Patience is an essential gardening virtue you need to cultivate! 8 mins is not long to wait before getting out of your pram.
You need something to guide them till they get the idea once they're in the branches.
Plant the rose at an angle and away from the trunk as this will provide too much competition for light, moisture and nutrients. Train the rose up a pole or maybe some rope to the lower branches of the tree. Keep it well fed and watered while it gets established. Once it's in the canopy it can make its own way by itself.
"We don't stop playing because we grow old; we grow old because we stop playing." - George Bernard Shaw
You could try gently tying the long branches to the tree trunk using twine or Soft-tie stuff as far as you can reach. Thereafter it will climb mostly by itself using the thorns to anchor itself to the tree.
Most ramblers would probably be too vigorous for such a young tree and you would need to cut back a lot of the annual growth to stop it swamping the tree. Having said that you could go for one of small ramblers but the issue then would be that it wont give you the look you want once the tree has matured
If you have a garden and a library, you have everything you need.”—Marcus Tullius Cicero
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You need something to guide them till they get the idea once they're in the branches.
Plant the rose at an angle and away from the trunk as this will provide too much competition for light, moisture and nutrients. Train the rose up a pole or maybe some rope to the lower branches of the tree. Keep it well fed and watered while it gets established. Once it's in the canopy it can make its own way by itself.
I've been gardening for about forty years, but never tried to grow a rose up a tree before - time to hope for the best.