Songbird Flower Seed Mat

Is there a “packed for season” or “best if used by date” on this?

If this a current year product I’m interested, but if it’s last year’s package, then not so much.

These seed mats are packaged at the beginning of every season. These specific mats were packaged the first week of February with the anticipation of shipping mid March. They ship and are packaged in irrigated pouches so the seeds can always breath.

What zones are best for these plants?