We have a silver birch tree that is shedding twigs and small branches onto our drive and husband is anxious about his new car. We have engaged someone to take some off the height and tidy up its shape. We are now thinking we might as well take the whole thing out as it is quite cankerous (real word??) and not a healthy specimen so might well need to come out in a couple of years anyway. It's not really a thing of beauty. Any thoughts about how long will it be before, or indeed if at all, we can plant something else in its place.