Maintenance. All landscaping materials for a subdivision
or land development shall be installed in accordance with the landscaping
plan. Final installation of all such landscaping material shall be
subject to the approval of the Township Engineer. A maintenance period
of 18 months shall be required to assure the proper establishment
of all landscaping, during which 15% of the required security shall
be retained for the purpose set forth in this article. Improvements
security shall include the cost of said materials. During the maintenance
period, the developer shall replace dead trees and dead landscaping.
If the particular season makes such replacement unfeasible, then it
shall be accomplished within a reasonable period of time not to exceed
six months thereafter.