When to Plant Jalapeño in Zone 4b
Get the exact Zone 4b timeline for your Jalapeño. See localized frost dates, indoor sowing windows, and optimal companions below.
Need deeper agronomic data, pest profiles, and optimal flavor pairings?
Explore Jalapeño Data
Crop Dates : 4b
| Milestone | Date |
|---|---|
| Start Indoors | Mar 18th |
| Last Frost | May 13th |
| Transplant / Sow Outdoors | Jul 8th |
| Harvest Begins | Sep 21st |
| Harvest Ends | Sep 27th |