Ended up finding some nice little advanced Thyme last friday and got them in. The were at a little Seventh Day Adventist stall out the front of an old garage and were only two bucks each. I have a couple of big bags of a good potting mix but can never help myself and added some goodies, I'll list them.
Wetting agent granules
Water Crystals
Controlled release pelletized fert
Trace Elements (because the fert I have is basically just N, P and K)
Far from organic, but I've been making my own mixes for more than ten years and this stuff is the gear. Usually I'd add Peat Moss too, but don't have any at the moment. I gave them a drink with a fish and kelp liquid fert to settle them in and will probably continue every couple of weeks with that