Tree Care in Westwood, MO
Why Tree Care Matters in Westwood
Professional tree care here is about managing inherited risk. Westwood gets nearly 20 storm events a year. Our clay soils hold water, so during a heavy rain followed by wind, a large silver maple with a compromised root system is a prime candidate for uprooting. It's not just about storms. Invasive pests like the Emerald Ash Borer have decimated the ash trees that were also popular in mid-century plantings. A dead ash tree becomes brittle and hazardous quickly. Proper pruning by a certified arborist removes the weight from weak branch unions before wind can exploit them, and regular inspections can catch pest infestations or internal decay early, when options beyond removal still exist.
Your Tree's History
The 1940s to 1960s development era directly shaped Westwood's tree canopy. The preference was for fast, cheap, and showy. Siberian elms were planted for their rapid growth but are now prone to breakage and disease. The many green and white ash trees from that period are now dead or dying from Emerald Ash Borer. Builders weren't considering the 50-year maturity of these species. They planted silver maples too close to foundations and driveways, not anticipating the heaving roots. They used Bradford pears as street trees without understanding their fatal structural flaw. We're now caring for these trees at the end of their natural, often problematic, lifecycles in an urban environment.
Westwood Climate Profile
Risk Assessment
Growing & Pruning
Typical Tree Care Costs in Westwood
Tree Removal
When a tree should come down, and what removal runs here
Trimming & Pruning
Which pruning your trees need and when to do it
$266-$1,063 per tree
Stump Grinding
Grinding vs chemical removal
priced by stump diameter
Storm Damage
What to do first, and what emergency work costs
emergency removal, 50-100% over normal rates
Tree Health
Warning signs and local threats
annual care plan: pruning, health check, pest monitoring
These are estimates, not quotes: national price ranges adjusted by Westwood's regional cost multiplier (1.77x), which reflects local home values (median $1,000,000) and labor costs. Tree size, species, access and cleanup move the real price more than location does.
Common Trees in Westwood
Bur Oak
Toughest native oak - drought, cold, and wind tolerant. Massive specimens
Sugar Maple
Fall color champion, syrup production, but salt-sensitive along roads
White Birch (Paper Birch)
Iconic white bark, short-lived (40-50 years), bronze birch borer vulnerable
Eastern White Pine
Tall, fast-growing, soft needles - blister rust susceptible
Basswood (American Linden)
Excellent shade, fragrant flowers, attracts pollinators
Problem Species to Watch
Green/White Ash
Functionally extinct in urban landscapes due to Emerald Ash Borer
Silver Maple
Weak wood + ice storms = constant cleanup, surface roots destroy lawns
Siberian Elm
Weak, messy, invasive - the tree equivalent of a weed
Active Tree Threats in St. Louis County
Formosan Subterranean Termites critical
Affects: Both dead wood and living trees - will hollow out live oaks and other species from the inside
The most destructive termite species in the US. Colonies can contain millions of individuals. Unlike native termites, Formosans build above-ground carton nests IN living trees, consuming heartwood while the tree appears healthy from outside.
Laurel Wilt critical
Affects: Redbay, sassafras, swamp bay, avocado, pondspice
Fungal disease spread by the redbay ambrosia beetle (invasive from Asia). The beetle introduces the fungus when it bores into the tree to farm. Has killed over 300 million redbays and threatens the avocado industry.
Southern Pine Beetle high
Affects: Loblolly, shortleaf, Virginia, pitch, and other southern pines
Small bark beetle (size of a grain of rice) that mass-attacks stressed pines. Trees die rapidly when beetle populations overwhelm defenses. Outbreaks can kill thousands of acres of pine.
When Should You Remove a Tree in Westwood?
Not every problem tree needs to come down. But some situations in Mixed-Humid climates make removal the safest option:
- Dead or dying trees - a dead tree becomes a brittle hazard within 1-2 years, especially with 19 storm events per year in St. Louis County
- Trees with more than 50% crown dieback - recovery is unlikely and the remaining structure is compromised
- Severe lean that developed suddenly - indicates root failure, not natural growth. Urgent removal needed.
- Mushrooms or conks at the base - visible fruiting bodies mean extensive internal decay. The tree may look fine but is structurally hollow.
- ~69-year-old trees with multiple defects - at this age in Westwood, compounding issues (included bark + deadwood + root damage) make removal safer than repeated pruning
Many communities in Missouri regulate removal of large trees. Check with St. Louis County planning before taking down anything big.
Pruning Trees in Westwood
In a Mixed-Humid climate (Zone 7a), timing matters. Pruning at the wrong time can stress trees, invite disease, or kill them outright. The pruning calendar in the climate profile above shows the best and worst months here.
Pruning season: Late winter (February-March). Oaks: November-March ONLY (oak wilt restriction)
What Type of Pruning Do Your Trees Need?
- Crown cleaning - removing dead, diseased, and crossing branches. The most common and important job. Most trees benefit from this every 2-3 years.
- Crown thinning - selectively removing interior branches to reduce wind resistance and improve light penetration. Important for dense canopy species like Bur Oak.
