January, for almost everything. Trees are dormant, the structure is visible without leaves, the beetles that spread oak wilt are inactive, and tree companies are not yet busy so prices sit at the bottom of their ranges. It is rare for the best time for the tree and the cheapest time for you to be the same month.
The Austin calendar
| Months | Oaks | Everything else |
|---|---|---|
| December – January | Best of the year | Best of the year |
| February – June | Do not prune | Fine |
| July – August | Allowed, but heat-stressed | Light work only |
| September – November | Good | Good |
The rule that overrides the rest
No oak pruning in Central Texas between February 1 and June 30. Sap-feeding beetles carrying oak wilt are active then and a fresh cut is exactly what draws them. Paint every oak wound the same day, in every month, including storm breaks.
Austin sits in the worst oak wilt country in the United States, so this is not a cautious regional habit. Full detail in can trimming an oak tree kill it.
Why winter, for the tree
A dormant tree is not spending energy on growth, so the resources it needs to seal a wound are available rather than committed. Wounds made in winter close faster once spring growth starts.
It is also simply easier to do a good job. With the leaves off, the whole branch structure is visible from the ground, and you can see which limbs are crossing, which unions are weak and where the deadwood actually is. In full summer canopy a climber is working half by feel.
Why winter, for your wallet
Demand in Austin follows weather. Spring storms and the weeks after them are the peak, when every crew in the metro is committed and nobody discounts anything. January and February are the trough.
A bare canopy is also faster to work through, which shows up in the labour. Expect to be at the lower end of the ranges in what tree trimming costs in Austin.
The months to avoid
February to June, for oaks. Non-negotiable.
Deep summer, for heavy work on anything. An Austin August already has trees shedding leaves to conserve water. Taking a quarter of the canopy off then compounds a problem the tree is already managing, and freshly exposed bark on a previously shaded trunk can scorch. Light deadwood removal is fine; a major reduction is not.
Right before a spring storm season, if you have been putting off a big job. Not because of the tree, but because you will be joining a queue.
By species
Live oak and red oak. July to January only. Paint every cut.
Cedar elm. Any month, winter ideal. No closed season.
Pecan. Winter, before bud break. Pecans bleed sap heavily if cut in late winter, which looks alarming and does not actually harm them.
Ashe juniper. Any month. Autumn or winter if you are cutting it back from a house, since you avoid the worst of the pollen and the heat.
Crepe myrtle. Late winter, and lightly. Cutting them back to knuckles every February is a habit, not horticulture, and it produces the weak whippy growth people then complain about.
Fruit trees. Late winter while dormant.
When timing stops mattering
If a limb is over your roof after a storm, or a split has opened above somewhere people walk, the calendar is irrelevant. Deal with the hazard. On an oak, paint the wound the same day and move on. A tree that comes down on the house in April is a worse outcome than a wound made in April.
Planning winter work? Send photos now and book ahead, since January fills up. See tree trimming in Austin, Round Rock and Cedar Park.