Plants/trees/hedge to obcure neighbours view?

[Broch5]

Im moving to a new property in a few weeks-my neighbours garden backs directly on to our garden. Their plot is slightly higher than ours-which means they look down into our garden.
I would like to plant something along the back garden wall that would obscure there view of us, but obviously we dont want to upset or annoy them. Is there something we could plant that would be low maintenance, and do the job? My husband suffers quite badly with Hayfever-so nothing that flowers.
Someone suggested euclyptus trees-but im not so sure.
Thank you in advance for your help and advice.
ps-its a south facing garden on the South Wales coast, UK.

[coccinelle]

Red Robin bushes spring to mind as they're evergreen but have the lovely red shoots in Spring. Try different bushes so it doesn't create a wall OR add a low wide tree and bushes scattered about so it hides without making a hedge. I don't know how big your garden is to know what depth you can use.

[PurpleParis]

Red Robin (Photinia) would be lovely as he leaves are shiny and green turning a lovely red and as Coccinelle says they are evergreen. Also evergreen...thought about bamboo? This can give lovely screening but is very wispy and light, you can get some bamboo that has black stems, very nice contrast with the green.

[coccinelle]

I'm not sure about bamboo, purple. Our neighbour made a hedge of it and it's now giving shoots off in our garden and it's hard to get rid of unless there are different kinds.

[Whoever]

I'd avoid bamboo. The roots are very invasive and after a couple of years will could cause real problems. Eucalyputus trees grow very fast and tall - probably not a good idea either. Red Robin does sound a possible suggestion. The other alternative would be to try and add some strong tellising to the top your your wall and grow some decorative ivies up it. You can get some lovely variagated green and yellow varieties which are evergreen and would give you some interest in the garden even in winter.

[hizakite]

two dozen leylandii should sort things nicely ;)