- What the Certified Grounds Technician Exam Actually Tests
- Qualify and Register Before You Open a Book
- Format, Timing, and the 80% Bar
- Working Through the Seven Content Categories
- A Domain-by-Domain Study Sequence
- Using Your Assigned Mentor Well
- What Is Not Published (and How to Plan Around It)
- Exam-Window Logistics
- After You Pass: Careers and Renewal
- Frequently Asked Questions
- The CGT is administered by the Professional Grounds Management Society (PGMS): 50 questions, 90 minutes, 80% to pass.
- Seven content categories apply, but PGMS publishes no percentage weights, so study all seven.
- Fees run $150 for members, $250 for non-members, $350 to join and apply, and $50 for a retest.
- Once a mentor is assigned, you must test within 30 days and complete the process within one year.
What the Certified Grounds Technician Exam Actually Tests
The Certified Grounds Technician credential is a PGMS program built for people who do the hands-on work of maintaining landscapes: mowing, pruning, fertilizing, irrigating, scouting for pests, and working safely around equipment. It is not a management credential, and it is not a general horticulture degree in disguise. The exam asks whether you can make sound, practical decisions about the plants, turf, and systems you touch every day.
That framing should shape how you prepare. Candidates who treat the CGT like an academic botany test tend to over-study Latin names and under-study the operational questions: when to irrigate, how to recognize a problem, what the safe procedure is. If you want a broader orientation before diving into preparation, the overview in What Is CGT Certification? covers the credential's purpose, and How Hard Is the CGT Exam? gives a frank view of where candidates struggle.
This guide is built around one idea: because PGMS does not publish domain weights, the safest path to passing on the first attempt is balanced competence across all seven categories, plus disciplined use of the mentor process that is part of this certification.
Qualify and Register Before You Open a Book
Studying before you confirm eligibility is a common and avoidable mistake. The CGT has real documentation requirements, and your timeline is partly driven by administrative steps, not just your knowledge.
Eligibility essentials
- A high-school diploma or GED.
- Two years of grounds-maintenance experience.
- Education and employment documentation supporting those claims.
- Applicable sponsor documentation.
The PGMS handbook describes mentor review meetings as part of the process, but it does not frame them as a fixed number of required training hours. In other words, do not assume there is a set course-hour prerequisite; confirm the current expectations directly with PGMS. For a full breakdown of eligibility, see CGT Requirements: Eligibility, Prerequisites & How to Qualify.
The fee structure
| Path | Fee |
|---|---|
| PGMS member | $150 |
| Non-member | $250 |
| Join PGMS and apply together | $350 |
| Retest | $50 |
Notice the arithmetic: a non-member pays $250 for the exam alone, while joining and applying costs $350. Whether membership makes sense depends on whether you value the other PGMS benefits and on your longer-term renewal plans, since renewal fees are discounted by membership years (more on that below). The full picture is in CGT Certification Cost: Complete Pricing Breakdown.
Format, Timing, and the 80% Bar
The exam is delivered online with an approved proctor, and you work alongside an assigned mentor as part of the PGMS process. It consists of 50 questions in 90 minutes, which works out to a little under two minutes per question. The passing threshold is 80%, which on a 50-question exam means a very small margin for error. PGMS does not publish how many of the 50 questions are scored versus unscored, so you should assume every question could count and treat each one seriously. See CGT Passing Score: Exactly What You Need to Pass for more on how the threshold works in practice.
A few details are worth being honest about, because other sites sometimes gloss over them:
- PGMS does not publicly disclose a pass rate, so any specific figure you see online should be treated skeptically. The data discussion in CGT Pass Rate: What the Data Shows explains what can and cannot be said.
- The exact mix of question formats is not explicitly verified in public materials.
- Rules on calculators, open-book use, adaptive testing, and unrestricted home proctoring are not verified. Ask your mentor or PGMS what is permitted before test day rather than assuming.
Key Takeaway
An 80% bar on 50 questions means you can afford to miss only about ten. That is achievable for an experienced technician, but only if no single domain is a blind spot. Plan for breadth first, depth second.
Working Through the Seven Content Categories
PGMS organizes the exam into seven official content categories. None of the percentage weights are published, and no category is verified as the heaviest. That makes a weighted-study strategy impossible to justify; the right approach is to build a solid working command of each. The companion piece CGT Exam Domains: Complete Guide to All 7 Content Areas goes deeper on each area. Here is how to think about them from a preparation standpoint.
Domain 1: Basic Plant Care
This is the foundation the other plant-focused categories build on. Expect to reason about how plants grow and what they need to stay healthy.
