Long Island Improved · Brussels Sprout
Planting Schedule
Add Long Island Improved to your garden to build a schedule and get reminders.
| Milestone | Date |
|---|---|
| Start Indoors | Feb 23rd |
| Last Frost | Mar 23rd |
| Transplant / Direct Sow Outdoors | Mar 23rd |
| Harvest Begins | Jun 21st |
| Harvest Ends | Nov 12th |
Crop Details
Transplant Conditions:
Wait until soil reaches 45°F
and nights stay above 35°F
before moving outdoors.
Harden off for 6 days first.
| Trait | Value |
|---|---|
| Days to Maturity | 90 |
| Sun Requirements | ☀️ Full Sun |
| Growth Habit | Upright |
| Support Needed | None |
| Planting Depth | Normal |
| Germination Temp (°F) | 45 |
| Min Soil Temp (°F) | 45 |
| Min Night Temp (°F) | 35 |
| Harden Off (days) | 6 |
Expert Note: Start indoors for sturdy transplants, then move out about a week before/around last frost so Brussels sprouts can establish in cool weather and set a long, steady sprout harvest.