Why Does a Tree Keep Growing Back After Being Cut Down?

You've had a tree cut down, the garden is finally clear, and you think that's the end of it. Then a few weeks or months later, little green shoots start appearing around the stump.

Sound familiar?

It's frustrating, especially when you've removed the tree to make room for a lawn, garden, driveway or landscaping project.

But why do some trees keep growing back after being cut down, and what can you do to stop it?

Why Do Trees Grow Back After Being Cut Down?

Cutting down a tree removes its trunk and branches, but it doesn't necessarily kill the root system. Some tree species can produce new growth from dormant buds in the stump, root collar or roots. This process is known as resprouting. The roots may still contain stored energy, allowing the tree to produce fresh shoots even though the original trunk is gone.

Not all trees behave this way. Some species die after being cut down, while others are remarkably persistent.

What Are Those Shoots Growing Around the Stump?

New growth around an old tree stump is often called stump sprouts or suckers.

Stump sprouts grow directly from the remaining stump or its base, while root suckers emerge from the root system, sometimes several metres away. You might notice clusters of small shoots appearing in the lawn, garden beds or around the original tree.

These shoots aren't necessarily new trees growing from seeds. They may still be connected to the original root system.

Will Cutting the New Shoots Stop the Tree Growing Back?

Removing new shoots can help keep the area tidy, but it may not permanently stop regrowth. If the root system remains alive, some trees will continue producing shoots.

Repeatedly removing them can eventually exhaust the stored energy in the roots, but this may take considerable time and isn't guaranteed to work quickly.

For homeowners who want to landscape or use the area, constantly cutting back new growth can become another maintenance job.

Does Stump Grinding Stop a Tree From Growing Back?

Stump grinding can help prevent regrowth from the stump itself, particularly when the stump and root collar are ground below ground level. However, it's important to understand that stump grinding doesn't normally remove the entire root system.

Some species can continue producing root suckers from living roots beyond the ground stump.

The effectiveness of stump grinding depends on the tree species, the depth and extent of grinding, and where the new shoots are emerging. A professional can assess whether grinding the stump is likely to solve the problem or whether additional treatment may be needed.

What Happens to the Roots After a Tree Is Removed?

When a tree dies, its remaining roots generally begin to break down naturally over time.

How long this takes depends on the species, root size, soil conditions and whether the root system remains alive. Large roots can take years to decompose.

If you're planning new landscaping, fencing or construction, it's worth considering whether remaining stumps and major roots will interfere with the work.

Stump grinding can remove the main stump obstruction, but it shouldn't be confused with complete root removal.

Can You Stop a Tree Stump From Resprouting Permanently?

The best approach depends on the type of tree and how it's growing back.

Options may include removing new shoots, grinding the stump or using an appropriate targeted treatment where necessary. For trees that produce extensive root suckers, simply grinding the visible stump may not be enough.

It's also important to avoid digging out or cutting large roots without understanding what else they may be affecting, particularly near underground services, retaining walls or neighbouring trees.

If you're unsure what species you're dealing with, professional arborist advice can help you avoid spending time and money on a solution that won't work.

Tree Removal and Stump Grinding

If you've had a tree removed but it's still sending up new shoots, you don't necessarily have to keep fighting the regrowth yourself.

Craig's Trees provides professional tree removal and stump grinding services across Christchurch and North Canterbury. Whether you're clearing an old tree stump, preparing for landscaping or dealing with unwanted growth around a previously removed tree, we can help assess the practical options.

Got a stubborn tree stump that won't stop growing? Contact Craig's Trees to discuss stump grinding and removal.