(60 days) Flavourful pale centres are surrounded by thick green outer leaves on enormous upright plants. Parris Island Cos romaine lettuce seeds can be planted close together for a long harvest of little leaves for gourmet salads. Given space and time to grow to full size, Parris Island forms huge heads up to 30cm (12″) tall, but even at this crazy size, the leaves are tender and succulent, with mild flavour.
Sow seeds outdoors as soon as soil can be worked in spring. Plant seeds 1" apart and 1⁄4" deep. Seeds will germinate in 7-14 days. Thin to 6-8" apart for Looseleaf, 10" apart for Romaine, and 10-12" apart for Crisphead. Sow continuously for a constant supply of lettuce. Lettuce is best grown in cooler weather and prefers full sun or partial shade.