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newSchoolWorks.com › VoTechWorks › Agriculture, Environment & Public Service › Agriculture / Horticulture / Landscaping › Capstone Project: Integrated Landscape & Horticulture Build › Lesson 3
AGR-HORT49-09 · Lesson 3 · 60 clock hours · practice

Site Installation and Field Execution

Objective. Students install the approved project according to their documentation package—completing bed preparation, plant installation, mulching, edging, and irrigation connection—while maintaining an installation log, applying correct PPE and OSHA work-site safety practices throughout.

⚠ Pending professional review

This lesson, its worked examples and its practice questions has not yet been verified by a licensed professional in the field or by a certification or approval body. It is a study draft and may contain errors. Do not use it as instructions for work on a job site or on live equipment. Always follow your instructor, your supervising professional, and current official references and regulations.

VoTechWorks program approval and accreditation are still in progress. Credentials are issued only by the certifying bodies named in each program, after their own exams.

Site Installation and Field Execution

The installation phase is where every hour of planning, soil testing, and design work becomes a physical reality. A professional installation is measured not only by how good the site looks on the final day, but by how safely and accurately the work was carried out from the first shovel strike to the last irrigation test. This lesson walks through the full sequence of a landscape build and the standards you are expected to meet.

Pre-Installation Safety: The Tailgate Meeting

Before any tool leaves the truck, hold a tailgate safety meeting. This short, structured conversation is standard professional practice and is required on this project before the instructor signs off on groundbreaking.

At the meeting, the crew identifies every site hazard: underground utilities (always call 811 before digging), slopes that could cause slips or equipment rollover, overhead power lines, and traffic or pedestrian exposure. Assign a spotter whenever power equipment is operating near people or structures—the spotter's only job is to watch for hazards.

Confirm PPE requirements for every task planned that day. At minimum: gloves and safety glasses for all hand-tool work; steel-toed boots throughout the project; hearing protection whenever a power edger, chipper, or other loud equipment is running. As a rule of thumb, if you have to raise your voice to be heard at arm's length, hearing protection is required.

Review the lockout/tagout (LOTO) procedure for any powered irrigation tool or equipment with a stored-energy risk. LOTO means isolating the energy source—electrical, hydraulic, or pneumatic—and verifying it is de-energized before anyone performs maintenance or clears a jam. Post the completed OSHA hazard-identification checklist where the crew can see it.

Bed Preparation

Proper bed preparation is the foundation of plant health. Work in this order:

1. Edge the bed perimeter using an edging spade or power edger to create a clean, defined line that matches the approved plan.

2. Incorporate soil amendments identified by your soil test—compost, lime, sulfur, or other materials at the rates the test report recommended. Till or hand-incorporate amendments to the depth appropriate for the plants specified.

3. Grade for positive drainage. Water must move away from structures and not pool in the bed. Check grade with a level or by observing water flow during the water-in step.

Photograph each step and record start and finish times on your installation log. If field conditions force a change—unexpected rock, a buried pipe, a grade problem—document the change and your written justification before continuing.

Plant Installation

Carry the approved plan onto the site and lay out all plants in their approximate locations before digging. Verify placement is within 6 inches of plan coordinates. This two-minute check prevents costly re-digging.

Dig each hole two to three times as wide as the root ball and no deeper than the root ball height. Set the plant so the root flare—where the trunk widens at the base—sits at or slightly above finished grade. Burying the root flare causes crown rot and is one of the most common installation errors. Backfill with the native soil (amended if the soil test directed), firm gently to eliminate air pockets, and water in thoroughly to settle the soil.

Apply mulch at the specified depth—commonly 2 to 3 inches for most landscape beds—and keep mulch at least 2 to 3 inches away from plant stems and tree trunks. Mulch piled against stems holds moisture against bark and creates a habitat for pests and disease.

Edging and Hardscape Elements

Install any edging material—steel, aluminum, composite, or natural stone—according to the design. Edging should be straight or smoothly curved with no humps, set flush with or just below the lawn side so mowing equipment passes without catching. Stake or spike edging per the manufacturer's instructions.

Irrigation Connection and Testing

With planting complete, connect the irrigation system to the water supply per your design. Open the supply slowly to purge air, then run each zone in sequence. Observe head-to-head coverage: each sprinkler head's spray should reach the adjacent head. Check drip emitters for flow. Record operating pressure and run-time settings in the installation log.

