Hi Don,
You are correct, this swap is for commercial seeds only. The system here at garden.org allows you to enter the seeds that you have to offer and the number of seeds that you are offering up for trade.. This allows players to decide if they want to trade a packet to get a packet of seeds with however many you are offering. I can tell you that If I am looking for a specific plant to grow, I'd be happy with 5 seeds. It only takes 1 viable seed to grow a plant.
The age of the seeds s the same. I ask that each player put a date that the seeds were purchased. Again, it is up to the person wanting your seeds to decide if they want to try out seeds that you are offering that may be older.
Hope this helps
Lisa
