When to Plant Colossus in Zone 3b
Plan your Colossus harvest with precision. Below is the exact Zone 3b planting schedule, frost dates, and recommended companion crops.
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Crop Dates : 3b
Growing note: This crop establishes over multiple seasons (~70 days / ~1 year to first harvest). Plant on the frost schedule; first harvest follows establishment, not a single frost-free season.
| Milestone | Date |
|---|---|
| Start Indoors | Mar 10th |
| Last Frost | May 19th |
| Transplant / Sow Outdoors | May 19th |
| Harvest Begins | Jul 28th |
| Harvest Ends | Sep 21st |
