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How to fill out a leggy Rowan/Mountain Ash tree
Good morning everybody. I’m a relatively new gardener so I hope someone may be able to help fill in the gaps of my (limited!) knowledge when it comes to a Rowan Tree we have in our garden.
We inherited the tree when we bought the house last year. Although it seems healthy, it’s rather spindly and thin with minimal coverage (which we’d like more of due to overlooking houses). We’d love to try and fill it out a bit, encouraging more growth along the branches. I can’t be sure when it was planted but due to the previous owners’ timelines I’d guess around 2013-2014.
Below is a picture of the tree (on the right) taken last April/May. Other than growing its lovely flowers and berries, there was no more foliage than this. I’m wondering if taking out a couple of the lowest branches and some off the top might help? Any advice gratefully received. Many thanks.

We inherited the tree when we bought the house last year. Although it seems healthy, it’s rather spindly and thin with minimal coverage (which we’d like more of due to overlooking houses). We’d love to try and fill it out a bit, encouraging more growth along the branches. I can’t be sure when it was planted but due to the previous owners’ timelines I’d guess around 2013-2014.
Below is a picture of the tree (on the right) taken last April/May. Other than growing its lovely flowers and berries, there was no more foliage than this. I’m wondering if taking out a couple of the lowest branches and some off the top might help? Any advice gratefully received. Many thanks.

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East facing, top of a hill clay-loam, cultivated for centuries (7 years by me). Birmingham
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.
If you prune it back fairly hard, that's more effective than just taking a few ends off. That wouldn't really benefit it at all.
I live in west central Scotland - not where that photo is...