Why Timing Matters in North Texas
DFW has a climate unlike most of the country — brutal summers, mild winters punctuated by ice storms, and a spring storm season that can snap branches overnight. The right tree care at the wrong time of year can do more harm than good. This guide is built specifically for North Texas conditions.
March – May
Inspect, fertilize, and prepare for storm season
Post-winter inspection
Walk your property and look for winter damage — cracked limbs, frost cracks in bark, and any branches that shifted under ice load. Catch problems before spring growth hides them.
Remove storm-damaged wood
Clean up any broken or hanging branches left from winter. Dead wood in the canopy is a hazard as spring winds pick up.
Fertilize established trees
Early spring is the best time to fertilize. Trees are coming out of dormancy and ready to use nutrients. Use a slow-release fertilizer applied to the drip line area.
Do NOT prune oaks (Feb–June)
Oak wilt beetles are active from February through June. Any fresh cut on an oak during this window is an open invitation for infection. If you must prune, seal cuts immediately.
Refresh mulch
Top up mulch to 3–4 inches around the drip line (keep it away from the trunk). This retains moisture heading into summer and moderates soil temperature.
Pre-storm trimming
Get canopy thinning done before storm season peaks in April–May. A thinned canopy lets wind pass through instead of acting like a sail.
June – August
Water deeply, watch for stress, and stay off oaks
Deep water every 2–3 weeks
Lawn sprinklers don't reach tree roots. Use a soaker hose or slow trickle at the drip line for 45–90 minutes. Young trees (under 5 years) need water weekly.
Watch for drought stress
Wilting, leaf scorch, early leaf drop, and smaller-than-normal leaves are all signs of heat stress. Catch it early — deep water immediately and call an arborist if decline continues.
Continue oak wilt precautions
Beetles remain active through June. Avoid any pruning of oaks until July at the earliest, and seal any wounds from storm damage immediately.
Monitor for insect activity
Summer heat stresses trees and makes them vulnerable to borers, aphids, and scale insects. Look for unusual leaf discoloration, sticky residue, or sawdust-like frass at the base.
Deadhead crape myrtles (optional)
Removing spent flower clusters after the first bloom can encourage a second flush. This is light work — snip the seed heads, not major branches.
Hold off on fertilizing
Do not fertilize trees during peak summer heat. Fertilizer pushes new growth that can't harden off fast enough in extreme temperatures.
September – November
Prime pruning season — get your trees ready for winter
Major pruning window opens
October through January is the best time to prune most trees in the DFW area. Trees are slowing down, pests are less active, and the canopy is visible once leaves drop.
Safe oak pruning window
October through January is the safest time to prune oaks. Beetle activity is minimal and wounds heal before spring activity resumes.
Pre-winter structural inspection
Look for co-dominant stems, cracks in major limbs, and any branches hanging over your roof or driveway. Address these before ice season arrives.
Continue watering through October
Keep watering until the first hard freeze — trees going into winter drought-stressed are more vulnerable to ice damage.
Do NOT prune crape myrtles
Avoid pruning crape myrtles in fall. Late-season cuts stimulate new growth that gets damaged by the first freeze. Wait until late February.
Consider cabling for high-risk trees
If you have a large tree with a structural weakness — a wide-spreading limb or co-dominant stem — fall is a good time to have cabling installed before ice season.
December – February
Prune while dormant, protect from ice, and plan ahead
Dormant pruning
January and early February are ideal for pruning most trees. The structure is fully visible, wounds callus quickly when growth resumes, and pest pressure is minimal.
Do NOT prune oaks after February 1
The oak wilt risk window opens February 1. Get oak pruning done in January if possible. After February 1, seal any cuts immediately.
Ice storm prep
Before a forecast freeze, make sure dead wood and weak branches are already removed. During active ice accumulation, stay inside — do not shake branches.
Post-ice inspection
After an ice event, walk your property and look for hanging branches, split limbs, and root lifting. Address widow makers immediately — they can fall without warning.
Water during dry spells
DFW winters can be surprisingly dry. If there has been no significant rain for 3–4 weeks and temperatures are above freezing, give your trees a deep watering.
Plan spring work now
Book your spring trimming and fertilization early — tree services fill up fast as weather warms. Getting on the schedule in January means your trees are ready before storm season.
Quick Reference: DFW Tree Care Calendar
Need Help With Your Trees This Season?
Tree Crew serves the entire DFW Metroplex. Call for a free assessment — we'll tell you exactly what your trees need and when.