"Forget-Me-Not" key didn't start

Last month I found the forget-me-not seed key that we got in the mail last fall from volvo after our OSD trip.

I tried planting it next (but about 8" apart) from some marigold seeds.

It's one month later, and the marigolds are now starting to die in the summer heat, but the forget me not's never bloomed. No growth, no seedlings, nothing.

I just put the key, intact, flat in the ground, watered the seeds normally. Just a nice blank patch in the ground.

Has anyone else gotten this OSD trinket to grow?