Care
Ideally hang to store so as to not flatten the bristles. When the broom head starts looking tired and worn, give the bristles a quick bath in some warm, soapy water to clean, revive and refluff your broom, avoid getting the wood wet and dry with the bristles laying flat.

End of life
Cut the bristles off and throw into the compost bin at the end of the brooms life to breakdown naturally then you can re-use the handle as a garden stake