When to Plant Kokusai in Zone 1b
Get the exact Zone 1b timeline for your Kokusai. See localized frost dates, indoor sowing windows, and optimal companions below.
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Explore Kokusai Data
Crop Dates : 1b
| Milestone | Date |
|---|---|
| Start Indoors | May 18th |
| Last Frost | Jun 1st |
| Transplant / Sow Outdoors | Jul 20th |
| Harvest Begins | Sep 3rd |
| Harvest Ends | Aug 1st |
