1.   -- Extend the life of summer containers by replacing waning summer annuals with fall ones and maintaining evergreen perennials.

2.   Ajuga, pachysandra, and vinca are well-known ground covers, all evergreen perennials.

3.   Bulbine, Bulbinella spp., is a clumping evergreen perennial with narrow, footlong aloe-vera-type foliage.

4.   Rosemary is an evergreen perennial available in upright or trailing forms.