Md. Code, Local Government § 13–408

(a) The County Commissioners of Washington County may adopt

regulations for restricting the growth of nonnoxious weeds on real property in

Washington County.

(b) The County Commissioners of Washington County may provide that

unpaid charges made against real property for the removal of an unauthorized

accumulation of weeds and debris from the property are a lien on the property until

paid.

(c) The County Commissioners of Washington County shall provide

reasonable notice to the property owner that a lien may be imposed under subsection

(b) of this section before the removal of weeds or debris from the property.