Optima
Lettuce · Butterhead
Open Pollinated
Lactuca sativa
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Asteraceae (Sunflower family) · Genus: Lactuca
Characteristics
Color
Green
Size
Large
Trait
Slow-Bolting / Heat Tolerant
About the Plant
Life Cycle
Annual
❄
Hardiness
Cool-Season/Half-Hardy
☀
Exposure
Full Sun, Tolerates Partial Sun
💧
Moisture
Evenly Moist
🌍
Origin
France
🌱
Germination
3–10 days
at 35–85 °F
⏳
Days to Maturity
52–54 days
How to Plant
🏠
Start Indoors
4-6 Weeks Before Last Frost
Transplant
2-4 Weeks Before Last Frost
🌸
Direct Sow (Spring)
4-6 Weeks Before Last Frost
🍂
Direct Sow (Fall)
8-10 Weeks Before First Frost
Planting Depth
1/8–1/4 in
Seed Spacing
1/2–2 in
Row Spacing
12–18 in
Thin To
8–12 in
🌡
Optimal Soil Temp
40–80 °F
🌡
Soil Temp
35–85 °F
🌡
Air Temp
28–75 °F
When to Plant in Your Area
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