Lettuce – Parris Island Cos



Parris Island Cos Lettuce is a vigorous, upright romaine with dark green leaves and a dense, white heart. Very uniform and resistant to bolting, tip-burn and mosaic virus. Our go-to romaine for summer salads. Named for Parris Island, South Carolina and bred at Clemson College’s Agricultural Experiment Station.

Days to Maturity: 65
Latin name:
Lactuca sativa
Life cycle for seed saving:

Planting Instructions:
Plant Parris Island Cos Lettuce Spring through early Fall. Optimal soil temperature for germination is 70-85°. Planting depth: 1/8”. Full heads – start indoors and transplant at 12”, or direct seed every inch and thin to 12”. Baby leaf- seed 4-5/inch with 5” between rows.

All of our seed is Non-GMO and Certified Organic by Washington State Department of Agriculture. We grow the majority of our varieties here at Deep Harvest Farm on Whidbey Island while we purchase the rest from other small, organic Northwest seed growers. Finally, all of our offerings are open-pollinated (OP) so that you too can save and share seed from these plants!