I'm using a crappy soil ph test kit that you add water to and drop a little tablet into. I wish I would have gotten the one that you just stick into soil and read ph, temps, and whatever else. They seem to be looking really good today and will be getting their first watering also.I think you'll be fine!! Keep updating to see how well they go in that ffof. The soil ph meter measures temps in soil too, keep an eye on that but the majority of time this devices are not exact...