Cover your shaded soil in an evergreen carpet by choosing to plant bugle these hardy perennials grow densely in almost all soil types creating an impenetrable mat of evergreen foliage which cannot be invaded by weeds ajuga reptans f albiflora 39alba39 is a particularly distinctive variety for in the late spring it produces spikes of dainty white flowers which are attractive to gardeners and pollinating insects alike a perfect addition to any border woodland area or rockery height