When to Plant Sultana in Zone 1a
Get the exact Zone 1a timeline for your Sultana. See localized frost dates, indoor sowing windows, and optimal companions below.
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Crop Dates : 1a
Growing note: Zone 1a has only 30 frost-free days — shorter than this crop's 45-day maturity. Outdoor planting is not viable; use protected cultivation.
| Milestone | Date |
|---|---|
| Last Frost | Jun 15th |
| Growing Approach | Protected Environment Only |
