Summer and fall head lettuce variety trials

Farmer: Angie Koch, Ann Slater, Lise-Anne Léveillé, Jon Gagnon, Laurie & Corey Ahrens, Martina Schaefer, Hilary Moore, Harold Saunders, and Sarah Judd

Farm: Fertile Ground Farm, Ann Slater Organics, Beet Box Cooperative Farm, Earth to Table Farm, Edible Acres, Spiral Farm, Maplelane Farm, Saunders Family Farm, Meadow Lynn Market Garden

Region: Ontario

Publish Date: November 11, 2021

Article Type: Research Project

Research Priorities: Seed Production, Selection & Breeding 

The growers’ objective was to document the best summer and fall head lettuce across different farms throughout southern and eastern Ontario during the 2020 season.

In a Nutshell

  • Magenta, Muir, and Nevada were the top varieties with respect to overall vigor, flavour, and germination in the summer.
  • Green Star was the growers’ least favourite variety overall in the summer.
  • Magenta, Ruby Sky, and Red Mist (from Vitalis Organic Seed) were the top varieties with respect to overall vigor in the fall.
  • Encino was the growers’ least favourite variety overall in the fall.
  • Red Mist (from another seedhouse) had poor germination rates, demonstrating that seed source – and not just variety – matters.