Lettuce - Cos

Common Name:
Lettuce ‘Cos’

Description:
Lettuce ‘Cos’, also known as Romaine lettuce, is a popular and versatile leafy vegetable valued for its upright growth habit and crisp, elongated leaves with a refreshing, mildly sweet flavour. Forming loose, upright heads, this variety features sturdy ribs and tender green foliage, making it ideal for salads, sandwiches, and wraps. Well-suited to Melbourne’s climate, Cos lettuce thrives in full sun to part shade with fertile, well-drained soil and consistent moisture for optimal leaf development. It performs best in cooler conditions and can be grown across multiple seasons with succession planting to ensure a continuous harvest. Fast growing and easy to cultivate, it is perfect for home gardens, raised beds, and container growing. Regular harvesting of outer leaves or whole heads encourages productivity and freshness straight from the garden.

Form:
Shrub - Clumping / Grass-like / Mounding

Mature Size:
Height: 20–40 cm
Width: 20–30 cm

Aspect:
Full Sun
Part Shade

Flowering:
Does not flower

Flower Colour:
Not applicable

Key Attributes:
Edible Fruit
Fast Growing
Herbaceous
Annual
Suitable for Pots

Toxicity:
Non-toxic and safe for human consumption.

Companion Plants:
Carrot
Radish
Spring Onion
Beetroot
Strawberry