Plastic is plastic and fake is fake.
Buy a real topiary bush or tree and learn how to look after it.Its not that hard to do.
Ilex Nellie Steven aka Hollyball trees are what you want,especially for their lovely white flowers in summer and then festive red berries at this time of year.We have 2 large hollyball trees on each side of our front door.They cost over 200 euro each from Howth Garden Centre,due to their large size and training time to grow to that size and shape.The trunks themselves are 4 feet tall and then the actual hollyballs themselves are 2 feet in diameter.So 6 feet in total height.In other words,they are big.
They are very hardy and tolerant of shaded,cold and damp conditions too.They also look wonderfull with year round dark glossy evergreen leaves.
As with any topiary tree or bush you need to look after it and give it good drainage and a regular feed to

ver watering is worse than underwatering so bear that in mind.Also you need to increase the pot size as the topiary shrub grows and the roots expand.Rootballing can also kill off a topiary shrub.Also check the rootball for vine weevils or vine weevil grubs.If you find any then remove them and squash them dead,and also feed the rootball and soil with a vine weevil liquid feed that will help to kill off any remaining weevils.Vine weevils eat through the root system of a plant,so no roots means no plant.
Our hollyball trees are self pollinating so no need for a male and female tree,they are allowed to grow bigger and out of shape in the summer months so that they flower,and then we clip them back a bit with a topiary shears in the wintertime to reveal the festive red berries that grow from the white flowers.We give them a liquid feed 3 times a year mainly in spring and summer months.
John Innes No3 soil mixed with some farmyard manure is great for topiary trees and bushes that will be placed into large pots.Also mix in some grit and some slow release plant food and you will be onto a winner.
https://www.flickr.com/photos/127582733@N07/15873031680/
https://www.flickr.com/photos/127582733@N07/15874229579/