I've just bought my first property and while the trades do their thing on the house, I thought I'd make myself useful and make a start on the garden. The previous owner passed away in April after a long period suffering from Alzheimer's so as you can imagine, the once-pristine garden had deteriorated into a tangled mess of brambles and sprawling, gangly bushes. There was very little which could be salvaged so I've cleared all but a handful of plants and will start again from scratch.
At the very back of the garden are three established roses which have grown really tall but which lack any shoots or branches below head height. I'm loathe to rip them up since the plants are so established so I've measured up to replace and extend the tatty trellis behind the roses with a view to training them along to create a living wall hiding the garage behind but have the following questions:
1) From the pictures, can you identify which kind of roses I have? The two on the right are clearly different from the bushy one on the left but would all three lend themselves to being trained along a trellis?
2) What can I do to regenerate/rejuvenate the plants? The stems are very woody below the 5' mark but the flower line is far to high as it stands (above the roof of the garage!). Ideally I'd like as much of the trellis as possible to eventually be covered in flowering branches.
3) When should I look to prune the plants? I'm worried about exposing the cut stems to frost but similarly, an 8ft rose could be pretty vulnerable if we have storms this winter. Which is the lesser of the two evils?
(Note: The left-most rose was being held up by the mass of brambles beneath it and has fallen forward now the ground has been cleared but it stands just as tall as the rose next to it when supported. It's by far the most top-heavy of the three plants).
Thanks in advance for any advice you can offer. I'm looking forward to getting stuck in and developing my green fingers but until now the only experience I've had is growing fruit and veg in a patch in my parents' garden so ornamental plants are a bit of a mystery!