The soil in the flood plain of the Tehuacana is considered to be part of the Trinity Series. This series consists of very dark calcareous clayey alluvial soils. The soil is considered to be very heavy but crumbly and has excellent tilth. Sediments from the Blackland Prairie areas compose most of the flood plain soil. The area is considered to be successful in the production of crops such as cotton and corn and useful as pasture land.
Native vegetation includes forest areas, mainly composed of elm and hackberry.
Other soils present in the Tehuacana Creek area include he catalpa series. Soils of this series are found in the outer boundaries of the floodplain. This soil is considered to be limy and crumbly clay, which goes several feet deep. It is grayish-brown calcareous alluvial soil made of stream sediments.