35 – 45 days. Compact plants with loose, crumpled reddish-green leaves. Ruby Red is the darkest red of all red lettuces. Won't fade and is heat resistant. A very decorative plant. These non-GMO Ruby Red seeds grow into greenish red, loose leaves of lettuce that are ready to harvest in 35 to 45 days. The Ruby Red can be grown in zones 3-9. The leaves of the Ruby Red have a mildly sweet flavor. 

Latin Name: lactuca sativa
Seed Type: Annual
Sow Indoors or Outdoors: Outdoors
Days to Maturity: 35 – 45 days
Hardiness Zone: 3 – 9
Planting Depth: 1/8"
Plant Spacing: 8"
Row Spacing: 12 – 18"
Growth Habit: Mound
Soil Preference: Moist, well-drained
Temp Preference: Warmer
Light Preference: Full sun or partial shade
Diseases/pests/problems:Lettuce that is crowded while growing will have a bitter taste. Susceptible to aphids and slugs.
Color:Red and Bronze shades among green.
Flavor:Mildly sweet