Organic Garden Selections

Lettuce – Cos (Romaine) (Heirloom)

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Lettuce – Cos (Romaine) (Heirloom)

(Lactuca sativa var. longifolia)

Crisp, refreshing, and full of flavour, Cos (Romaine) lettuce is a timeless garden favourite known for its tall, upright growth and sturdy, elongated leaves. This heirloom type forms compact heads with a tender inner heart and crunchy outer leaves, delivering the classic texture that makes it a staple for salads and wraps.

With its naturally sweet, slightly robust taste and satisfying crunch, Romaine is perfect for everything from fresh garden salads to traditional Caesar dishes. The upright habit keeps leaves cleaner and well‑formed, while the dense heart stays pale, tender, and full of flavour.

Reliable and easy to grow, Cos lettuce performs well in cooler conditions and tolerates warmth better than many other varieties, making it a dependable option for extended harvests. Whether grown in garden beds or containers, it produces consistent, high‑quality harvests with minimal effort

Also makes for a pick & go - 

🌿 Why You’ll Love It

  • Classic upright romaine type with excellent crunch
  • Sweet, clean flavour with a firm, juicy texture
  • Forms dense hearts with tender inner leaves
  • More heat‑tolerant than many lettuce types

Ideal for salads, sandwiches, and fresh harvesting

🌱 Growing Tips

  • Best planted in spring or autumn for optimal flavour
  • Prefers rich, well‑drained soil with steady moisture
  • Benefits from partial shade in warmer conditions
  • Harvest outer leaves regularly or cut full heads once firm
  • Succession sow every few weeks for continuous supply
  • Pick‑as‑you‑go — simply harvest the leaves you need and let the rest keep growing

 

🌱 Plant Details

  • Botanical name: Lactuca sativa var. longifolia
  • Plant type: Leaf vegetable
  • Position: Full sun to part shade
  • Harvest: Approx. 60–75 days 
  • Seed type: Heirloom / open‑pollinated
🥬Sowing instructions 
  • Sow: Spring & autumn
  • Depth: 3–6 mm (lightly covered)
  • Sun: Full sun to part shade
  • Soil: Fertile, well‑drained
  • Germination: 7–14 days
  • Approx. 400 seeds 

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