Because you are growing indoors, you will need a pot, a light source ( led grow light ).

Growing lettuce indoors under lights. Lettuce grown indoors can be planted at any time of the year. Set the seed pots in a warm room, 70 to 75 degrees fahrenheit, to germinate. It was both simple and inexpensive to build.

This can come from a south facing window or grow light. The location you choose for your lettuce garden should be brightly lit—as in sunny—for at least 6 to 8 hours per day. Lettuce prefers soil around 60°f (15°c).

Place the pots under grow lights so the lights are positioned 6 inches above the top of the seedlings. You may end up doing both, depending upon the time of year. This means 5+ hours of sunlight hitting the plant leaves is recommended for.

Turns out, growing lettuce indoors under lights is not that difficult. And even though i still struggle to grow tomato and pepper plants in the house over the winter, i’ve. Potting soil (we used leftover “mel's mix” from our square foot garden experiment of last summer) lights (discussed more below) timer switch seeds watering method (we are.

Lettuce is a great plant to grow indoors, as it doesn’t require a lot of light. It will grow just fine with as little as two to four hours of direct sunlight per day. I maintain my lights about 4.

Choose where to grow lettuce indoors. Using my indoor garden shelf for leafy greens and herbs has freed up window space for my bigger plants. If you plan on keeping your plants on a windowsill that gets too cool or too hot you may need to come up with another location.