Romaine Lettuce Seeds - Organic Varieties | Johnny's Selected Seeds

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Romaine lettuce, also known as Cos lettuce, has long, broad, upright leaves that hold themselves bunched together as they mature. Although romaine varieties are well known for the hearts at the center of the heads, the outer leaves can also be used in salads, as a tortilla substitute for wraps, and are delicious grilled. Romaine lettuce is crisp and juicy, with a sweetness unmatched by other lettuce types. Choose from full and baby romaine varieties, as well as varieties suited to baby leaf production.

Full-Size Romaine (Cos) Lettuce Varieties | Comparison Chart (PDF)

51 Products

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Green Forest Romaine Lettuce (Cos)

Green Forest

Lettuce Seed

Most attractive green romaine packs and handles with little damage.

Gladius Romaine Lettuce (Cos)

Gladius

Pelleted Lettuce Seed

High-performance romaine for hydroponics.

Bluerock Romaine Lettuce (Cos)

Bluerock

Organic Lettuce Seed

Classic romaine with modern disease resistance.

Winter Density Romaine Lettuce (Cos)

Winter Density

Lettuce Seed

Old variety with modern adaptations.

Bluerock Romaine Lettuce (Cos)

Bluerock

Organic Pelleted Lettuce Seed

Classic romaine with modern disease resistance.

Outredgeous Romaine Lettuce (Cos)

Outredgeous

Lettuce Seed

Attractive, ruffled romaine that retains its red color in low light.

Xalbadora Romaine Lettuce (Cos)

Xalbadora

Organic Pelleted Lettuce Seed

Versatile mini romaine with sweet flavor.

Breen Romaine Lettuce (Cos)

Breen

Lettuce Seed

Early producer of truly compact mini heads with bronze-red color.

Tendita Romaine Lettuce (Cos)

Tendita

Lettuce Seed

Crunchy, snackable, stackable mini cosberg.

Carlsbad Romaine Lettuce (Cos)

Carlsbad

Organic Lettuce Seed

Crunchy, juicy, sweet romaine for baby leaf.

Riptide Romaine Lettuce (Cos)

Riptide

Organic Lettuce Seed

Crunchy rib with an iceberg look.

Xalbadora Romaine Lettuce (Cos)

Xalbadora

Organic Lettuce Seed

Versatile mini romaine with sweet flavor.

Riptide Romaine Lettuce (Cos)

Riptide

Organic Pelleted Lettuce Seed

Crunchy rib with an iceberg look.

Powerhouse Romaine Lettuce (Cos)

Powerhouse

Lettuce Seed

Crunchy, baby-leaf red romaine with narrow petiole.

Breen Romaine Lettuce (Cos)

Breen

Organic Pelleted Lettuce Seed

Early producer of truly compact mini heads with bronze-red color.

Powerhouse Romaine Lettuce (Cos)

Powerhouse

Organic Lettuce Seed

Crunchy, baby-leaf red romaine with narrow petiole.

Sale

Jericho Romaine Lettuce (Cos)

Jericho

Organic Lettuce Seed

Fast-growing blonde romaine for baby leaf and full-size heads.

Sale

Rouge d'Hiver Romaine Lettuce (Cos)

Rouge d'Hiver

Organic Lettuce Seed

Well-known French heirloom romaine.

Sale

Outredgeous Romaine Lettuce (Cos)

Outredgeous

Organic Lettuce Seed

Attractive, ruffled romaine that retains its red color in low light.

Sale

Reyes (3SX3901) Romaine Lettuce (Cos)

Reyes (3SX3901)

Organic Lettuce Seed

Fast-growing romaine for baby-leaf production.

Rabello Romaine Lettuce (Cos)

Rabello

Pelleted Lettuce Seed

Adaptable mini romaine for hydroponics.

Out Of Stock

Monte Carlo Romaine Lettuce (Cos)

Monte Carlo

Pelleted Lettuce Seed

Dark green, compact romaine for an all-season mid-size.

Monte Carlo Romaine Lettuce (Cos)

Monte Carlo

Lettuce Seed

Dark green, compact romaine for an all-season mid-size.