The term “cos” is a term for romaine lettuce and related types of lettuce. These lettuces have an erect growth pattern, with long spoon-shaped leaves that form a tight head pattern. Most are rounded-tipped varieties with a satisfying crunch. Varieties range from pale green to extremely dark red in coloration.
It’s also heat-tolerant while being more nutritious than iceberg lettuce. The hearts of the cos varieties can be used as celery substitutes (although they have a different flavor profile). Romaine lettuce is a classic choice for Caesar salad.
There are many, many types of lettuce available. Whether you prefer to grow lettuce that’s the salad standard of iceberg lettuce (crispheads), or a nice leafy green, there’s going to be lettuce seeds out there for you! Let’s go over some different kinds and see the differences so you can decide which seeds you’ll buy to grow your own lettuce.
