Washing the roots helps to remove any pests such as slugs or snails that are likely to nibble on the plant over winter.
Next, Monty plans to turn the roots upside down and leave them in a crate overnight.
The reason gardeners do this is to get any moisture out of the stems.
The moisture doesn’t just come from washing the plant, but from the stem itself.
Once the plants are dry, they are ready to store for the winter.
To store them properly, they need to be packed in a crate root first, with the stems facing up.
The crate has a sheet of newspaper at the bottom and newspaper wrapped around it to protect the dahlias from the cold and to keep them from drying out.