Yes. They are supposed to be fresh. I checked the expiration dates before buying in March. They are good until Dec 2014, I believe. I've been using up many of my cells, planting more seeds every week. But I tried a different container with plastic lid that my purchased salad greens come in. I had a theory that maybe those greenhouse kits aren't so great for some things. Tried milk jugs. Ran out of those to cut up. Still need some intact to hold the frost/wind cloth in place because when filled with water, they have smooth edges and don't shred the cloth.
I save almost everything that can hold water. I've even grown some stuff in cardboard boxes in the past when I got ahold of sturdy ones. Only need them for a season and then they chop up easily for the compost pile. Have a long 4' box I received my potato growing tubs and fencing from amazon I'm tempted to use for something. Deep enough for more carrots or beets, I think. I can't make myself throw a strong box in the garbage or recycle bin without putting it to use first.
