Fast Growing Trees vs Slow Growing Trees
Introduction
Fast-growing trees can provide quicker privacy, screening and impact, but they often come with increased maintenance and larger mature sizes. Slow-growing trees usually require less pruning, are easier to manage and can be a better fit for smaller gardens.
As a simple guide:
- Fast-growing trees create quicker results
- Slow-growing trees often need less maintenance
- Faster growth usually means larger mature size
- Think about privacy when you're choosing
- The best tree depends on your garden and long-term plans
Choosing a tree is not just about how quickly it grows. It is also about choosing something that will suit your space for years to come.
Which Is Better?
One of the most common requests we hear is:
“I’m looking for a fast-growing tree.”
It makes sense. Whether you want privacy, shade or a more established-looking garden, quicker growth sounds appealing.
But fast growth is not always automatically better.
Growth speed affects everything from maintenance and pruning to mature size and long-term suitability. A tree that grows quickly today can become much larger and more demanding in the future.
This guide explains the differences between fast and slow-growing trees, what to expect, and how to choose the right option for your garden.
What Counts as a Fast Growing Tree?
Growth rates vary depending on the species, soil conditions and weather, but as a general guide:
Fast-growing trees
Often grow around 60 cm or more per year
Slow-growing trees
Often grow around 15 to 30 cm per year
These figures can vary a lot. Growth depends on:
- Soil quality
- Water availability
- Sunlight
- Exposure
- Root establishment
A newly planted tree may also spend its first season focusing more on roots than visible top growth.
Because of this, growth rates should always be viewed as guides rather than guarantees.
Benefits of Fast Growing Trees
Fast-growing trees have some obvious advantages.
Quicker privacy
If neighbouring buildings or overlooking properties are a concern, faster-growing trees can help create screening sooner. In lots of new-build homes, this can be a game changer.
Faster impact
Young gardens can sometimes feel sparse. Fast-growing trees fill space more quickly and create structure faster.
Shade and shelter
Trees that establish quickly can also provide earlier shade and wind protection.
Popular fast-growing choices often include:
These can create noticeable growth surprisingly quickly in suitable conditions.
The Downsides of Fast Growing Trees
Fast growth often comes with trade-offs.
More pruning
Faster-growing trees often require more regular maintenance to keep them manageable.
This may include:
- Height control
- Thinning
- Shaping
- General upkeep
Larger mature size
A tree growing rapidly today can become very large over time.
Many planting issues happen because people choose a fast-growing tree without considering its eventual height or spread.
Potentially weaker wood
Some fast-growing species produce softer wood which can be more susceptible to storm damage or branch breakage.
Not all fast growers have weak structures, but it can be a factor worth considering.
Advantages of Slow Growing Trees
Slow-growing trees offer a different set of benefits.
Better for smaller gardens
Compact gardens often benefit from slower-growing trees that stay manageable for longer.
Lower maintenance
Slower growth usually means:
- Less pruning
- Less shaping
- More predictable size
More refined structure
Many slower-growing ornamental trees develop attractive natural forms and seasonal interest.
Examples include:
These trees often become focal points without overwhelming the space.
It's worth thinking about what the goal is in your garden and what the best use of space is.
Privacy
Privacy is one of the biggest reasons people ask for fast-growing trees.
But it is important to think beyond the first few years.
Quick screening can sometimes create long-term maintenance challenges if trees eventually outgrow the space.
Questions worth considering:
- How much height do you actually need?
- How wide will the tree become?
- How close is it to boundaries?
- Will it block light later on?
Sometimes a slightly slower-growing species provides a better long-term result.
Think About Mature Size
Growth rate often gets the attention, but mature size is usually more important.
Always check:
- Mature height
- Mature spread
- Root space requirements
- Distance from buildings and boundaries
A tree that suits your garden at planting time should still suit it ten or twenty years later.
Planning for mature size helps avoid future pruning issues and disappointment.
So Which Is Better?
This all depends on your garden space and what you'd like the end result to be.
Fast-growing trees are ideal if you want:
- Quicker privacy
- Faster impact
- Rapid shade or screening
Slow-growing trees are often better if you want:
- Lower maintenance
- Smaller garden suitability
- More controlled growth
The best tree is not necessarily the fastest-growing one.
The right choice is the one that fits your space, expectations and long-term plans.
Our Final Thoughts
Fast-growing trees can be brilliant in the right situation, but they are not always the best option.
Growth speed should be considered alongside mature size, maintenance and the role you want the tree to play in your garden.
Frequently Asked Questions
What is the fastest growing tree in the UK?
Species such as Leylandii, Eucalyptus and Poplar are often considered among the fastest-growing options.
Do fast-growing trees have weaker roots?
Not necessarily. However, some fast-growing species develop softer wood or require more maintenance as they mature.
Are slow-growing trees easier to maintain?
Generally yes. Slower-growing trees often need less pruning and are easier to manage in smaller gardens.
Which trees provide privacy quickly?
Fast-growing screening trees such as Leylandii, Silver Birch and some evergreen species can create privacy relatively quickly.
Can I control a fast-growing tree with pruning?
Often yes, but regular pruning may be needed to keep growth under control and maintain the desired shape.
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