Hill Country Lawns Done Right
When can you prune oak trees in Austin?
In Austin, do NOT prune oak trees from February 1 through June 30 – the high-risk window when sap-feeding beetles spread oak wilt, a fungal disease that can kill a live oak in months. As of June 2026 we are currently in that no-prune window, so wait until after June 30 to prune. The safe window is July through January, and the best time is the cold of late fall and winter. Whenever you do cut an oak – any time of year, including storm damage – paint the wound immediately with pruning paint to keep beetles out. Austin’s live oaks are semi-evergreen and drop last year’s leaves in spring, so heavy oak-leaf cleanup here is a spring job, not just fall.
Source: Texas A&M Forest Service / AgriLife. Updated 2026-06-16.
| Oak care fact | Detail (Austin / Central Texas, 2026) |
|---|---|
| No-prune window | February 1 – June 30 (oak wilt high risk) |
| Current status (June 2026) | Inside the no-prune window – do not prune oaks now; wait until after June 30 |
| Safe window | July – January (best in the cold of late fall/winter) |
| Paint wounds | Always – immediately, any time of year, including storm damage |
| Live oak leaf drop | Spring (Feb-March) – semi-evergreen, sheds old leaves as new growth pushes |
| Oak wilt warning signs | Veinal leaf browning, rapid canopy thinning/death, fungal mats |
| Shade implication | Dense live-oak shade favors St. Augustine over Bermuda (see grass guide) |
Can you prune oak trees in Austin right now (June 2026)?
No. Right now, in June 2026, Austin is inside the February 1-June 30 oak wilt high-risk window, so you should not prune oaks until after June 30. The sap-feeding beetles that spread oak wilt are active now and are drawn to fresh cuts. If a limb is hazardous or storm-damaged and must come off, have it removed and paint the wound immediately. Otherwise wait until July – or better, the cold of late fall and winter – to prune.
What is oak wilt and how do you spot it in Austin?
Oak wilt is a deadly fungal disease spread tree-to-tree through interconnected roots and by sap-feeding beetles that carry spores to fresh wounds. In Austin’s live oaks, watch for veinal browning or yellowing of leaves, a rapid thinning or browning of the canopy from the top or one side, and sudden leaf drop in summer. Red oaks can form fungal mats under the bark. Oak wilt can kill a live oak in a few months, so suspected cases warrant a certified arborist fast.
Why do you have to paint oak tree wounds in Austin?
Because fresh oak wounds attract the sap-feeding beetles that carry oak wilt spores, painting every cut immediately – within minutes – with pruning paint or latex paint seals it and blocks infection. This is the one case where wound paint is recommended, and it applies year-round to any oak cut, including storm breaks and accidental damage, not just intentional pruning. It’s cheap insurance against a disease that kills the tree.
Why are my live oak’s leaves falling in spring in Austin?
Austin’s live oaks are semi-evergreen: they hold last year’s leaves through winter and then drop them in spring (roughly February to March) as the new flush of growth pushes the old leaves off. It looks alarming but it’s normal and healthy, not a disease. It does mean Austin’s big oak-leaf cleanup is a spring chore rather than a fall one – the opposite of deciduous-tree regions.
Does oak shade change what grass to plant in Austin?
Yes. The dense, year-round shade under Austin’s live oaks favors St. Augustine, the most shade-tolerant warm-season grass, over sun-loving Bermuda, which thins out and fails in shade. Under heavy oak canopy even St. Augustine can struggle, so many homeowners use shade-tolerant groundcovers, mulch, or hardscape there instead of fighting to grow turf. Match the grass to the light – see our Austin grass types guide.