One thing that I have not discussed here is topiary care. A lot depends on what you’ve planted your topiary with, but topiary are unusual planters with their own logistical quirks.
Topiary care outside
Larger topiary, like Fred, can live in your garden as long as you’ve planted them either with annuals, or with winter hardy succulents like Hens & Chicks. I’ve seen rose cones suggested as a winter cover, but since these guys are kind of big, maybe a Styrofoam cooler would work. Either way, you’ll want to keep it in an area where it’s protected from snow and rain for the winter.