This helps the lettuce roots absorb nutrients better and keeps the soil moisture balanced. Since iceberg lettuce has shallow roots, avoid using heavy soil, which can trap water and lead to root rot.

The research identifies optimal growing media that support healthy root systems and vigorous transplants ... Enhancing Freeze Tolerance of Field-grown Lettuce with Salicylic Acid, Ascorbic ...

A group of boys is growing and harvesting lettuce in the school’s hydroponic garden. The initiative showcases this innovative approach to gardening and how STEM and agriculture go hand in hand.