Tree Service FAQ

Late fall through early spring, while the tree is dormant, for anything structural. Dead, diseased and hazardous limbs come off in any month without harming the tree. Deciduous trees are best cut once the leaves are down; conifers and other evergreens do better in late winter, which also cuts the risk of bark beetle. The month to avoid is the spring flush, when the tree has just spent its stored energy putting new growth out. And the constraint that overrides the calendar is nesting: California Fish and Game Code 3503 makes it unlawful to take, possess or needlessly destroy the nest or eggs of any bird, and 3503.5 covers birds of prey with no needlessly about it. Most California nesting falls between 1 February and 31 August — a convention from the Western Chapter ISA's own guidance rather than a date in the code, because CDFW publishes no standard season. Either way, an active nest moves the date rather than the method.

Not more than a quarter of the live foliage in a growing season, and less than that on an old tree. That figure has a history worth knowing. ANSI A300 carried 25% as a recommendation — a should, never a shall — and the 2017 revision dropped the fixed number altogether in favor of a judgement made per tree. Some cities still use 25% as their own policy for public trees, so the number is alive even though the national standard has moved past it. What has not changed is the reason behind it: a tree pays for regrowth out of stored energy, and an older tree has less of it to spend.

Anything you can reach with both feet on the ground is fair; the ladder is the line. A pole pruner used on limbs you can stand under, well clear of any line, is ordinary yard work and worth doing. Above that the job changes shape — a ladder wants one hand on it and a running saw wants two, which is where most homeowner tree injuries come from. The cutting goes wrong in a predictable way as well: a limb taken in a single pass, overhead and at arm's length, tears bark down the trunk as it falls, and that strip of damage ends up larger than the cut that caused it. Nothing over a roof, nothing near a line, and nothing you would have to climb.

Topping is cutting a limb back to a stub with no lateral big enough to take over, and no — we will not do it. It is also called heading, tipping or rounding over. Everything that goes wrong afterward comes from that one cut: the tree cannot close a wound that size, so decay runs down the open stub; it answers with a mass of fast, weakly attached epicormic shoots; bark that spent decades shaded is suddenly exposed and scalds; and within a decade the tree is taller than it was, held together by attachments that were never structural.

In Santa Ana, our home city, the city does — that strip is public right of way, and the tree standing in it is a street tree. Under SAMC 33-189 the city maintains its urban forest on an average four-and-a-half-year trimming cycle and keeps a clear space of fourteen feet above the street or the sidewalk — one figure covering both, which is unusual. Report one that needs attention to the Public Works Agency on (714) 647-3380 or through the mySantaAna app. The code sets out no permit for a resident to prune one, but the tree belongs to the city and topping it is unlawful under SAMC 33-190, so the call is the better first move than a saw.

Yes, chipped on site and hauled away in our own trucks. Tree trimming generates far more small material than a tree removal does — well past what a green waste cart holds — so the chipper runs alongside the crew rather than at the end, and the pile never builds up across the yard.

Once a year suits most palm trees across Southern California. Twice is better over a pool, a driveway or a walkway, because with palms it is the falling fronds and fruit that cause the nuisance rather than the growth itself. More often than twice is where trimming starts costing the palm rather than helping it.

Both, and the safety half is the one that matters. A palm sheds dead fronds on its own schedule whether or not anybody is underneath, and a frond off a 40-foot crown carries real weight by the time it lands. Seed pods are heavier again. Left long enough, a loaded crown and a built-up skirt put enough weight on one side of the trunk to start a lean that does not straighten out.

Usually because that is what palms do — the oldest fronds die off from the bottom as the crown grows from the top, and a ring of brown below a full green crown is normal aging. What is not normal is browning that starts in the middle of the crown, or a spear leaf at the center that collapses or pulls out easily. That pattern points at disease or at the South American palm weevil, and it is worth an arborist looking rather than a trim.

Late spring, just ahead of the growing season, is the usual answer in this climate — but palms follow how the crown looks far more than the calendar, which is the one way they differ from every broadleaf tree on this site. Dead fronds and heavy seed can come off in any month. Deciduous dormancy rules simply do not apply.

Cutting a palm back to a narrow spike of upright fronds — and no. It looks tidy for a season and it is one of the most damaging things done to palms routinely. The fronds taken are the ones feeding the palm, the trunk narrows permanently at the point it was starved, and bark that spent its life shaded is left exposed. A palm cut that way never recovers the girth it lost.