Adjust any head that is blocked, tilted, or misaligned. After adjustments, run each zone a second time and check for dry spots. Document the final settings.

Pesticide Application Under Supervision

If your instructor assigns a pesticide-application scenario, the label is the law—this phrase is foundational to your State Pesticide Applicator credential. Before touching any product:

Waste and rinse water must be managed as the label directs. Record the product name, EPA registration number, application rate, area treated, date, time, and applicator name in the installation log.

Completing the Installation Log

Your installation log is a professional record and part of your grade. Every entry must include the date, task performed, materials and quantities used, start and finish time, photographs, and any field changes with written justification. A complete log protects you professionally, satisfies regulatory record-keeping requirements for pesticide use, and supports the oral defense you will complete in the next lesson.

Key terms9

Root flareThe widened base of a tree or shrub trunk where it transitions to the root system; it must be set at or slightly above finished grade to prevent crown rot.
Positive drainageA grading condition in which surface water flows away from structures and does not pond in planting beds.
Lockout/tagout (LOTO)An OSHA-required safety procedure for isolating and de-energizing powered equipment before maintenance or service is performed, preventing unexpected start-up.
Tailgate safety meetingA brief, on-site crew meeting held before work begins to identify hazards, confirm PPE requirements, assign roles, and review emergency procedures.
Head-to-head coverageAn irrigation design principle in which each sprinkler head's spray radius reaches the adjacent head, providing uniform water distribution across the zone.
Label is the lawA core pesticide-safety principle stating that the product label is a legally binding document under FIFRA; applying a pesticide in any manner inconsistent with its label is a federal violation.
Installation logA written field record documenting tasks performed, materials used, quantities, times, photographs, and any plan deviations with justification throughout a landscape installation.
Soil amendmentAny material—such as compost, lime, or sulfur—incorporated into existing soil to improve its physical or chemical properties based on soil-test recommendations.
SpotterA designated crew member whose sole responsibility during power-equipment operation is to watch for nearby hazards, people, or obstructions and signal the operator.

Worked examples4

1. Your pesticide label calls for 2 fluid ounces of concentrate per gallon of water per 1,000 square feet. Your treated bed measures 15 feet by 20 feet. How many fluid ounces of concentrate do you need if you plan to mix exactly enough spray for the job?
  1. Calculate the bed area: 15 ft × 20 ft = 300 sq ft.
  2. Determine what fraction of 1,000 sq ft your bed represents: 300 ÷ 1,000 = 0.30.
  3. Calculate the concentrate needed: 2 fl oz × 0.30 = 0.60 fl oz of concentrate.
  4. Calculate the water needed: 1 gallon × 0.30 = 0.30 gallon (about 38 fl oz) of water.
  5. Mix 0.60 fl oz of concentrate into 0.30 gallon of water to produce the correct spray volume for 300 sq ft.
Answer: You need 0.60 fluid ounces of concentrate mixed into 0.30 gallon of water.
2. Your design calls for 3 inches of mulch in a bed that is 12 feet by 8 feet. Mulch is sold by the cubic yard. How many cubic yards do you need?
  1. Convert mulch depth from inches to feet: 3 in ÷ 12 = 0.25 ft.
  2. Calculate cubic feet of mulch needed: 12 ft × 8 ft × 0.25 ft = 24 cu ft.
  3. Convert cubic feet to cubic yards (1 cu yd = 27 cu ft): 24 ÷ 27 ≈ 0.89 cu yd.
  4. Round up to the next practical purchase quantity; order at least 1 cubic yard to ensure full coverage.
Answer: You need approximately 0.89 cubic yards; order 1 cubic yard.
3. A tree ball-and-burlap root ball measures 18 inches in diameter and 14 inches tall. What is the minimum hole width you should dig, and how deep should the hole be?
  1. Minimum hole width = 2 to 3 times the root ball diameter: 18 in × 2 = 36 in minimum width (3 ft).
  2. Hole depth = equal to the height of the root ball, not deeper: 14 inches deep.
  3. Confirm the root flare will sit at or just above finished grade after setting the ball in the hole at 14 inches depth.
  4. Do not add loose amendment to the bottom of the hole; backfill with native or test-directed amended soil to prevent settling below grade.
Answer: Dig a hole at least 36 inches wide and exactly 14 inches deep.
4. You are mixing a spray solution and the label states a rate of 1.5 ounces of concentrate per gallon. You have a 4-gallon backpack sprayer you want to fill completely. How much concentrate do you measure out?
  1. Identify the rate: 1.5 fl oz per 1 gallon of finished spray.
  2. Multiply by the number of gallons: 1.5 fl oz × 4 gallons = 6 fl oz of concentrate.
  3. Add the concentrate to the sprayer first, then fill to the 4-gallon mark with water, agitating as you fill.
  4. Verify all required label PPE is on before measuring or pouring concentrate.
Answer: Measure 6 fluid ounces of concentrate for a full 4-gallon sprayer.

