Posted: 23/03/2013 at 14:47
I can't think pf any weeping evregreen that will stay small so checked on teh RHS plant selector and got 0 results. You may have to settle for something that has winter or early spring blossom or catkins but I would go for an acer Sango Kaku which doesn't weep but grows slowly, has bright coral coloured stems all year and very good foliage colour from the new shoots in spring to the autumn leaf colour.
You could also consider a smaller, hummocky formed acer but it too will be deciduous.
I have grown a Kilmarnock willow. It did well for 2 years, grew far too thickly and vigorously for the next 3 and needed constant hair cuts and then it died. A friend grew one and hers died suddenly as well.
The only weeping evregreen I can find is Cupressus cashmeriana which will get to 8 metres.