Pinus mugo ‘Gnom’ is a dark green mound forming variety useful for the rock garden or the front of a border. Planting Conifers generally prefer a slightly acidic soil, although not essential and therefore we recommend Ericaceous compost when planting your conifers.
It is mound-forming when young, making a shrub about 60 cm tall and almost twice as wide when 10 years old. Later it slows down spreading, and adding some height but not much at all, so in maturity its height and spread are equal. I have seen accounts saying it can reach up to 3m in 25 years but this is not only highly unlikely but testament to not believing all you read online !