When to Plant Black Seeded Simpson in Zone 4b
Get the exact Zone 4b timeline for your Black Seeded Simpson. See localized frost dates, indoor sowing windows, and optimal companions below.
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Explore Black Seeded Simpson Data
Crop Dates : 4b
| Milestone | Date |
|---|---|
| Start Indoors | Direct Sow |
| Last Frost | May 13th |
| Transplant / Sow Outdoors | May 6th |
| Harvest Begins | Jun 20th |
| Harvest Ends | Sep 27th |
