Upright plants of bushy habit and branching. You’ll find many suitable house plants and some in the wild.
Hedge
Tiny-leaved, bushy plants that can be set close together and clipped to shape. The tiniest boxwoods will also do if they are carefully thinned and each extra leaf is removed separately.
Flowering and Foliage Plants
Miniature house plants are best for these indoor gardens, although you can achieve temporary success with some annuals like alyssum.
Climbing and Trailing Plants
These are needed for training over walls, but even more necessary for planting at the container’s edge so they will fall over and softly blend the garden and the container.
Ground Cover
A cover for bare spots in the garden—get sheet moss from the woods. Or plant grass seed and keep it mowed with sharp scissors. Use your own ingenuity. You may very likely come up with something more appropriate.
Urns