Romaine lettuce is also commonly known as cos lettuce. It produces a large, tall, and upright loose head of elongated leaves with a thick midrib and sweet flavor. While most well-known for long ...

Cos lettuce is a summer lettuce; it is heat tolerant and will stand full sun. Iceberg type lettuces are cold tolerant, they ...

Use them to make an authentic Caesar salad. You can also use Cos in stir-fries. Copyright © 2025 BBC. The BBC is not responsible for the content of external sites ...