Boulder's holistic regenerative arborist

A holistic regenerative arborist treats trees and the soil they grow in as part of a living ecosystem, not as isolated objects to be pruned or removed on demand. Regenerative practice means building conditions that allow trees to thrive long-term -- healthier soil biology, reduced chemical dependency, structural support that works with the tree rather than against it. Kryn Dykema applies this philosophy to residential and commercial tree care across Boulder County, informed by years working alongside regenerative landscape designers whose sustainable approach is transforming how Colorado properties are managed.

Because in Colorado it turns the root zone into a desert. Pull the mulch and the weed barrier back on a typical Boulder planting bed and the soil underneath looks like the Sahara Desert: cracked earth, squiggle trails where worms used to travel, and no moisture at all. There is so little moisture here to begin with that when what does fall hits any kind of resistance, it pools on top of the fabric instead of passing through. In a wet climate the water would work its way down. Here it does not. The barrier also starves the soil of oxygen. Soil health comes down to three things: retaining moisture, allowing oxygen flow, and keeping an insulating layer over the top. Weed barrier defeats the first two. The fix is to remove it and lay down thick mulch instead, which insulates the soil and holds moisture in it.

Two hours or more of sprinkler running over the square footage at the base of the tree, not thirty minutes. During the dry season you are not wetting the surface, you are rebuilding a water table, and it takes that long to get water soaking roughly 14 inches into the soil, which is the depth where it can transfer nutrients from the soil into the tree. The single best thing a homeowner can do is a shake-and-feed fertilizer around the base of the tree followed by a deep watering. That combination is a giant drink of electrolyte water for the tree. It does drive the water bill up. It is also the difference between a green, vibrant tree and one slowly losing ground.

Because grass wins the competition for water. If you run thirty minutes of irrigation over a tree whose roots sit four inches down, under three inches of turf, the grass soaks up nearly all of it before it ever reaches the tree. It works like a basil plant in a small pot: dense root system, and the soil is bone dry the next day because the plant pulled every bit of water out of it. Removing turf at the base of the tree and replacing it with a mulch layer gives the tree the three things soil needs to stay healthy: moisture retention, oxygen transfer, and insulation.

When the trees you have are around 40 years old. A young tree needs roughly 15 years to genuinely establish itself, so if you wait until the old trees are declining and dropping limbs, you have a 15 year gap in your canopy. Plant at 40 and by the time that tree reaches 50 and is approaching the end of its lifespan here, there is already an established generation growing underneath it. Staging tree generations this way is one of the things a good arborist should be doing for a client, and it also means keeping the younger trees from being height-limited by the limbs of the older ones above them.

Often yes, and filling the cavity is frequently the better answer. A cavity usually starts as a pruning cut made horizontal to the sky, so rain falls straight into it, the cut never seals, and it hollows out. Some of these are big enough to put an arm into. Filling that space with a structurally sound material keeps water out and keeps the limb. The alternative matters: those cavities are often in limbs 12 to 14 inches wide, and cutting one of those out creates a huge wound and removes a large portion of the leaf area the tree uses to collect sun and produce the sugars it eats. Cavity filling is old arboricultural practice going back to the 1920s, and it is something Kryn does regularly in Boulder. He has not seen another arborist in town doing it. Most either leave the cavity open or take the whole limb.

Not always. Borers and other insects go after weak trees. It works like a weak immune system: if someone coughs around you when you are run down you catch it, and if you have been eating well and taking care of yourself your body fights it off. A dry, stressed ash is far more susceptible to ash borer than a well-watered one. Search online and you will read that an infested ash has a two year lifespan and that injecting and pruning will not work. Kryn has brought ash trees back that other arborists called removals, and the same is true of maples written off with a dead top. The honest answer is that it depends on the specific tree, which is what an assessment is for. What is certain is that a tree kept watered and fed is a much harder target.

ISA certification means the arborist has been tested on tree biology, diagnosis, pruning standards, and safety, and has to maintain that credential. In practical terms it changes the order of operations: the work starts with identifying what is actually wrong with the tree, rather than quoting the removal. It also matters in Boulder specifically, because the City restricts work on public right-of-way trees and on pest-infested trees to licensed certified arborists.

Storm-damaged and hazardous trees are handled as a priority. Deadwood, hanging limbs, and trees that have failed but not fallen do not wait for a seasonal window. Call 303-630-9772 and describe what happened and what is underneath the tree.

Boulder is home base, with service extending across Boulder County and into Broomfield: Boulder, Louisville, Lafayette, Longmont, Niwot, Erie, Superior, Lyons, Nederland, and Broomfield. Mountain properties up Boulder Canyon and out toward Lyons are included, and those are frequently wildfire mitigation jobs rather than yard tree work.

You call, we schedule a visit, and every visit comes with a thirty minute arrival window from the appointment time so you are not blocking off an afternoon. The visit is an assessment: what the trees are doing, why, and what the realistic options are, including the option of doing nothing yet.

Not if there is a real alternative. Removing a tree eliminates the shade, the wildlife habitat, and the enjoyment it provided, and it is expensive. Where treatment, pruning, or a support system can make a tree acceptable, that is the recommendation. Removal is what happens when a tree is genuinely too far gone or in a conflict that cannot be resolved.

Yes. Boulder Tree Surgeon is licensed and insured, and the owner, Kryn Dykema, holds ISA Certified Arborist credential RM-8846A.