Soil Types

Hello everyone!

Can anyone help with a resource to identify my correct soil type? I live in Plano, TX (75024). We have a lot of black clay in the soil, and I’m trying to determine if it is “Clay” , “Clay Loam”, or “Silty Clay”.


Hi @stlouis22,

With soil type, are you have trouble determining the soil type for the entire yard or just one zone? The USDA has a shared resource with the USGS to generate a Web Soil Survey (WSS) for your address which will tell us with type of soil is found in your area naturally, however most landscapes have soil amendments added to provide a better environment for roots to grow in.

Let me know if you need any help with the WSS.

@stlouis22 @emil We have a great resource from Delta-T Devices that sent us this information:

“There is a useful table on page 107 of our HH2 meter user manual, downloadable from our website.”

Here is the webiste URL:

This is the flow diagram:

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That’s an awesome table! Big thanks to Delta-T Devices for sharing it with us.

Here’s an old gardener’s trick to determine soil type. Oops, make that an old trick, not old gardeners. Here’s a link to the Colorado State University Master Gardener Program:


@sunny Thanks for the tip, and Go Rams! My Alma mater :wink:

David - I too live in Plano - East Plano (75074).
Have you determined what is your soil type? Mine likely would be similar.
I haven’t been able to figure out from the resources others have pointed to.

Thank you for the link and table.