How to Grow New Red Fire
Lactuca sativa
New Red Fire is a reliable heirloom lettuce variety known for its crisp leaves and resistance to common issues like tipburn. Gardeners value this cool-season crop for its ease of growth and ability to thrive in zones ranging from 2 to 11, making it an excellent choice for early spring or late autumn harvests.
📷 Wikimedia CommonsStarting New Red Fire: indoors or direct sow?
🌾 Sow directly in the garden — New Red Fire is not usually started indoors.
This variety is best direct-sown outdoors rather than started indoors; if starting seeds inside, harden off seedlings carefully before moving them outside 2 to 6 weeks prior to the last frost date.
Soil, care & harvest
Prepare loose, fertile soil with a pH between 6.0 and 7.0 before sowing seeds directly outdoors. As a cool-season crop, plant New Red Fire 2 to 6 weeks before your last expected spring frost date. Sow seeds about 1/4 inch deep in rows or scattered thinly; they typically germinate within 7 to 10 days. Keep the soil consistently moist until seedlings emerge.
Space plants 6 to 8 inches apart to ensure good air circulation and healthy head formation. While lettuce does not require trellising, provide consistent moisture by aiming for about 1 inch of water per week. Apply a light layer of mulch around the base to retain soil moisture and suppress weeds. Feed lightly if growth slows, but avoid excess nitrogen which can promote bitterness.
Watch for aphids, flea beetles, leafminers, and slugs; use row covers or hand-pick pests regularly to prevent damage. Downy mildew, lettuce drop, and bacterial soft rot are manageable with good airflow and avoiding overhead watering when possible. Harvest outer leaves as needed or cut the whole head at 55 days after sowing for peak flavor.
When to Plant New Red Fire
Planting windows vary by USDA hardiness zone. Look up yours by ZIP code.
| Zone | Start Indoors | Direct Sow | Harvest |
|---|---|---|---|
| Zone 1 | — | June – July | July – September |
| Zone 2 | — | May – July | July – September |
| Zone 3 | — | May – June | June – October |
| Zone 4 | — | April – June | June – October |
| Zone 5 | — | April – May | June – November |
| Zone 6 | — | April – May | May – November |
| Zone 7 | — | March – May | May – November |
| Zone 8 | — | March – April | April – December |
| Zone 9 | — | February – March | March – December |
| Zone 10 | — | January – March | March – December |
| Zone 11 | — | January – February | February – December |
| Zone 12 | — | January – February | February – December |
| Zone 13 | — | January – February | February – December |
Companion Plants for New Red Fire
✓ Good companions
Deep roots don't compete with shallow lettuce roots, helps break up soil
Repels aphids and improves lettuce flavor while providing natural pest deterrent
Attracts beneficial insects, provides shade during hot weather, similar water needs
Natural pest deterrent against aphids and slugs, doesn't compete for space
Repels aphids, whiteflies, and nematodes while attracting beneficial insects
Acts as trap crop for aphids and cucumber beetles, edible flowers add garden interest
Quick growth breaks up soil, repels flea beetles, harvested before lettuce needs space
Similar growing requirements, can be interplanted for succession harvests
✗ Keep away from
Heavy feeder that competes for nutrients and creates too much shade for lettuce
Allelopathic properties inhibit growth of lettuce and most other vegetables
Allelopathic compounds suppress lettuce growth, creates excessive shade and root competition
Nutrition Facts
Per 100g serving (USDA FoodData Central)
