Cosmic Crimson
Velvety leaves unfurl in a spell of deep crimson and wine-red veining, with a cool, crisp snap that feels almost luminous. Cosmic Crimson forms an airy loose rosette of tender, finely textured foliage—sweet-green at the heart, richly colored toward the edges—for standout freshness in salads and vibrant garnishes. Grow it for 45 days to maturity and enjoy its bright, garden-to-table appeal in leafy mixes and quick tosses, where its color stays beautifully vivid.
Crop Dates
| Milestone | Date |
|---|---|
| Last Frost | Jun 15th |
| Growing Approach | Protected Environment Only |
Crop Details
| Trait | Value |
|---|---|
| Days to Maturity | 45 |
| Sun Requirements | Part Sun |
| Growth Habit | Rosette |
| Support Needed | None |
| Planting Depth | Surface |
| Germination Temp (°F) | 70 |
| Min Soil Temp (°F) | 40 |
| Min Night Temp (°F) | 30 |
| Harden Off (days) | 5 |
Frequently Asked Questions
What’s the most common pest or disease problem for Lactuca sativa (Lollo Rossa-type) and how do I fix it?
How often should I water Lactuca sativa during the main growing phase to prevent problems?
How can I tell when Lactuca sativa (Cosmic Crimson/Lollo Rossa type) is ready to harvest?
Velvety leaves unfurl in a spell of deep crimson and wine-red veining, with a cool, crisp snap that feels almost luminous. Cosmic Crimson forms an airy loose rosette of tender, finely textured foliage—sweet-green at the heart, richly colored toward the edges—for standout freshness in salads and vibrant garnishes. Grow it for 45 days to maturity and enjoy its bright, garden-to-table appeal in leafy mixes and quick tosses, where its color stays beautifully vivid.
Sowing Tips
Soil Temperature
Direct sow or transplant when soil at planting depth holds 40°F for reliable germination and early growth.
Expert Note
For best bolt resistance, keep lettuce evenly moist and give it morning sun with afternoon shade as temperatures rise.
