missdeke
Neighbour's gardens can be a problem. My neighbour has huge trees that block all the sun from my garden, I've just spent lots of cash just to have the overhanging branches cut back. Plus there is an overgrowth of ivy, brambles, ground elder where mice and shrews live, that have destroyed my fence that I have had to replace. Unfortunately I also have a cat who hunts the mice.
*Maizie - yes that info is definitely required in order to give advice.
*Missdeke - the house I moved into had that, right against the neighbours fence just out of my back door and all along the side by the neighbours - it looked horrible! One of the first things we did after we moved here was to attack them all with a chainsaw! That did leave a horrid mess which I have had to look for over a year, until June when I won rather a lot of money at Royal Ascot! I have had it cleared and a raised patio built instead, but one of the things that was very good was that my neighbour's head appeared over the fence (had only said hello at that point) thanking me so, so much as she hadn't been able to see in her kitchen for over a decade without having to put the light on!! I have now managed to clear and replant all the way up the side of the house except one bit - some deciduous Viburnum, which will not DIE and is running everywhere! The trunks of it and there are many, are up to 6" thick, as have most of the plants, and I am desperately trying to did it out and cut them off, but as I have no tools, I am trying to dig them out with arthritic hands! This is the last though, but I need someone again with a chainsaw. They panted everything very weirdly, sort of plonked the plant on top of the soil and built up soil around the roots, so the soil around this thing is about 6" above the actual wall of the raised bed as well! The top end of the garden is trees with large bushes down the sides - some are evergreen and ok, but again, they planted a lot more of this deciduous Viburnum, and I have no idea how I am going to get shot of it - one side I have planted an evergreen rambling rose so at least it won't all look dead in the winter next winter if it takes off in the spring, but the other side - ugh! I did cut some back and found a beautiful clematis which once it had some sun romped away, but behind it there's probably 9ft of this stuff, interspersed with Camellia, Euonymous, Weigela, bramble, bindweed and ground elder - I can only manage anything at waist height, and even then not much as can't stand for long, so not really sure what I will do with that sadly!