( Prickly Pear) - a term used in nursery industry to mean a tree or shrub large enough to significantly impact a landscape; a large, conspicuous plant.

a plant placed where is will give the greatest enjoyment from the color, texture, or scent.

Ornamental plant, normally a tree or shrub, grown in a prominent position, to show it off at its best.

An individual tree or shrub that is selected, tended and placed to be viewed as a sculptural form.

a single large plant in a conspicuous location in the garden