Yes, and it is cheaper that way. Palm skinning is a separate service from palm trimming, but combining them means one lift-truck set-up instead of two, one crew visit and one quote.

On a short palm you can reach safely from the ground, yes. On anything needing a ladder, this is the wrong job to learn on — and the reason is the trunk rather than the height. A slip that cuts past the boot into trunk tissue leaves a scar the palm carries for the rest of its life, because palms cannot grow over a wound the way a broadleaf tree does. There is a step-by-step guide on our palm tree trimming page if you want to try the crown work first.

No — and it is the question worth putting to anyone who quotes. A palm has no bark and no cambium, so a spike hole never closes: it is in that trunk for the rest of the tree's life, and it is an entry point for trunk rot and an attractant for palm weevils. ANSI A300 bars climbing spurs for pruning and allows an exception only where the outer bark is thick enough to protect the inner bark and cambium — a test a palm can never pass, because it has neither. Everything a lift truck reaches is worked from the bucket; what it cannot reach is climbed on rope.

Any month, though spring and early summer are the easiest. Boots release more readily while the palm is in active growth, which means less cutting and less risk of tearing trunk tissue. In the mild Southern California winter there is no dormancy window to work around the way there is with broadleaf trees — this follows the palm's condition rather than the calendar.

Not when it stops at the dead frond bases — and genuinely, yes, when it does not. ANSI A300 defines the job as removing dead bases at the point they meet the trunk without damaging living tissue, and that is the entire line. Past it, the damage is permanent: a palm has no vascular cambium, so it cannot lay down new wood or close a wound the way a broadleaf tree does. UC IPM goes further on Phoenix palms, naming skinned and sculpted trunks among the risk factors for sudden crown drop and for Fusarium wilt entering through cut tissue. Conservatively done on a fan palm, this is routine work that fire authorities actively ask for. On a Canary Island date it is a judgement call every single time.

Years. A skinned trunk stays clean until new frond bases build back down it, and routine trimming of the crown slows that considerably — most palms need skinning once and then trimming on a normal cycle.

It removes where they were living, which is not the same as removing them. A dead frond skirt is a standard roof-rat nest site across Southern California, and taking it off means they have to go somewhere. If they are already into a roof space or an attic, that is a pest control job and a separate trade — what we can do is make sure the palm is no longer the way in.

The small stuff, yes — and a plan does not stop you. Watering, mulching, keeping suckers down and cutting a low branch you can reach are all perfectly reasonable to do yourself. Where it goes wrong is the cutting: the wrong cut in the wrong place at the wrong time of year does not grow out. A flush cut removes the collar the tree closes wounds with, a stub never closes at all, and a heavy cut during the spring flush hits the tree when its stored energy is already spent. None of those show up for a year or two, which is why people repeat them.

They are separate, and a plan makes the second one rarer. Scheduled visits are priced per visit against the agreed cycle. Storm work is 24/7 emergency response and it is quoted on what is in front of us at the time. What a plan changes is how often that call happens — the deadwood and over-extended limbs that fail first are already off.

By what the last assessment found, not by the calendar. The ISA method rates a tree over a defined time frame — typically somewhere between one and five years — and the rating it comes out with is what sets the date for the next look. A tree rated low risk over five years does not need an annual visit; one rated high does not wait five. On most Southern California properties that produces two schedules rather than one, because palms and broadleaf trees rarely land on the same interval. For comparison, Santa Ana, our home city, caps its own street tree inspections at five years.

An ISA Certified Arborist — and no law obliges you to use one, which is rather the point of choosing to. The risk method itself has its own credential on top: the ISA Tree Risk Assessment Qualification, which has to be re-earned by retraining and retesting rather than renewed on paper. The assessment is as much the point of a maintenance visit as the cutting is, so it wants somebody qualified to say what a tree is doing — and to be wrong about it in writing if they are.

Yes — tree care for HOAs, apartment complexes, business parks and estates across Southern California. Commercial tree service covers the contract side, including scheduling around residents and access.

No — the schedule is an agreement about timing, not a lock-in. Each visit is quoted and approved on its own, so a plan is really a standing appointment plus a record of what the trees are doing. Skip a cycle and the only thing that happens is that the next visit is a larger one, because the work does not stop accumulating while the schedule is paused.

