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

Romaine Lettuce (Cos) Seeds

51 Products
Sort By:
High-performance romaine for hydroponics.
Old variety with modern adaptations.
Fast-growing blonde romaine for baby leaf and full-size heads.
Attractive green leaves with red speckles.
Heat-tolerant romaine for long, uniform hearts with good flavor.
Classic romaine with modern disease resistance.
Most attractive green romaine packs and handles with little damage.
Heat tolerant, full-size romaine.
Crunchy, snackable, stackable mini cosberg.
Old variety with modern adaptations.
Open mini romaine with crunchy texture.
Crunchy rib with an iceberg look.
Bolt tolerant, widely adaptable with open habit suited for heads.
Versatile mini romaine with sweet flavor.
The standard green romaine for baby leaf, adds texture to salad mix.
Attractive, ruffled romaine that retains its red color in low light.
Crunchy, snackable, stackable mini cosberg.