Would have been best to do this last autumn, but you can chance it now - make sure you get a good rootball, and water well. However, if the plants are more than 3 years old, recommend you get rid of them and buy more. Their useful life is only about 5 years anyway, after which they get leggy and woody.

Thank you Bamboo, think I might just replace instead.

You could take cuttings from the plants you have, a bit later in the season.

Thank you Beattie.

You're very welcome Vanessa! :-)