To remove a bush or shrub stump, cut the stems low, then dig out or grind away the crown, the knot of wood where the stems meet the roots. Leave that crown in the ground and many broadleaf shrubs, such as azaleas, privet and nandina, grow back, while boxwood, juniper and arborvitae usually do not recover from a hard cut.
A shrub stump is not a small tree stump
A tree has one trunk and one stump. A shrub has a crown: a thick, knotted base where many stems join and the roots fan out underneath. Cut the stems off at ground level and the crown is still there, often wider than any single stem suggested, with buds packed into it. That is why a bed of cut-down shrubs can look clear in March and green again by June. Removing a shrub stump really means removing the crown. Everything else in this guide is a way of doing that without tearing up the plants, edging and lines you want to keep around it.
Which shrubs come back from the crown
Clemson Extension's pruning guidance is the clearest test. It says broadleaf shrubs such as azaleas, camellias, privets, glossy abelia, nandina and cleyera respond well to renewal pruning, which means cutting them to within six to twelve inches of the ground. That is a gardener's way of saying their crowns resprout. The same guidance says boxwoods, junipers, cypress, arborvitae, yews and other narrow-leaf evergreens do not respond to severe pruning and may decline. So a cut boxwood or juniper stump is usually just dead wood to remove, while a cut azalea or privet stump is a live plant waiting for spring.
Privet and nandina need the crown out
Two shrubs planted widely in Carolina yards are also on North Carolina's invasive list. NC State Extension describes Chinese privet as invasive in the state, spreading by seed and by suckers that form thickets, and very difficult to get rid of once established. It lists nandina, or heavenly bamboo, as invasive under the NC Invasive Plant Council and toxic if pets or children eat it. Cutting either to the ground just restarts it. Clemson Extension forestry staff describe cutting privet and then treating the regrowth, with root sprouts to follow up on, which tells you how stubborn it is.
Digging a crown out by hand
Cut the stems back but leave a few of the thickest standing a foot or two tall as handles. Slice a circle around the crown with a sharp spade, about as wide as the old branches spread, cutting the roots as you go. Dig under one side, rock the crown by its handles, and cut whatever holds. Loppers handle the small roots and a pruning saw the thick ones. A young azalea or a small boxwood can come out in an hour or so. Old, overgrown hollies and boxwoods with trunks like small trees take more. Before you start, find the drip irrigation tubing, the sprinkler heads and the cable to any path lights.
A whole row along the house
Foundation plantings bring their own hazards. Within a few feet of the wall you can meet downspout drains, the line to an outside spigot, air conditioner refrigerant lines, dryer vents, low-voltage lighting, and the edge of a footing. Public lines are marked through 811 with a few working days' notice. Private ones are not, so trace them. Work one crown at a time and keep the soil off the siding. If a long hedge is coming out, take the stems down first, then deal with the row of crowns in one go. Grinding often makes sense here, since a narrow grinder can work along the bed without heaving the soil against the house.
Grinding shrub stumps
A shrub crown can be ground like any other stump. The cutting wheel works the crown down below the soil, taking the bud-packed knot with it, and the roots left behind rot in place. That ends the resprouting from the crown, though an aggressive suckering shrub like privet may still push a few shoots from roots farther out, which you cut as they appear. A row of crowns grinds quickly once the machine is in the bed, and grinding near walls and walks is a matter of placement. See stump grinding, and stump grinding near a foundation for the close ones.
Getting the bed ready for new plants
Whether you dug or ground, the bed now holds leftover roots and maybe a pile of grindings. Rake out the chips, or most of them, because fresh wood worked into soil ties up nitrogen that new plants need. Fill the hollows with a good soil or compost blend and let it settle before you plant. Pick the new plant with the old problem in mind. If privet or nandina came out, NC State Extension's plant pages for both suggest native alternatives, and the Extension office in your county can help you choose. Planting after stump grinding covers timing and soil.
Common Questions
Will a bush grow back if you cut it to the ground?
Many will. Clemson Extension says azaleas, camellias, privets, glossy abelia, nandina and cleyera respond well to being cut back to six to twelve inches, so their crowns resprout. Boxwoods, junipers, arborvitae, yews and other narrow-leaf evergreens do not respond to severe cutting and usually decline instead. To stop a resprouting shrub, the crown has to be dug out or ground.
How do you get rid of privet stumps for good?
Remove the crown, by digging or grinding, and then keep cutting any root sprouts that follow. NC State Extension calls Chinese privet invasive and very hard to eradicate once established, and it spreads by suckers. Some owners treat regrowth with a labeled herbicide; your county Extension office can advise on product and timing if you go that way.
Can shrub stumps be ground right next to the house?
Usually, yes. A narrow grinder can work along a foundation bed, and the depth and position of each cut are planned around walls, walks and the house's lines. Point out downspout drains, spigot lines, lighting cable and irrigation before the work. Shrubs not cut yet? A photo of the bed as it stands is a fine place to start the conversation.
What to Do Next
Send a photo of the bed and the crowns, plus your town, for a grinding quote on the row. Call (828) 574-4474.