Leafy green

Cos Lettuce

Lactuca sativa (Longifolia)

Upright romaine — sweet crunchy ribs, the Caesar-salad classic.

Sun

Full to partial

Water

Regular

Soil

Rich

Difficulty

Very easy

Container

Yes

Edible part

Leaves

Lifecycle

Annual

Hardiness

Hardy

beginnersummercrisp

Plants well with

Where to source

Get growing in United Kingdom

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Thompson & Morgan

Stocks cold-hardy cos varieties suited to London's shorter growing season and cool springs.

Crocus

Offers deep pots ideal for cos lettuce's long taproot in London's damp climate.

Amazon UK

Provides quality hand tools for frequent harvesting and weeding in intensive London gardens.