IrisLilli said:If you do not mind doing a bit of work yourself, you can make your own standard roses from ordinary roses and avoid the problem with the frost sensitive top graft.
I've done this with 'H.C. Andersen', 'Twice in a Blue Moon', 'Pascali' (aka 'Lenip') and 'Novalis', so they take up less room in my beds. All you need is a rose, which grows strong canes and the rest is pruning. With a bit of luck it can be done in one or two growing seasons - and I am no rose expert!