When to Plant Window Box Roma in Zone 1b
Plan your Window Box Roma harvest with precision. Below is the exact Zone 1b planting schedule, frost dates, and recommended companion crops.
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Crop Dates : 1b
Growing note: Zone 1b has only 61 frost-free days — shorter than this crop's 70-day maturity. Outdoor planting is not viable; use protected cultivation.
| Milestone | Date |
|---|---|
| Last Frost | Jun 1st |
| Growing Approach | Protected Environment Only |
