Tree and Shrub Care Services

Tree and shrub care services encompass the professional maintenance, treatment, and structural management of woody plants on residential and commercial properties. These services span routine pruning and fertilization through emergency hazard removal and pest intervention. Proper woody plant management directly affects property safety, structural integrity of hardscape features, and long-term landscape investment value. This page explains how these services are defined, how they operate in practice, the scenarios where they apply, and how to distinguish between service types.

Definition and scope

Tree and shrub care services are a specialized subset of professional landscaping services focused exclusively on perennial woody plants — both trees and shrubs — rather than turfgrass or annual plantings. The scope separates into two broad plant classes:

• Trees: Typically defined as woody perennials with a single main stem (trunk) reaching at least 13 feet in height at maturity, though the USDA Forest Service recognizes minimum diameter thresholds that vary by species classification.
• Shrubs: Woody perennials with multiple stems originating at or near ground level, generally under 13 feet in height.

The scope of professional care within this category includes pruning and shaping, fertilization, pest and disease diagnosis and treatment, cabling and bracing, root zone management, planting and transplanting, and removal. The International Society of Arboriculture (ISA) sets widely adopted standards for tree care practice, including ISA Best Management Practices (BMPs) that define service quality benchmarks used by certified arborists across the United States.

This service category is distinct from hedge trimming and pruning services, which focus primarily on formal shaping of ornamental hedges rather than the structural and health management of individual specimen trees.

How it works

Professional tree and shrub care follows a structured diagnostic and treatment workflow:

1. Site assessment: A certified arborist or trained technician evaluates the species, age, structural condition, and site-specific stress factors (soil compaction, drainage, proximity to structures) for each plant.
2. Crown evaluation: The canopy is inspected for dead, crossing, or co-dominant branches; signs of decay; and overall structural load distribution.
3. Soil and root zone testing: Soil pH, compaction levels, and nutrient availability are measured. Many providers use a standard soil test through a state extension lab to identify deficiencies before prescribing fertilization.
4. Treatment prescription: Based on assessment findings, a treatment plan is developed. This may include structural pruning following ANSI A300 standards, fertilization, pest treatment, or root zone aeration (also called vertical mulching or air spading).
5. Service execution: Work is performed using equipment appropriate to the plant size and condition. Tree work above 10 feet typically requires aerial lift equipment or climbing certification under OSHA 1910.269 or 1926 Subpart R standards for fall protection.
6. Post-service documentation: Reputable providers document work performed, species treated, and any conditions requiring monitoring.

Fertilization for trees differs meaningfully from lawn fertilization services. Tree root systems extend well beyond the drip line and require subsurface application methods — typically deep-root liquid injection at intervals of 12 to 18 inches — rather than broadcast surface spreaders used for turfgrass.

Common scenarios

Tree and shrub care services are deployed across a predictable set of property situations:

Routine maintenance cycles: Deciduous trees are typically pruned during dormancy (late fall through early spring) to minimize disease transmission and stress. Flowering shrubs follow species-specific timing — spring bloomers are pruned immediately after flowering; summer bloomers are pruned in late winter before bud break.

Storm damage response: High-wind and ice events create urgent service needs. Broken limbs and split crotches pose immediate fall hazards. Emergency tree work on properties where falling limbs threaten structures is one of the highest-risk service scenarios and requires providers carrying appropriate landscaping service insurance.

Disease and pest management: Common tree diseases affecting US properties include Dutch elm disease (Ophiostoma ulmi), oak wilt (Bretziella fagacearum), and fire blight in ornamental pears and crabapples. Pest problems include emerald ash borer (EAB), a wood-boring beetle that has killed an estimated 100 million ash trees across 35 states (USDA Animal and Plant Health Inspection Service), and spongy moth (formerly gypsy moth) defoliation events.

New construction and transplanting: Trees planted in new construction settings often suffer transplant shock from root zone disturbance. Professional aftercare protocols — including proper mulching to a 3-inch depth around the root collar — significantly improve establishment rates.

Structural hazard mitigation: Co-dominant stems (two trunks of similar diameter competing for the same crown space) are a primary failure point in mature trees. Cabling systems anchored to ANSI A300 Part 3 specifications redistribute load and extend tree lifespan.

Decision boundaries

Choosing between service types or between professional and self-performed work depends on specific risk and scale factors. The diy-vs-professional lawn care framework applies with heightened weight for tree work due to fall and drop-zone hazards.

Certified arborist vs. general landscaper: Tree work requiring work above ground level, structural assessment, or pest diagnosis should be performed by an ISA-certified arborist. General landscapers without arborist credentials are appropriate for ground-level shrub trimming and ornamental bed maintenance.

Removal vs. preservation: Tree removal is irreversible. Before removal, a structural assessment by a qualified arborist determines whether the tree poses an actual hazard or simply requires corrective pruning. The Tree Risk Assessment Qualification (TRAQ) credential issued by ISA standardizes this assessment methodology.

Shrub replacement vs. renovation pruning: Overgrown shrubs that have exceeded their intended space are often removed and replanted rather than hard-pruned. Shrubs losing more than one-third of their canopy in a single pruning cycle face significant recovery stress, making phased renovation pruning over 3 annual cycles preferable for established specimens.

Understanding service scope boundaries also informs how these services are bundled. Landscaping service bundles and packages frequently combine routine shrub trimming with mulching services and seasonal lawn cleanup services to maintain consistent property presentation across the growing season.

References

• International Society of Arboriculture (ISA)
• ANSI A300 Tree Care Standards — Tree Care Industry Association
• USDA Animal and Plant Health Inspection Service — Emerald Ash Borer
• USDA Forest Service
• ISA Tree Risk Assessment Qualification (TRAQ)
• OSHA Standard 1910.269 — Electric Power Generation, Transmission, and Distribution
• ISA Best Management Practices Series