Both living and artificial topiary can work in shade. Living plants are harder to keep dense there, but artificial foliage lasts longer because sunlight is the only thing that ages it.
A shaded terrace. Shade is easy on artificial foliage and harder on living plants than people expect.
Shade makes a living topiary looser and slower
In shade you cut less often, but the shape stays less crisp between cuts.
A plant in shade puts out fewer, longer shoots reaching for light, so the surface becomes looser and less dense. Interior foliage also thins, so a plant clipped hard in shade can show its stems where the same plant in sun would not.
Shade keeps foliage wet for longer, which encourages fungal problems, especially in a damp climate. In a shaded, still corner the answer is airflow rather than a spray, which is the same conclusion the disease guide reaches.
Which plants tolerate shade
Boxwood is one of the better evergreens for shade, and it will grow in part shade without complaint. Full, deep shade under dense tree canopy is a different matter: expect thin, open growth rather than a tight clipped surface.
Ivy is the shade specialist. It is a woodland climber by nature, so a shaded courtyard is closer to its native conditions than an open border, and it will cover a frame where boxwood would thin out. Our live ivy topiary page covers what that involves.
Mossed pieces prefer dappled or partial shade to full sun, so shade suits them. Moss stays damp longer in shade, so give the piece drainage underneath and avoid standing water.
Podocarpus and yew handle shade better than many alternatives if boxwood is not working for you.

$155. Boxwood: fine in part shade.

Quoted. Podocarpus: for shade where boxwood struggles.

Quoted. Artificial: shade is the easiest position it can have.
Where shade is an advantage
Put the best pieces in the sun and economize in the shade if your budget will not stretch to top UV specification everywhere. Ultraviolet is the main thing that ages artificial foliage, so a lower grade lasts longer under a porch roof, in a courtyard or on a north-facing entrance than on an open terrace.
It will still get dirty and take knocks. But it will fade more slowly. The reasoning is set out in what the position decides.
Preserved foliage needs no light at all, so shade is simply normal for it. Keep it out of the direct beam and a shaded interior is ideal rather than a compromise.
Indoors, low light and darkness are different problems
A room with a window that never gets direct sun is shade. A corridor with no window is darkness, and no living plant will hold a clipped shape in it indefinitely.
With usable daylight, a shade-tolerant plant can work if you are patient. With none, the honest options are preserved or artificial. Pretending otherwise produces a replacement schedule rather than a plant.
For help choosing and specifying pieces for commercial spaces, read specifying topiary for a commercial interior.
How to look after a shaded living piece
Cut less, and later. Growth is slower, so a shaded plant often wants one proper cut a year rather than two. Judge by the plant rather than the calendar.
Cut less hard. Interior foliage is thinner, so taking a shaded plant back to the same depth as a sunny one risks exposing bare stem that will be slow to recover.
Give it air. Space between plants, and nothing crowding it at the base.
Water less. Shaded soil dries slowly, and overwatering in shade is a common way to lose a plant that was coping fine with the light.
Questions we get asked
Will boxwood grow in shade?
In part shade, yes, with slower and slightly looser growth. In deep shade under dense canopy expect thin, open growth rather than a tight clipped surface.
What is the best topiary plant for a shaded courtyard?
Ivy. It covers a frame where boxwood would thin out, and it is the traditional choice for a shaded courtyard.
Is shade good or bad for artificial topiary?
Good, and it is the best position it can have. Sunlight is the only thing that ages the foliage, so a shaded piece can be a lower grade and still look right for years. It will still get dirty and still take knocks.
Can I put a living topiary in a windowless room?
No. A room with a window that gets no direct sun is shade; a corridor with no window is darkness, and no living plant holds a clipped shape in it. Preserved or artificial are the honest options there.
Should I cut a shaded plant differently?
Yes. Cut less often, since growth is slower, and less hard, because interior foliage is thinner and exposed stem recovers slowly in shade.