Lettuce in Cold Frame???

I have a problem.... I can not turn down free plants. It doesn't matter if I have space to plant to them... I just simply can not turn them down.

Last night our professor offered us lettuce, cabbage,  and broccoli starts.  I do not have a garden to plant them in but how could I turn down free plants???

I was conservative I only brought home three types of lettuce and some cabbage... that's not bad right?

Free plants ... Lettuce and Cabbage

On my hour drive home from class I started thinking where could I put these new plants. I have a cold frame out back and decided to give that a shot.

Went to Target and bought clear plastic shoe boxes and drilled six holes in the bottom of them thinking they might make good containers or trays for my lettuce. At $1.22 a piece it was worth a shot

Plastic Shoe boxes  with holes for drainage

Then I simply filled them up with potting soil and stuck in the lettuce and cabbage. I have a feeling the cabbage may get a little bit too big for its britches in the box, but it is worth a shot.  Had a few extra cabbage plants so I put them out in the front with a *FREE* sign. I guess we'll see who else likes free plants 

Anyone else want some free plants? 

. I'm hoping this works and I can have some fresh lettuce and salad all winter long. Anyone else have any luck growing lettuce this way?