Our Lettuce Lobjoits Green Cos Seeds produce a traditional cos type lettuce with a large head, dense heart and crisp, succulent leaves. Suitable for spring or autumn sowing. Late sowings can also be over-wintered under cloches. A winner of the prestigious RHS Award of Garden Merit. Sow outdoors from March to July and September to October, ready to harvest from April to October. Average pack contains 750 seeds. Warning: Seeds should not be eaten. Store out of reach of children and pets. Always read the instructions before use.