Understanding your soil: Clay content

Themeda Triandra handles both wet and dry clay soils

Now moisten the sample. Manipulate it into a shape (as if it is a piece of clay). If you can using your thumb and index finger make a ribbon of soil 7-8cm long then your soil has what I would call a “heavy clay” base. If you make a ribbon 2-4cm long then your soil is a probably a regular clay based loam. If the soil won’t hold a any form at all it is possibly a sand based soil.  You can further confirm these results by placing a handful of soil into a glass jar, filling the jar with water, shaking it up and then leaving it to settle. Once it has settled, you should get layers of sand, silt, clay and organic matter in the bottom of the jar equivalent to the soils composition.

Note: If you don’t have a garden base plan please refer to previous blog

Understanding your garden: Creating a Garden Base plan & site assessment 101

 

Ficinia Nodosa is a common landscape planting for its ability to tolerate a wide range of soil conditions