Red and green romaine lettuce heads from some of Johnny's romaine lettuce varieties.

Romaine Lettuce (Cos) Seeds

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Old variety with modern adaptations.
Attractive green leaves with red speckles.
Compact, filled-out mini heads that are dark red even in the North.
Most attractive green romaine packs and handles with little damage.
Dark red romaine with contrasting red and green leaves, for full size.
Heat tolerant, full-size romaine.
Dark red romaine with contrasting red and green leaves, for full size.
Bolt tolerant, widely adaptable with open habit suited for heads.
Fast-growing blonde romaine for baby leaf and full-size heads.
Heat-tolerant romaine for long, uniform hearts with good flavor.
Bolt tolerant, widely adaptable with open habit suited for heads.
High-performance romaine for hydroponics.
Crunchy, snackable, stackable mini cosberg.
Heat-tolerant romaine for heads and hearts.
Crunchy, snackable, stackable mini cosberg.
Attractive, ruffled romaine that retains its red color in low light.