No — and that is the point worth understanding. Liability turns on the condition of the tree beforehand, not on whether anybody was home. A healthy tree brought down by a storm is normally each owner's own insurer. A tree that was dead, diseased or visibly failing before it went is the owner's problem, and "nobody was there to notice" is closer to the argument against you than for you. On a property you are not living at, a documented inspection cycle is the only thing that makes the difference.

Any property where the trees are part of the value of the place — established grounds, hillside lots, long driveways, and gardens where a single mature specimen would be expensive and slow to replace. Acreage matters less than what is growing on it.

In practice, usually yes — and they can generally cut it themselves regardless. In California a neighbor may trim what crosses onto their land back to the boundary at their own expense, without asking. Where an encroachment is causing an actual nuisance, they can press the owner to deal with it even if nothing has been damaged yet. The reason to act first is not the law but the cut: a limb taken off arbitrarily at a property line is the cut most likely to disfigure or destabilize the tree, and it is your tree.

By specifying the report before the work rather than inspecting the tree after it. The ANSI A300 tree care standards set out what a scope of work should specify, and four of its six items are about the reporting rather than the cutting: the level and detail of the assessment, the type of report, the time frame for reporting, and who the report is presented to. All four can be agreed in writing before a crew is ever booked onto the property. The standard is written for exactly this — it names property owners and property managers among the people it is intended for, alongside arborists and utilities. Ask for photographs of each specimen before and after as well, and an absent owner finishes with a better record of the work than an owner who stood and watched it and wrote nothing down.

Yes, and that is most of the value. An arborist who saw the property last year assesses this year's growth against what the trees were doing then, rather than starting from scratch every visit.

Yes. Estate work is quoted the same way whether the instruction comes from an owner or a manager, and commercial tree service covers managed portfolios across Southern California.

Landscaping installs; lawn care maintains. Landscaping is the design and installation of both halves of a yard — the softscape, meaning plants, trees, turf and ground cover, and the hardscape, meaning paving, walls, walkways and edging. Lawn care is the recurring work that keeps the result alive afterward: mowing, edging, feeding and checking the irrigation. They are separate contracts, frequently from separate companies, and the join between them is where warranty arguments happen. Worth settling which one you are actually buying before the first visit.

Yes, but the tree sets the rules and the design works around them. Three constraints decide it. Soil must not be piled over the root flare or against the trunk, so a raised bed built around an existing trunk is a slow way to kill it. Irrigation must not be trenched through the root zone, because the roots cut to run that line are the ones holding the tree up. And the planting has to tolerate shade and drought together, since a mature tree takes most of the water in its own root zone before anything underneath it sees any. Get this wrong and you lose the tree — the one thing in a yard that money cannot put back on any useful timescale.

Fall, and it is not close. Planting in October or November hands roots the whole cool wet season to establish in before they are asked to survive a summer, which is the test that kills new planting. Spring works with attentive irrigation. Summer planting is possible and done routinely, but it means hand-watering through establishment and a higher failure rate on anything that misses a week. Where a schedule has any flexibility in it at all, moving an installation to fall is the cheapest single thing that improves its odds.

No — but the lawn is where nearly all of the saving is. Turf is the thirstiest planting on a typical residential property, so reducing its area moves the water bill more than any other change in the yard. Reducing is not removing: keeping lawn where it is walked on and replacing it where it is only looked at usually cuts the irrigated area substantially while leaving the part of it you actually use. Where turf comes out entirely, what replaces it matters — a planted low-water scheme holds up in this climate, while bare gravel gets hot enough to cook whatever is planted beside it.

It changes what a buyer decides before they get out of the car, which is not the same thing as a line on an appraisal. Front-yard planting is the first thing anyone sees and among the cheapest things on a property to change, so it moves the impression a house makes out of all proportion to what it costs. What it does not do is appear as an itemized figure the way a kitchen does — appraisers treat site improvements as part of overall condition and appeal rather than as a separate number. One caution worth hearing: a design that visibly needs constant work can read as a liability instead of an asset, because buyers price maintenance too.

Yes, and it can run on the same schedule as the tree work. New planting is at its most vulnerable through its first two summers, which is exactly when it tends to be left alone because it already looks finished. Maintenance visits cover the irrigation as much as the planting — a controller still running last year's program is the commonest reason a scheme thins out for no visible cause.