[nyrfan]

2 weeks at 83 degrees & not up yet is not a good sign.

I would try again, to be on the safe side.

Use a different pot or tray, not the same one. Avoid planting too deep & keeping the starting medium too wet.

Finally, packaged for 2018 doesn't necessarily mean they were harvested last year. They could be from 3 seasons ago & already near the end of their viability, particularly if purchased from a garden center seed rack.