How large can a common rowan grow before it stops being ‘small’?
Your rowan is still young in the photograph, but freely growing rowans locally do not usually remain shrub-sized. The growing conditions determine whether it stays a smaller tree or becomes considerably taller.
This is a common rowan. Left unrestricted, it normally becomes a small to medium-sized tree. Around Hartungviken, Sweden, that usually means roughly six to twelve metres tall at maturity.
It is sometimes described as ‘small’ because it often grows with an open, multi-stemmed or crooked form, particularly on drier, poorer ground. That can make it look more modest even when several metres tall. On better soil with more moisture and less competition, the same species can eventually reach around fifteen metres.
The rowan in your photograph is in a fairly poor, woodland-edge setting, so the usual range is more realistic than the maximum. Expect mainly a tree of around six to ten metres if left to grow freely for a long time, and considerably taller only in particularly favourable conditions.
Sources and images 1
- Original reader contribution ↗Reader question
