PatternBaseRomaine Lettuce
Lactuca sativa var. longifolia, Asteraceae
Zones
2a–10b
Layer
Herbaceous
Lifespan
Annual
Growth
Fast
Guild Roles
Producer
Growing Conditions
Sun
Partial Shade (optimal)
Water
Moderate
Soil pH
6 – 7
Tolerances
Drought
Frost
Heat
Pest Resistance
Disease Resist.
Companion Plants
Antagonistic Plants
Butterhead LettuceLactuca sativa var. capitata
Different lettuce varieties compete for similar root space and light when planted too closely together
English WalnutJuglans regiaRomaine lettuce is highly sensitive to walnut juglone, showing rapid wilting and death when grown near walnut trees.
Swiss ChardBeta vulgaris var. ciclaLettuce and chard can compete for light when chard grows tall and shades lower lettuce plants
Uses
Functions
Food
Edible Parts
Leaves
Common Questions
What zones does Romaine Lettuce grow in?
Romaine Lettuce grows in USDA hardiness zones 2a through 10b.
What are good companion plants for Romaine Lettuce?
Good companions for Romaine Lettuce include Broccoli, Chinese Broccoli, Black Radish.
Design guilds with Romaine Lettuce and see companion relationships visually.
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