Lettuce From Last Year in a Miracle Gro Soil Bag????

This is what my bag of Miracle Gro lettuce looks like this year. I found this idea on Pinterest, Miracle Gro Bag of Lettuce , some time ago. The difference in mine was that I used an old wheelbarrow to hold the bag so I could roll it in and out of the garage until it got established. I also used Mesclun seed instead of lettuce seed.

Funny thing is, I didn't sow new seeds. I ate the lettuce I had last year, it regrew, then I let it grow tall and go to seed. I left it out in the elements all fall and winter long (bad me) and it has rewarded me this Spring. It takes a licking and keeps on ticking!