-free days — shorter than this crop's 180-day maturity. Outdoor planting is not viable; use protected cultivation.
| Milestone | Date |
|---|---|
| Last Frost | May 15th |
| Growing Approach | Protected Environment Only |
