Lettuce seedlings not growing!

Hi Sal. Did you harden them off? That means gradually getting them used to being outside, you do this by leaving them outdoors during the day then bringing them back in overnight for a week or two depending on the weather. If you don't do this it shocks the plants and they sit around and sulk for days maybe weeks before getting going. If this is the case, you will just have to wait, a bit of warm weather might spark them off into grwoth.

 

So maybe its the soil you have put them in or the position. Lettuces don't like too much direct sunlight (we've not had much of that recently so its unlikely to be that). Perhaps your soil is a bit poor, whats it like - is it clay or sand or what? And did you put any fertilizer down as well?

 

I would say its more likely the clay soil than direct sunlight.

It depends what you have done with your soil. Clay does need plenty of organic material (compost/manure) adding to improve it i.e. help it to retain water better and to build up a store of nutrients for the plants to feed on. Clay can also be poor at draining water away, so the lettuce roots may be waterlogged.