VegetableLettuce
Winter Density Lettuce
Winter Density Lettuce is a French Romaine cultivar bred for year-round growing, thriving across hardiness zones 2-10 with exceptional tolerance to both frost and heat. Its compact, rounded heads grow 9-10 inches tall in just 50-55 days, producing tightly folded dark green leaves that remain slow to bolt even as temperatures shift. This variety's heads sit high on their stems and grow remarkably dense, making it both a reliable cold-season crop and a surprise performer during warmer months. Gardeners prize it for tender, sweet leaves that shine in gourmet salads and fine dining preparations.
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
TypeBush
Spacing
8
Plant Profile
Sunlight
Full Sun
Water
Moderate
Zones
2-10
Size
10in H x ?in W
Growth
—
Care
Moderate
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Highlights
Winter Density earns its name through genuinely impressive cold hardiness combined with unexpected heat tolerance, a rare pairing that lets you harvest crisp, sweet romaine leaves across seasons most other lettuces abandon. The compact 9-10 inch heads form quickly in 50-55 days without requiring excessive space, and their tightly folded structure means leaves stay tender and protected from environmental stress. Approximately 25,000 seeds per ounce means excellent seed efficiency for succession planting every 2-3 weeks, whether you're extending spring harvests into early summer or pushing fall crops deep into winter.
Common Uses
Winter Density Lettuce excels in gourmet salads and fine dining applications where its sweet, tender leaves and crisp texture become the centerpiece rather than a supporting ingredient. The compact heads can be harvested whole or leaf-by-leaf for extended picking, making it equally suited to single-serving preparations or larger composed dishes. Its slow bolting characteristic means you can harvest gradually without watching quality decline, a critical advantage when tenderness and delicate flavor matter.
Growing Timeline
No timeline data available yet for this variety.
Care Instructions
Start Indoors
Start seeds indoors 4-6 weeks before your anticipated transplant date, maintaining soil temperature between 60-70°F for reliable germination.
Transplant Outdoors
Transplant seedlings outdoors once they've developed 2-3 true leaves. Space them 8 inches apart in rows spaced 16 inches apart. Harden off seedlings gradually before transplanting to outdoor conditions.
Direct Sow
Direct sow seeds and use row cover to improve germination and prevent soil crusting. This technique is especially valuable for extended harvests; plant every 2-3 weeks to create continuous crops. Thin seedlings to 8 inches apart as soon as 2-3 true leaves have formed.
Harvesting
Harvest individual outer leaves once the plant reaches adequate size, allowing the inner leaves to continue growing for extended production. Alternatively, cut the entire plant about 1 inch above the soil level and you may receive additional harvests from regrowth. Check plants daily as they approach maturity, since all lettuce eventually becomes bitter as it begins to bolt. While individual leaf harvesting can extend the harvest window, once bolting begins, quality declines quickly.
Growing Calendar
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Companion Planting
Ecology & Traits
Edible
Scientific Classification
Lactuca sativa
Family
Asteraceae
Genus
Lactuca
Growth Habit
Bush
Native Status
L48 (I)PR (I)VI (I)CAN (W)