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When to Prune Trees in Cameron Park
Wondering if now's the right time to trim? Call us at (530) 380-5512, and a Cameron Park area tree pro can come say for sure. Or read on and see what each season is good for.
Every rule below comes with a reason. Once you know the why, the calendar makes a lot more sense.
Any time of year
Dead, weak or sick branches can come off whenever you notice them. The International Society of Arboriculture, or ISA, says that kind of pruning has little effect on the tree in any month. A dead limb over the driveway shouldn't wait for the "right" season.
Winter: December to February
This is the big one for trees that lose their leaves. Valley and black oaks lose their leaves, and the UC Master Gardener oak talk puts their pruning in winter. You can see every branch, and the tree is resting.
Late winter also has a bonus. Per the ISA, cuts made shortly before spring leaf-out heal fastest and set up the best growth.
Other winter jobs:
- Flowering pears with fire blight. UC says winter is the best time to scrape out cankers, while the tree is dormant.
- Sycamores and ash with anthracnose. UC says to prune out infected twigs in fall or winter.
- Trees with powdery mildew. UC says to take off infected buds in the dormant season.
- Pines, but only until February starts. After that, beetle season begins.
Spring: March to May
Spring is mostly a hands-off time for big live cuts. Trees have just spent a lot of energy putting out leaves. The ISA says heavy pruning right after that flush should be avoided, especially on weak trees.
Pines are off limits now. From February to mid-October, adult bark beetles are flying, and UC wants pines left uncut. The same guide says to leave elms alone from March to September.
Spring is a great time to look, though. Watch new leaves for blotches after a wet spell. UC says anthracnose is worst when long spring rains come after new growth. On pears and apples, UC also says not to water during bloom, since water helps spread fire blight.
Summer: June to August
Summer belongs to the evergreen oaks. The Master Gardener rule says to prune interior live oak and canyon oak in summer, the opposite of the leaf-droppers.
It's also a fine time to cut fire blight out of pears, UC says, once the infections have stopped spreading.
Keep an eye up, too. The Master Gardener talk describes summer branch drop on oaks, which often happens on hot, calm days. Big level limbs over the house or drive are worth a look before the heat peaks.
And water. Cameron Park summers usually run 90 to 100 degrees. In a dry year, UC's tip for pines is a long, deep soak every couple of weeks, under the outer branches.
Fall: September to November
Fall here often feels like more summer, hot and dry. Once mid-October passes, pines open up for pruning again. Late fall into winter is the sweet spot for a pine over the roof.
Fall is also clean-up season before the rains. Check gutters and roofs for needles and leaves, as the Cameron Park fire guidelines ask. UC's fire network checklist adds a mulch tip. Don't lay fresh mulch during fire season, and wait for the fall rains so it can settle.
A quick cheat sheet
| Tree | Best time for live cuts | Avoid |
|---|---|---|
| Valley, black and blue oak | Winter | Big cuts right after spring leaf-out |
| Interior live oak, canyon oak | Summer | Heavy cuts on a stressed tree |
| Pines (gray, ponderosa) | Mid-October to January | February to mid-October |
| Elms | October to February | March to September |
| Flowering pear with fire blight | Winter or summer | Bloom time |
| Dead branches on any tree | Any time | Waiting too long |
Sources: UC Master Gardeners, oaks talk for El Dorado County (2020); UC IPM pest notes on bark beetles, fire blight and anthracnose; ISA "Pruning Mature Trees".
Not sure what kind of tree you've got? That's fine. Call (530) 380-5512 and describe it. Does it keep its leaves in winter? Does it have needles? That's enough to start. See also oak pruning in Cameron Park and drought-stressed trees.