tore everything out of my front yard...yews,forsythia`s(sp.?),hostas,boxwoods...al l high maintenance,drab shrubbery tore out all the landscaping timber to boot... going small shrubbery,low maintenance.... the question is,i`m either going borderless(digging the "45 degree angle both ways" mulch break)...or i`m digging a trench and using heavy duty paver guides as a sort of border to keep the line neat.... they`re black,flexible and heavy duty....keeping them low to the ground so they aren`t easi...