In a way, I was quite right because there are still no signs of carrot or lavender seedlings to date. The only thing that worked are the radish seeds. I have grown the long white tropical ones before but these red round ones are my first. I always thought they can only do well in cooler climates.
Granted, the weather has been very cool lately, I'm still surprised at how well these babies are doing in this humidity.
I've also had lots of success growing arugula (rocket), so it only goes to show that you'll never know unless you try.