Natural, untreated and GMO-free seeds.
Always use fresh seeds because old lettuce seeds are unlikely to germinate well. Make small successive sowings every 2-3 weeks for continuous crops. Sow directly into the soil from early spring to mid-summer, creating a shallow trench about 1/2 inch (1 cm) deep using a cane. Sprinkle the seeds finely along the bottom of the trench, label the row and cover the seeds with soil.
Water abundantly using a watering can fitted with a watering head. Space rows 6 inches (15 cm) apart for smaller varieties and 12 inches (30 cm) for larger head lettuces. Seeds may not germinate well in hot weather, so do summer sowing in a lightly shaded location or during the cool of the evening.
