How to Grow Lettuce on a Wall

Using a tape measure, space L brackets 3' apart centered on the wall where the gutter will be placed using 2 #12x1-1/2" screws per bracket. Space gutters between 12"-18" apart to allow plenty of room for lettuce seedlings to grow.

Wearing gloves, place gutters on the ground and place end caps on the gutters to retain the soil.

Set galvanized gutters on L brackets. The weight of the soil and plants will hold the gutters in place so there is no need to drill additional screws into the bottom of the gutters unless you feel it is necessary. By not drilling additional screws into the bottom of the gutters, you are also allowing for easy removal of the gutters during the winter months for storage.

Line gutters with 1" pea gravel then fill the remaining space with a good potting soil blend. The pea gravel is used to help aerate the soil and to allow for proper drainage.

Remove lettuce seedlings from planting containers and plant to soil level 6 to 12 inches apart. Keep in mind lettuce grows best during the cooler months of spring and fall when temperatures are between 45 and 65 degrees. If planting lettuce seeds, plant to a depth of 1/4 inch, cover lightly with soil and water.

For best results, plant lettuce in a cool and shaded area to prevent wilting.

Lettuce has a shallow root system so water regularly at the soil level and harvest when plants have reached their maturity (anywhere from 40-60 days depending on variety). To re-plant gutters, simply remove the old root system and add new lettuce seedlings. If you would like to start lettuce from seed, add a little more potting soil and follow the directions on your seed packet.