Camphor Tree
The camphor tree is a large, dense evergreen found throughout older Peninsula neighborhoods — particularly in Burlingame, San Mateo, and Redwood City. While beautiful when young, these trees become massive and develop aggressive root systems that crack foundations, lift sidewalks, and clog sewer lines. Many homeowners inherit camphor trees that have outgrown their site.
How to Identify Camphor Tree
- Leaves are glossy, waxy, oval (2–4 inches) with three distinct veins running from the base
- Crushed leaves and twigs release a strong camphor scent — the most reliable ID method
- Bark is deeply furrowed and rough on mature trees, gray-brown
- Small clusters of tiny yellowish flowers in spring, followed by black berry-like fruits
- Massive spreading canopy creates very dense shade underneath
- Trunk becomes thick and buttressed with age, often 3–5 feet in diameter on old specimens
Where It Grows in the Bay Area
Common in older neighborhoods on the Peninsula, especially Burlingame, San Mateo, Redwood City, and San Carlos. Also found in Palo Alto older residential areas and scattered through Oakland flatlands. Particularly common in neighborhoods developed in the 1940s–1960s when camphor was a popular landscaping choice.
Common Issues & Diseases
Camphor tree roots are among the most destructive of any Bay Area species. They crack foundations, lift sidewalks, invade sewer lines, and surface aggressively. Root damage often extends 40–60 feet from the trunk. This is the primary reason camphor trees are removed.
Birds spread the berry-like fruits widely. Seedlings appear in gardens, gutters, and natural areas throughout the year. Listed as invasive by Cal-IPC in some parts of California. Self-seeds prolifically in frost-free coastal areas.
Most camphor trees outgrow residential lots within 20–30 years. A mature camphor can have a 60-foot canopy spread and 5-foot diameter trunk — far too large for typical setbacks. Heavy shade kills lawns and understory plants.
Mature camphor trees are prone to sudden branch drop in hot weather, particularly limbs growing over structures. The dense wood is heavy, and large limbs can cause significant property damage when they fail.
Bay Area Care Calendar
Season-by-season care guidance for camphor tree in the San Francisco Bay Area:
Best pruning season. Assess root damage to infrastructure — cracks tend to expand during wet season when soil is saturated. Schedule arborist consultation if removal is being considered.
Heavy berry production and seedling emergence. Pull seedlings early before tap roots establish. Flowering attracts bees — plan any major work before or after bloom period.
Peak branch drop risk during heat waves. Keep clearance over structures and walkways. Do not overwater — established camphor trees need no supplemental irrigation.
Leaf drop is minimal (evergreen) but berries create mess on hardscaping. Good time for structural pruning if winter window is too wet. Assess canopy weight before storm season.
Detailed Notes
Root Damage Assessment
If you see cracked foundations, lifted sidewalks, or slow drains within 40 feet of a camphor tree, the roots are likely the cause. A camera inspection of sewer laterals can confirm root intrusion. Root barriers installed after the fact are rarely effective on mature trees — the root system is already established.
When Removal Makes Sense
Removal is often the best option when: roots have damaged the foundation, sewer line repairs cost more than removal, the tree is within 15 feet of the house, or the canopy is so dense that nothing else grows. Many cities will approve removal permits for camphor trees causing documented infrastructure damage.
Invasive Status
Camphor tree is listed by Cal-IPC as moderately invasive in coastal California. It spreads readily via bird-dispersed fruits and can colonize riparian areas and open spaces. Some Bay Area cities are phasing camphor out of approved street tree lists.
Arborist Pro Tips
Frequently Asked Questions
Is camphor tree invasive in the Bay Area?
Yes, camphor tree is listed as moderately invasive by the California Invasive Plant Council (Cal-IPC) in coastal areas. Birds spread the fruit widely, and seedlings establish easily in gardens, open spaces, and riparian corridors throughout frost-free parts of the Bay Area.
Will camphor tree roots damage my foundation?
Camphor trees have one of the most aggressive root systems of any Bay Area landscape tree. Roots commonly crack foundations, lift sidewalks, and invade sewer lines within a 40–60 foot radius. If your camphor tree is within 20 feet of your house, root damage is likely over time.
Can I get a permit to remove a camphor tree?
Most Bay Area cities will approve removal permits for camphor trees when you can document infrastructure damage such as foundation cracks, sewer line intrusion, or sidewalk lifting. An arborist report documenting the damage strengthens your application significantly.
How do I stop camphor tree seedlings?
Pull seedlings as soon as you spot them — they develop a deep taproot quickly that makes removal difficult after the first year. Reducing fruit production is nearly impossible on a mature tree. Some homeowners use pre-emergent herbicide in garden beds to prevent germination.
Is camphor tree good firewood?
Camphor wood burns with a strong medicinal scent that many people find unpleasant. It is not recommended for indoor fireplaces or cooking. The wood is moderately dense and splits easily, but the camphor oils create excessive creosote buildup in chimneys.
How much does camphor tree removal cost?
Large camphor tree removal typically runs $3,000–$8,000 in the Bay Area depending on size, access, and proximity to structures. Stump grinding adds $300–$800. The large trunk diameter and dense wood make camphor among the more expensive species to remove.
Can camphor tree roots be cut without killing the tree?
Minor root pruning (roots under 2 inches) on one side of the tree is usually tolerable. Cutting major structural roots (over 4 inches) risks destabilizing the tree and can trigger rapid decline. Never cut roots on more than one side in the same year.
What should I plant to replace a camphor tree?
Good replacements depend on your goals. For shade: Chinese pistache or zelkova provide similar coverage without aggressive roots. For evergreen screening: podocarpus or southern magnolia. For native options: coast live oak or valley oak in larger lots.
Where to Find Camphor Tree in the Bay Area
Find ISA-certified arborists experienced with camphor tree in these cities:
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Written by Michael Schuck, ISA Certified Arborist WE-15750A · Updated May 2026
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