Here’s the first reading from the EasyBloom plant sensor for one of our tomato plants.
The result was pretty consistent with what I was expecting. Our soil seems to be a pretty heavy clay and so it probably doesn’t drain very well. I’ve been trying to put a lot of organic matter in the soil to improve it. Recently I added a bag of Kellogg Amend soil (which has compost and gypsum) to the entire garden area, but it seems it’s going to take more time and/or effort to get the soil in optimal shape.