10"x Diameter 0.27" Soil Probe Stainless Steel Soil Sampler Probe Soil Moisture Probe for Plants No Batteries Required Moisture Meter for Plant Garden Farm Soil Sampling

I use a soil probe. This brings a small sample of soil from near the bottom of the pot. You can squeeze it and see how well it holds together. Sometimes when the soil is very dry nothing comes up. Soil Probe