If any lot owner or owners shall neglect or refuse to plant trees as provided in this article for a term of 20 days after they shall be so, as aforesaid, notified and required by the provisions of this article, the Street Superintendent shall proceed to plant trees under the direction of the City Engineer as herein provided, and shall protect the same by either suit able fencing or boxing. The City Council shall order a special tax to be assessed against the lot in the immediate front of which the trees shall have been so planted and the tax shall be assessed and collected in the same manner as taxes for the construction of sidewalks. The work of planting the trees shall be examined and accepted by the Street Superintendent.
(`90 Code, § 19-56)