Tree Trimming & Pruning

What trimming actually accomplishes

Most pruning work falls into four jobs. Deadwooding removes dead and broken limbs before they come down on their own — the single highest-value pruning you can do on a mature tree near a house or a driveway. Clearance pruning lifts the canopy off a roof, a chimney, a power drop or a road. Thinning opens a dense crown so wind moves through it instead of pushing against it, which matters on the Front where chinooks come off the mountains hard. Structural pruning on younger trees corrects competing leaders and bad branch angles while the cuts are still small.

What we don't do is top trees. Cutting a mature canopy back to stubs is still common and it is genuinely destructive — it triggers a mass of weak regrowth, opens large wounds the tree can't seal, and creates a more hazardous tree three years later than the one you started with. If a tree is too big for its position, the honest answer is usually removal and replanting with something appropriate, not topping.

When to prune in Montana

For most species here, late winter through early spring — while the tree is dormant and before bud break — is ideal. The structure is visible without leaves, the cuts seal quickly once growth starts, and insects and disease spores are inactive.

There are exceptions worth knowing. Anything in the ash family is best pruned in dormancy to avoid attracting borers. Elms should not be pruned in the growing season in areas with Dutch elm disease pressure. Aspen and birch push sap heavily in early spring, so they're better pruned in summer once fully leafed out.

Dead, broken and actively hazardous limbs are the exception to all of it. Those come out whenever they're found, in any season. A limb hanging over a walkway doesn't wait for February.

How we work

We climb, or work from a bucket where access allows. Spikes are never used on a tree that's being kept — they puncture the bark and leave entry points for decay. Cuts are made at the branch collar so the tree can seal them properly.

Before starting we'll walk the tree with you and agree what's coming off. You should know what the tree will look like when we're done before the first cut, not after. Brush goes through the chipper and the ground gets raked clean.

The species we're usually working on

Ponderosa pine responds well to having its lower canopy lifted, which is also the single most useful thing you can do for fire clearance. It doesn't take kindly to heavy crown reduction. Douglas fir holds dead lower branches for years — deadwooding it makes a visible difference and reduces ladder fuel at the same time.

Plains cottonwood is the one that generates most of our emergency calls. It grows fast, the wood is soft, and mature trees shed large limbs with very little warning. Regular deadwooding and reduction of over-extended limbs is genuinely preventative work on a cottonwood near a house.

Green ash is common through Great Falls and the valley and should be pruned in dormancy. Quaking aspen is thin-barked, damages easily, and suckers freely — it wants a light touch and summer timing. Colorado blue spruce rarely needs much beyond removing dead lower whorls and any competing leader.

What a pruning visit looks like

We walk the trees with you and agree the scope before starting — which limbs, how much, and what the tree will look like afterward. If what you're asking for would damage the tree, we'll say so and offer the alternative rather than doing it and taking the money.

The climbing is done on rope and saddle, without spikes. Cuts are made at the branch collar, sized so the tree can seal them. Brush is chipped as we go rather than piled up for a single haul at the end, so the site stays workable.

Afterward the ground is raked and blown clean. On a pruning job you should barely be able to tell we were there, apart from the tree looking better.