VegetableLettuce
Optima Lettuce
Optima is a Boston-type butterhead lettuce that matures in 50-55 days, bringing reliable, thick dark green heads to gardens across hardiness zones 2-10. This heirloom variety was bred for heat tolerance and disease resistance, making it one of the few butterheads that can stand up to summer conditions without bolting prematurely. With mature plants reaching 5-10 inches tall and spaced 12 inches apart, it's compact enough for containers yet productive enough for succession planting throughout the season.
Photo © True Leaf Market
Growing Conditions
USDA Zone
2-10
Sunlight
Full Sun
Water
Moderate
Soil
Well-drained, Fertile Loam With Consistent Moisture
Growth Stats
10 in
Height
Spacing
12
Plant Profile
Sunlight
Full Sun
Water
Moderate
Zones
2-10
Size
10in H x ?in W
Growth
—
Care
High
Hover over chart points for details
Highlights
Thick, dark green leaves distinguish Optima from lighter-colored butterheads, and its remarkable resistance to bolting in warm weather makes it a genuine summer performer where other lettuces surrender to heat. The variety resists tip burn, a common frustration in inconsistently watered gardens, while tolerating mildew races 1-4 and LMV. Its compact size and rapid maturity mean you can plant new rows every two to three weeks and harvest continuously without waiting a full season for results.
Common Uses
Optima serves as a classic salad lettuce, its thick, tender leaves ideal for composed salads where you want structure and substance rather than delicate greens. The entire head can be harvested and used fresh, or individual outer leaves can be picked continuously, allowing the inner head to keep growing. In kitchens where butterhead texture is preferred over loose-leaf delicacy, Optima brings reliable supply to summer salads, sandwiches, and lettuce cups throughout the warmest months.
Growing Timeline
No timeline data available yet for this variety.
Care Instructions
Start Indoors
Start Optima indoors 4-6 weeks before your anticipated transplant date. Once seedlings develop 2-3 true leaves, they're ready to harden off and move outdoors.
Transplant Outdoors
Transplant when seedlings have developed true leaves and weather permits. Space butterhead lettuce 12-16 inches apart in rows 16 inches apart. Optima benefits from consistent soil temperature and moisture at transplant time.
Direct Sow
Direct sow Optima seeds where they will grow, using row cover to improve germination and prevent soil crusting. Once seedlings show 2-3 true leaves, thin to 12-16 inches apart for butterhead types.
Harvesting
Optima can be harvested in two ways depending on your preference. For a single, full harvest, cut the plant about 1 inch above the soil line when the head feels firm and dense. For extended picking, harvest individual outer leaves as they reach full size, allowing the inner leaves to continue developing; check plants daily as they begin to age, since all butterheads eventually become bitter as they approach bolting. This variety's heat tolerance means you'll have a longer window before bitterness sets in compared to standard butterheads.
Growing Calendar
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Companion Planting
Pests & Diseases
Ecology & Traits
Edible
Scientific Classification
Lactuca sativa
Family
Asteraceae
Genus
Lactuca
Native Status
L48 (I)PR (I)VI (I)CAN (W)
History & Origin
“Optima carries the pedigree of a thoughtfully developed heirloom, a Boston-type butterhead created to solve the heat-tolerance problem that has plagued home gardeners for generations. While the exact origin story is not detailed in available records, the variety represents deliberate selection for vigor and resistance traits; seed catalogs note it as a heirloom variety, suggesting a lineage preserved and shared among gardeners who valued its ability to thrive when summer sun would normally trigger bolting in standard butterheads.”