Less often than people think. "Too big" is how a lot of quite different problems get described, and most of them have cheaper answers than making the tree smaller.
What "too big" usually turns out to mean
| The real complaint | What it actually is | The fix |
|---|---|---|
| Can't use the ground beneath | Canopy too low | Crown lift |
| Heavy shade | Canopy too dense | Crown thin |
| Over a shed or greenhouse | Specific branches | Targeted pruning |
| Deadwood dropping | Lack of maintenance | Deadwooding |
| Dominates the view | Genuinely too big | Crown reduction |
| Pressing on things in every direction | Outgrown its position | Recurring reduction, or replace |
The test that separates them
Ask yourself: if the specific things bothering you were dealt with, would the tree still be a problem?
If no, it is not too big — it just needs the right work. If yes, and the answer would still be yes after a reduction that lasts five years, then it has genuinely outgrown the position and you are looking at a recurring commitment rather than a job.
What reduction can and cannot do
A sensible reduction takes around a quarter to a third of the crown on a healthy broadleaf, less on an older tree. On a 40ft tree that is perhaps eight to twelve feet off the height, with the spread coming in proportionally.
That is a meaningful change in how the tree sits in a garden. It is not a transformation, and it will not turn a large tree into a small one. Anyone offering to take half the height off is offering to top it, which comes back bigger, denser and structurally weaker within three or four years.
The recurring-cost arithmetic
This is the calculation worth doing honestly, because it is the one that actually decides the question.
A reduction on a healthy broadleaf holds three to five years. So a genuinely oversized tree means booking work roughly every four years, indefinitely — five reductions over twenty years.
Set against that: a single removal plus a replacement tree that suits the position. The comparison is not obvious either way, and it depends entirely on what the tree is worth to you.
What the tree is worth, honestly
- Screening. Frequently more than people notice, and a boundary fence is generally limited to two metres under permitted development.
- Shade, most missed the summer after it has gone.
- The character of the garden. A mature tree takes decades to replace.
- Wildlife, which is genuine and worth weighing.
- Whether it is protected, which may settle the question.
It is worth standing in the garden and looking at what you would be able to see, and what the space would feel like, without it. People frequently discover the tree is doing more than they had noticed.
The third option
Changing what is around the tree rather than the tree itself — moving a shed, rerouting a path around the root plate, relaying paving with a gap at the trunk, or redesigning that part of the garden as shade planting.
A shed can be moved in an afternoon. A mature tree takes decades to replace. It is worth at least asking which one should give way, because the question frequently does not get asked at all.
If it is genuinely the wrong tree
Sometimes the conclusion is that a forest species has been planted in a garden — sycamore, ash, poplar, willow or a large conifer in a modest plot. That is a legitimate conclusion and there is no shame in it.
If you replace it, choose for the position at full size rather than for the look at planting size. The reason so many gardens have out-of-scale trees is that they were bought as three-foot specimens without much thought about forty-foot ones.
Check the permission position first
A tree in Tewkesbury's conservation area needs six weeks' written notice to Tewkesbury Borough Council — and that window exists precisely so the council can decide whether to protect the tree. Give notice of an intention to fell a prominent healthy tree and they may respond with a Tree Preservation Order, at which point the tree stays.
A reduction notice on a sound tree usually passes without comment. So do not commission a garden design that depends on the tree coming out until you know whether it can.
Got a tree you think is too big?
Tell us what it stops you doing. We'll give you an honest view of whether it is the size that is the problem.
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