Picea omorika ‘Nana’ (Dwarf Serbian spruce)

This hemlock cultivar makes a very beautiful specimen, slowly forming a 10- to 15-foot-tall and 30-foot-wide, multi-layered mound of greenery. Its horizontally speading branches are covered with smaller weeping branches clothed in short, dark green needles. It looks great growing over a rock wall, in a rock garden, or by water. Its size may be controlled by regular clipping.

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'Procumbens' is similar to 'Pendula' in color but prostrate in habit, with cascading branches sometimes staying stiffly horizontal. Makes a spreading, undulating, mounding ground cover of silvery white needles.

'Schubert' choke cherry, with its vivid foliage and pyramidal form, makes a fine focal point. Ephemeral, light pink flowers are followed by abundant, dark red-purple fruit that birds love. (Don't plant it near patios or walks, as they'll quickly be covered by bird droppings.) If the tree you buy isn't grafted onto nonsuckering rootstock; otherwise, suckers could become problematic as the years go by. -Ron Smith, Regional Picks: Upper Plains, Fine Gardening issue #120

This evergreen, coniferous tree has flattened sprays of scale-like adult leaves. 'Heatherbun' has soft, blue-green juvenile foliage that turns plum to bronze in winter and a compact, rounded form.