- Crown raising - removing lower branches for clearance over sidewalks, driveways, and structures. Especially needed for ~69-year-old trees that have grown into walkways.
- Crown reduction - reducing overall canopy size. Only appropriate when trees have outgrown their space. Proper reduction cuts back to lateral branches.
What NOT to Do
Never "top" a tree (cutting all branches back to stubs). Topping destroys the tree's structure, causes rapid weak regrowth, and creates a more dangerous tree than you started with. Any company that recommends topping isn't worth hiring.
Should You Remove the Stump?
After a tree comes down, the stump isn't just ugly - it can cause problems:
- Root sprouting - many species (especially Bur Oak) send up aggressive shoots from the stump. You'll be cutting sprouts for years.
- Pest habitat - decaying stumps attract termites, carpenter ants, and beetles. In Westwood's moderate heavy termite zone, this is a real concern.
- Fungal spread - root rot fungi like Armillaria can spread from a dead stump to living trees through root contact underground.
- Tripping hazard and lawn care headache - can't mow over it, grass doesn't grow around it, and it takes 10-15 years to decompose naturally.
Grinding vs Chemical Removal
Grinding is the standard method - a machine chews the stump down 6-12 inches below grade. Takes 30-90 minutes for a typical stump. You're left with a pile of wood chips that makes decent mulch. This is what most arborists recommend.
Chemical removal (potassium nitrate) accelerates decomposition over 4-6 weeks, then you can break up the softened wood. Cheaper but slower, and doesn't address the root system.
What to Do After Storm Damage
- Stay away - keep everyone out of the fall zone. If a tree is leaning on a power line, call the utility company first, not a tree service.
- Document the damage - take photos from a safe distance before anything is touched. Your insurance company will want these.
- Don't DIY - storm-damaged trees are under tension. Cutting the wrong branch releases stored energy and can kill you. This is not a chainsaw-on-the-weekend job.
- Call a certified arborist - not just "a guy with a truck." Storm chasers flood into areas after major storms, do bad work, and disappear. ISA certification matters more after a storm than any other time.
Emergency pricing: expect to pay 50-100% more for emergency response than for scheduled work. In Westwood, that puts emergency tree removal at roughly $3,543 to $20,666. After major storms, demand spikes and prices go higher. If you can safely wait 48-72 hours, the premium usually drops.
Signs Your Tree Needs Help
In USDA Zone 7a (Mixed-Humid), these are the warning signs worth acting on, alongside the local threats listed above:
- Leaf discoloration out of season - yellowing, browning, or spotted leaves during the growing season indicate disease, nutrient deficiency, or root stress
- Premature leaf drop - healthy trees hold leaves until fall. Early drop means something is wrong underground or in the vascular system
- Thinning canopy - if you can see more sky through the crown than you used to, the tree is declining
- Bark abnormalities - oozing sap, cankers (sunken dead patches), or bark falling off in sheets
- Mushrooms at the base - fruiting bodies indicate extensive internal decay. Get a professional assessment immediately.
Storm Damage Risk in Westwood
St. Louis County averages 19.4 significant storm events per year, including 11.7 high-wind events.
Wind is the primary threat to trees in Westwood. Severe thunderstorms and high-wind events cause the most tree failures.
Freeze Protection for Westwood Trees
With January lows averaging 21.9°F in Westwood, freezing temperatures can damage non-native and marginally hardy species. Tropical and semi-tropical plantings are particularly vulnerable.
Managing Westwood's Aging Tree Canopy
~69-year-old trees need regular professional assessment. Watch for crown dieback, deadwood, and root-infrastructure conflicts.
What 1940s-1960s-Era Trees Need in 2026
1940s-1960s Homes (65-85 years old trees)
Post-war suburban boom. Cookie-cutter developments planted the same few species on every property.
Common Issues
- **Silver Maple crisis** - these fast-growing trees are now enormous with weak, brittle wood. They split in every ice storm. Surface roots have destroyed lawns, driveways, and sewer lines. The most-removed tree in America.
- **Norway Maple invasiveness** - dense shade has killed lawn and understory. Shallow roots heave sidewalks. Many states now prohibit planting. 65-year-old specimens are large and expensive to remove.
- **Overgrown evergreens** - Blue Spruce and White Pine planted as 3ft nursery trees are now 50-60ft specimens too close to houses, blocking light and dropping branches on roofs.
Recommended Actions
- Remove declining Silver Maples before they fail - budget $3,000-8,000 for large specimen removal
- Replace Norway Maples with native alternatives (Sugar Maple, Red Maple, or Zelkova)
- Assess Blue Spruce for Cytospora canker and Rhizosphaera needle cast - if lower half is bare, removal is likely best
Westwood Tree Data
Hiring a Tree Service in Westwood
With 359 landscaping companies in St. Louis County, verification is key. For tree work, specifically look for an ISA Certified Arborist. Ask for proof of insurance and their plan for protecting your property. A reputable professional will explain why a tree needs work, point out specific defects like included bark or decay cavities, and never recommend topping a tree. Get a detailed, written estimate that specifies the scope of work by tree and procedure.
Frequently Asked Questions
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Can freezing temperatures damage my trees in Westwood?
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