Harvesting the
roots of burdock (and sheep sorrel) requires the use of the good old Garden Fork if you want to get almost all of the roots.
You just plunge the fork down into the soil about a foot from the "crown" at ground level, then push down so the fork tines lift towards the plant, this will have to be done all the way around the plant then you
should be able to lift it to shake the soil from the roots.
Roots are best stored dried, we air dry for a few days then I place them in a dehydrator cabinet for around a week because I place the whole root including the crown stem to make sure I have every part of the burdock I need for medicine making.
Sheep sorrel is about the only herb that you usually use the whole plant in recipes so you don't do any cutting off of any part of the above ground portion and you want to lift all the roots you can, just like you lift the roots of the burdock plant.
Drying can be done completely in the sun (if you are lucky
enough to have at least five days straight of sun) or it can be started in the sun then move the plants to a dehydrator to finish off, or you can simply use the dehydrator for the whole drying process.
Once roots are dried you want to keep them in an air tight container (I use quart and half gallon sized mason jars or a desiccant jar with a grease seal).
Redhawk