Hello - I have just purchased the Viburnum opulus which I believe is the Snowball Shrub. I have admired this from afar before and hope to try and train it to become more like a tree than a shrub - wonder if some kind soul can advise when do I start to trim it - I have read that they can grow upto 3m tall and wide but its the height I am after.
It is the sterile form of this which produces the big 'snowball' type flowers.
Ours is grown as a multi stemmed shrub and it does get tall. Not sure if one can make it into a tree form though. The way is to treat it like a standard Fuchsia or Rose. Buy one with a single stem to begin with, then rub out any growths when they are tiny which appear on the lower part of ther stem, only allowing the stems at the top to grow.
Hi Berghill thanks hopefully its the sterile one I have