I was wondering if I could get some tips on sowing Catnip seeds? I can normally get anything to germinate or root and I was so excited for catnip. I assumed that the seeds just weren't viable, although the expiration date on the pack wasn't due for another 2 years.

I put 3 containers in greenhouse conditions, 3 more in the garden in normal settings and 2 other containers indoors. I live in Puerto Rico (Zone 12-15) It's always very humid and hot. We don't really get rain in my part of the island.

Any tips?