Moving rose trees

We have 2 rose trees in the garden which are approx 1.5 metres high and have been there for almost 4 years.
We will be moving in the autumn (August/Sept) and want to take the trees with us.
We will need to pot them as they will not go in to the new garden until next spring.
When would be the best time to take them out and pot them ready for the move, should we do it now before the growing season gets fully underway, or leave it until August.

 

There are multiple options

1. Dig them up and plant them in a pot If you want to preserve the whole thing. This is especially useful if it is a hybrid plant (forgive me, I don't know the proper english word for it) consisting of two different rose plants (Top half for the flowers, bottom half for a healthy root system).

2. If it is indeed a single botanical plant from top to bottom then you can cut it of a few centimetres above ground, dig out the roots and leave them outside in a damp towel or a paper box. No need to carry a lot of soil with you. The root stem is pretty hardy.
Just make sure you plant them again within a few weeks.

The first option is a lot more labor intensive but will give you about a yearlong headstart, whereas the other makes it a lot easier.

As for the perfect timing: I would say spring (so pretty much around now)

 

yes transplant now as you are running out of time to move ,,, if you move august they will die !! ... reduce the size of the plant by a quarter and then once potted up keep in the shade and out of strong winds , try and get a large root ball water the night before ..... no need to feed just make sure they dont dry out over the summer

Spruce