HOLLAND, MI (WHTC) - Just in time for Tulip Time – tree trimmers? Crews contracted by Wolverine Gas and Oil will be clearing out all forms of vegetation along their underground pipeline from Niles to Ferrysburg, with work in the Holland area slated to begin today. The effort is aimed at removing trees and other plants whose roots could damage pipes. Holland city officials say that the project is expected to require 90 days to complete, with lawns being repaired within 30 days of that.