When should crape myrtles be pruned in Arkansas?
Late winter, before the buds break, is the safe window; February into early March in Hot Springs, as a rule. Crape myrtles bloom on the current season’s growth, so pruning while the tree is still dormant costs no flowers. Cutting in fall invites winter damage on the fresh wounds, and cutting in summer takes the blooms with it.
There is no rule that says they must be pruned every year. A crape myrtle that has a good shape and is not in anyone’s way can go several winters with nothing but the suckers taken off at the base.
What is “crape murder” and why does it hurt the tree?
Crape murder is the habit of cutting every trunk and main branch back to the same height each winter, leaving a row of stubs that swell into knuckles. It is common, it is fast, and it is the wrong cut. The tree responds by pushing a fistful of thin, whippy shoots out of each knuckle. Those shoots are weakly attached, they bend under the weight of their own blooms, and they carry fewer flowers than a properly thinned branch would.
Over a few years the tree loses the thing it is grown for: the smooth, mottled, muscular trunks that a mature crape myrtle shows off after the bark peels. A knuckled tree never gets there. If a crape myrtle has already been topped for years, it can be brought back by selecting one or two of the strongest shoots on each knuckle and removing the rest, then leaving it alone.
How do you prune a crape myrtle correctly?
Take out what is wrong and leave what is right. Correct pruning removes suckers at the base, branches that cross and rub, twiggy growth inside the crown, and the low limbs that block a walk or a drive. It thins the tree to a few clean main trunks, usually three to five, and stops there. Nothing gets cut back to a stub, and no trunk is shortened only to make the tree smaller.
Work in this order:
- Suckers and sprouts coming from the base or the roots, cut flush.
- Any branch rubbing against another, keeping the better-placed one.
- Dead wood, which shows as gray and brittle against the live bark.
- Small twiggy growth low inside the crown, to open it up.
- Seed heads on smaller varieties, if you want a tidier look. On a tall old tree, skip this; it does nothing for the bloom and it means a ladder.
If you cannot reach a branch from the ground with pole pruners, that is the signal to stop. What is left is not a homeowner job.
When is a crape myrtle a tree-service job?
When it is tall enough to be a tree. An old crape myrtle in a Hot Springs yard can reach twenty-five feet with a spread to match, and one that has grown over a roofline, into a service drop, or across a driveway needs a climber or a bucket, not a step ladder. Removing a dead trunk from a multi-trunk tree, or cutting a whole tree down that has outgrown its spot, is priced the same way as any small tree on the removal cost page.
The other case is a tree that has been topped for a decade and needs rebuilding. Selecting the right shoots on a big knuckled tree is climbing work, and doing it wrong makes the tree worse. Both jobs are part of tree trimming and pruning here, and the estimate spells out what is coming off.
Which other Hot Springs yard trees get over-pruned?
Most of them. The crape myrtle is the famous victim, but the same February impulse does damage up and down the street.
Dogwood wants almost nothing. Remove dead wood and crossing branches and stop. A dogwood cut hard sulks for years and loses its layered shape. Redbud takes a light hand too: shape it a little after bloom, never cut it back hard, and expect some dieback in the crown as it ages, which is normal for the tree.
The big oaks over the older houses are a different category. They are a climber’s job, they are pruned for weight and clearance rather than size, and they are never topped. A topped oak grows the same weak sprouts a topped crape myrtle does, at fifty feet, over a roof. The pines get the same rule. If a tree over the house needs to be smaller, the honest answer is thinning, weight reduction, or removal, and the trimming page covers which is which.
What to say on the phone
Say how tall it is and where it stands. “Crape myrtle at the corner of the house, about as tall as the gutter, been cut to stubs for years.” “Big one over the carport, limbs on the roof.” The first is a light rebuilding job. The second is a climb. Either way the answer comes back written, with the cuts named.