When established, Eden should be heat tolerant to that degree. It is described as "heat-tolerant".
Growing large canes uses energy. Bind those at an angle of 30-45 degrees... and the rose will make laterals on the canes that should flower.
As for watering: dig a hole near the roots, put in a big plant-pot. When pouring water in the pot, the water comes directly at the roots and the topsoil will not close off. Do that less often than twice a day and extend the intervals. Later on when established, remove the pot and close the hole.

The "pot-method" works well too with Zucchini's (Courgette) and Pumpkins. In the pot You can fertilize too. Not the roses, for Rosaceae do not like fertilizers directly at their roots. Strawberries as being part of the Rosaceae family also do not like fertilizers on their root-system.

PS: I looked up my own rating for heat tolerant for Eden. I rated the rose in its youth as fair.
Now, I would rate it as good to excellent. For it stands at a hot place.