When to Plant Dark Opal in Zone 4a
Your Zone 4a Dark Opal cheat sheet. All the dates and companions you need to get seeds in the ground successfully
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Crop Dates : 4a
Growing note: This crop establishes over multiple seasons (~60 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 | Apr 3rd |
| Last Frost | May 15th |
| Transplant / Sow Outdoors | Jul 10th |
| Harvest Begins | Sep 8th |
| Harvest Ends | Sep 24th |
