Why Would You Want to Cut a Plant Almost to the Ground?
March 19th, 2019
Gardeners have to overcome erratic weather, sidestep a laundry list of potential bug and disease threats, and beat back attacks by deer, voles, and groundhogs to grow a decent plant.
So why would any sane gardener ever consider cutting a healthy tree or shrub to the ground?
I can think of a few good reasons for what horticulture calls “coppicing.”
The main reason is to rejuvenate a big, old bush. Getting rid of all of the old wood clears space and coerces a plant to get busy growing fresh shoots – or else.
Another is that coppicing turns what wants to be a jungle-sized plant into one whose size fits the space you have.
And a third reason is that for some plants, their one- or two-year-old wood is a brilliant red or gold, fading to gray or brown with age. By constantly whacking the older wood, you produce a steady stream of young wood, resulting in a better-looking plant.

The new shoots of red-twig dogwoods are the most colorful, fading to grown and gray once they’re 3 or 4 years old.
You can’t coppice everything, though. Trees that are generally grown as single-trunk plants, for example, don’t respond well to a near total cutback. Coppice an oak, maple, or most any evergreen, and you’ll find yourself looking at a lifeless stump.
Some species push up some weak, leggy, half-hearted new shoots after coppicing – enough to keep the plant alive but a far cry from the first-generation effort.
But some woody species – especially ones that grow as multi-stemmed flowering shrubs – will roar back better than ever.
Probably the best known coppice-worthy shrubs are the red-twig and gold-twig dogwoods. Several species of these 5- to 6-foot bushy shrubs respond nicely to being cut back to 3- or 4-inch stubs at the end of each winter.
These dogwoods produce their brightest red or gold stems on new wood. Let them unpruned, and little by little, new shoots dwindle, and the aging stems turn grayish-brown.
For size control, a good plant to coppice every year or two is the purple smoke bush, which will quickly become a purple smoke tree if you don’t cut it.
A near decapitation in March will create a 6-foot shrub with vibrant purple-burgundy leaves instead of a 20-footer with duller purple-brown summer leaves and a floppy, gangly habit. The tradeoff is that with coppicing, you won’t get any/many of the plant’s rounded, “puffy-smoke-ball” flowers.