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The short answer
Cut most shrubs to ground level and they reshoot from the stump within a season, sometimes more vigorously than before. Removal means getting the root ball out, which on an established shrub is hours of digging rather than minutes of cutting. The rough line: a trunk thinner than your wrist comes out with a spade. Thicker than that and you want a winch or someone with one.
Cut to ground
Usually temporary
Real job
The root ball
DIY line
Trunk thinner than a wrist
Watch for
Roots near walls and drains
How established is it?
Trunk thickness is a reasonable proxy for how much root is underneath.
Straightforward
Thinner than a wrist
Dig a trench around the drip line, sever the laterals with a spade or loppers, lever it out. An afternoon and some effort.
Hard work
Wrist to arm thickness
Trench wider, cut through substantial laterals with a pruning saw, and expect to need leverage. Two people and a length of scaffold board rather than brute force.
Machine or winch
Thicker than an arm
At this point it’s a stump with foliage. A winch, a mini-digger, or a grinder after cutting it down — not a spade.
Careful
Anything against a wall or drain
Roots that ran under a footing or along a drain can’t be pulled without risking what they’re under. Cut and grind rather than heave.
What grows back, and what doesn’t
Most broadleaf shrubs — laurel, privet, lilac, forsythia, dogwood — reshoot enthusiastically from a cut stump. Cutting to ground level is pruning, not removal, and often produces a denser, more vigorous plant than before.
Most conifers don’t. Cut a leylandii or thuja to the ground and it usually dies. That’s convenient if removal is the goal, and it’s the reverse of the hedge-renovation problem.
Where you can’t dig — against a wall, over a drain — the practical route on a regrowing species is to cut it low and grind the stump, which achieves removal without excavating next to something you’d rather not undermine.
Getting the root ball out
For anything up to about wrist thickness. Beyond that, get leverage or get help.
Cut the top off first
Down to a metre or so of stem. That’s your lever later, and it stops branches fighting you while you dig.
Water it a day before
Wet soil releases roots far more easily than dry, and it’s the difference between an afternoon and a weekend.
Trench around the drip line
Not tight to the stem. The lateral roots you need to cut are further out than the plant looks.
Sever the laterals
Spade for small, loppers or a pruning saw for anything substantial. Work round the whole circle before trying to lift.
Lever, don’t heave
Rock the stem to find which roots still hold, cut those, repeat. A board and a fulcrum beats pulling.
Backfill and firm
With soil rather than the loose spoil. It will settle regardless, so leave it slightly proud.
Cut, grind or dig
Where this stops being a DIY job
Anything against a foundation, wall or drain run. Pulling a root ball that ran under a footing can take the footing with it. Cut and grind instead of levering.
Anything needing a machine or winch. Winching under tension is genuinely dangerous — cables and straps fail and they fail fast.
Buried services. Shrubs get planted near boundaries and drives, which is exactly where shallow services run. Have them located before digging.
Advertising disclosure: calls are routed to an independent local provider. We’re paid a referral fee for the call. You pay the provider, never us.
What a good removal accounts for
Asks
What’s going there next
Replanting needs clear ground; turfing doesn’t. It changes the method.
Checks
What the roots are near
Walls, drains, services. Pulling near any of them is the wrong approach.
Includes
The hole and the spoil
You’re left with a crater and a heap otherwise. Confirm who fills it.
Common questions
Will a shrub grow back if I cut it down?
Most broadleaf shrubs will, often more vigorously. Most conifers won’t — cutting a leylandii or thuja to the ground usually kills it.
How do I remove a shrub root ball?
Cut the top down to a stem you can use as a lever, water the ground the day before, trench around the drip line, sever the laterals, then rock and lever rather than pulling.
Can I plant a new shrub in the same place?
Not into remaining root mass. Either get the old root ball fully out or plant a sensible distance away.
What if the shrub is against a wall?
Cut it low and grind the stump rather than digging or pulling. Levering out roots that ran under a footing risks the footing.
Too big to lever, or growing against the house?
Anything up to about wrist thickness comes out with a spade, a saw and an afternoon — and watering the day before does more than brute force. Machines, winches and roots running under a wall are where this stops.
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