Romaine Lettuce - Parris Island Cos - Crisp, vitamin rich leaves - Fresh Seeds

Romaine lettuce Parris Island Cos is a standout variety, appreciated for its impressive crunch and strong resilience. This mid early type is well suited to growing from spring through to autumn. It forms tall, elongated heads made up of large, juicy, crisp green leaves with a gently oval shape. The flavour is mild with a subtle, lightly nutty note, making it ideal for fresh salads, healthy sandwiches, and light lunch dishes. It also stays fresh for a long time after harvest, which makes it a practical choice for storage and sale.

Sowing depth

Sow Romaine lettuce Parris Island Cos seeds at a depth of 0.5 to 1 cm. This supports quick, even germination and healthy early growth.

Direct sowing outdoors

The best time to sow outdoors is from April to June. Use light, free draining soil that is rich in organic matter and slightly moist. In these conditions, seeds germinate quickly and seedlings develop strongly.

Sowing under cover

Under cover, such as in a tunnel or cold frame, sowing is best done in March or April. This helps you achieve an earlier crop and enjoy fresh, crisp lettuce in the first weeks of summer.

Planting out

Transplant seedlings outdoors from April to May. Choose a sunny spot or a lightly shaded position, which supports even growth and the formation of well structured heads.

Spacing

Space plants about 30 x 30 cm apart. This gives each plant enough room to develop and form regular, full heads with excellent flavour and crispness.

Harvest period

Harvest from July to September. Picked at the right time, the heads keep their quality and flavour even after a few days of storage.

Growing tips

Parris Island Cos is known for its strong resistance to bolting, so it keeps a compact structure and a mild taste for longer. It is a reliable choice for home gardens and larger scale growing. It performs best in moderately moist conditions, in fertile soil rich in humus. Its durability and ability to stay fresh during handling make it popular with both dedicated growers and keen gardeners.

Why buy from GardenSeedsMarket?

At GardenSeedsMarket you get premium seeds that are fresh, carefully selected, and tested for germination. This gives you confidence that your crop will be productive and successful. You also benefit from fast, secure dispatch and expert advice.

Pack contents

The pack contains 1 g of seeds. The packaging includes growing guidelines and the sow by date.