The math in this lesson1

Learners scale a 2 fl oz per gallon per 1,000 sq ft label to a 300 sq ft bed for concentrate and water.
6.RP.3
In class: Hold a pre-installation safety tailgate meeting: students identify site hazards (underground utilities, slope, power equipment), assign spotter roles for equipment use, confirm PPE requirements (gloves, safety glasses, steel-toed boots, hearing protection when using power equipment), and review lockout/tagout procedure for any powered irrigation tools; instructor signs off on the safety checklist before groundbreaking. · Execute bed preparation (edging, soil amendment incorporation per soil-test recommendations, grading to positive drainage), plant installation following the approved plan layout, backfill and water-in procedure, mulch application at specified depth keeping mulch away from plant stems, and installation of edging or hardscape elements; students photograph each phase and record start/finish times, materials used, and any field changes with written justification in the installation log. · Connect and test the irrigation system: open the water supply, run each zone, observe coverage, adjust heads or emitters as needed, and record operating pressure and run-time settings; if pesticide application is required for the site (instructor-determined scenario), students read the product label aloud, identify required PPE, calculate application rate for the treated area, and demonstrate mixing and application technique in compliance with State Pesticide Applicator label-following requirements—all under direct instructor supervision.
Materials: Hand tools (shovels, trowels, edging spade, hand pruners), power edger, wheelbarrow, mulch, soil amendments per test results, approved plant material, edging material, irrigation components per design, personal protective equipment (gloves, safety glasses, steel-toed boots, hearing protection), installation log forms, camera or smartphone, OSHA 10 hazard-identification checklist, pesticide label for demonstration product, measuring cup and backpack or pump sprayer, first-aid kit on site
Check: Instructor evaluates installation against the approved plan using a field performance rubric: plant placement within 6 inches of plan location, correct planting depth (root flare at or slightly above grade), mulch depth and clearance from stems, edging alignment, irrigation coverage with no dry spots observed during zone test, and safety compliance throughout (zero PPE violations recorded); students must pass the safety checklist 100% and score at least 70% on the installation rubric to qualify for the oral defense.

Practice check8

Answer each question, then check it. Nothing is recorded; this is your own practice.

Worksite safety / OSHA compliance
1. During the pre-installation tailgate meeting, a student notices the bed area is near the building foundation and a buried irrigation line may cross the dig zone. What is the correct first action before any digging begins?
Worksite safety / PPE
2. A student is operating a power edger for the first time. Which PPE combination is required while the edger is running?
Plant installation / Horticulture principles
3. A tree is planted so that 2 inches of the root flare are buried below finished grade. What problem is most likely to result over time?
Irrigation installation and testing
4. After running the first irrigation zone, a technician notices a 4-foot dry circle between two sprinkler heads. What is the most likely cause?
Pesticide application / State Pesticide Applicator
5. A pesticide label states the application rate is 2 fl oz of concentrate per gallon per 1,000 sq ft. The area to be treated is 500 sq ft. How much concentrate is needed for one gallon of water applied to that area?
Pesticide law and licensing / State Pesticide Applicator
6. Which statement best describes the legal status of a pesticide label under federal law?
Plant installation best practices / NALP LIC
7. Mulch has been applied correctly at 2.5 inches deep across a new planting bed, but a student piled extra mulch up against the trunk of a newly installed ornamental tree. What is the correct corrective action?
OSHA safety standards / Worksite safety
8. A crew member needs to clear a jam in a powered irrigation valve actuator tool. What must happen before anyone reaches into the mechanism?
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