- Soil and water relationships and why they matter to plant health
- Fertilization concepts: what nutrients do and how over- or under-application shows up
- Mulching, pruning basics, and recognizing stress symptoms
- Planting practices that give new material a fair start
Domain 2: Shade Trees
Trees are long-lived assets, and mistakes compound. Questions here reward understanding of proper care over quick fixes.
- Pruning purposes and correct cut placement versus damaging practices
- Establishing young trees and protecting trunks and root zones
- Recognizing structural defects and decline
- Safety around tree work, which overlaps with Domain 7
Domain 3: Turf Management
For many technicians, this is the daily bread of the job, so expect practical, procedure-oriented thinking.
- Mowing practices, including height and frequency considerations
- Fertility, aeration, and overseeding concepts
- Diagnosing common turf problems and distinguishing cultural from pest causes
- Seasonal timing of maintenance tasks
Domain 4: Shrub and Flower Care
Ornamental beds demand attention to timing and technique. This domain tests whether you know how to keep landscape plantings attractive and healthy.
- Pruning shrubs by function and growth habit
- Seasonal planting and bed maintenance
- Feeding, watering, and deadheading practices
- Matching care to plant type
Domain 5: Pest and Disease Control
Diagnosis comes before treatment. Candidates who jump to chemical answers without identifying the cause tend to lose points.
- Identifying whether a problem is insect, disease, weed, or environmental
- Integrated approaches that prefer cultural and preventive measures
- Safe and legal handling of control products
- Scouting and monitoring habits
Domain 6: Irrigation
Water management ties directly into plant health, turf quality, and resource stewardship. It is a systems topic as much as a plant topic.
- Components of a typical irrigation system and how they fit together
- Scheduling and adjusting watering to conditions
- Spotting leaks, coverage problems, and system failures
- Efficiency and avoiding overwatering
Domain 7: Safety
Safety runs through the whole job, and a candidate who is careless here is a liability. Expect scenario thinking about equipment, chemicals, and work-site hazards.
- Personal protective equipment and when it is required
- Safe operation and maintenance of power equipment
- Chemical handling, storage, and labeling awareness
- Working around traffic, heat, and other site hazards
A Domain-by-Domain Study Sequence
Since no weights are published, the sequence below is built on dependency and on where field experience typically leaves gaps, not on guessed percentages. If you work primarily in turf, for example, you will likely need to reverse-engineer extra time for shade trees or irrigation. Treat this as a template and adjust to your own weak spots; if you want a quick-reference companion, CGT Cheat Sheet: One-Page Review of Must-Know Facts is useful for final review.
Basic Plant Care and Safety
- Start with plant fundamentals because every later domain assumes them
- Read the safety material early so it reinforces everything else
Turf Management
- Cover cultural practices and problem diagnosis
- Pair with your own field observations to anchor concepts
Shade Trees and Shrub and Flower Care
- Study the two woody and ornamental domains together to compare pruning logic
- Focus on timing and technique distinctions
Pest and Disease Control and Irrigation
- Practice diagnosing before treating
- Review irrigation as a system, then tie it back to plant and turf health
Mixed Review and Timed Practice
- Take timed 50-question sets to build pacing for the 90-minute limit
- Revisit any domain where you consistently drop below the 80% line
Practice under realistic conditions matters. The CGT practice test site lets you rehearse timed question sets so the pacing of 50 questions in 90 minutes feels familiar before the real attempt. If your practice scores sit under 80% in any one domain, treat that as your signal to slow down and reread, not to push forward.
Using Your Assigned Mentor Well
The mentor relationship is one of the more distinctive features of this certification, and many candidates underuse it. PGMS describes mentor review meetings as part of the process, so you have a built-in resource that most certification exams do not offer.
- Bring specific questions. Vague requests like "Can you quiz me?" waste the meeting. Ask about a domain you are unsure of, or a scenario you found confusing.
- Clarify the rules. Since details like calculator use and open-book policy are not publicly verified, your mentor and PGMS are the right place to get a definitive answer.
- Remember the 30-day window. Once a mentor is assigned, the testing clock starts. Agree on a realistic exam date early in the relationship.
For a sense of how scheduling fits together, see CGT Exam Dates: Testing Windows, Deadlines & Scheduling.
What Is Not Published (and How to Plan Around It)
Honesty about the unknowns is part of good preparation. Several facts that candidates often want are simply not available in PGMS public materials, and inventing them would not help you.
| Unknown | How to Plan Around It |
|---|---|
| Domain percentage weights | Study all seven categories to a consistent standard |
| Scored versus unscored question split | Treat every question as scored |
| Exact question-format mix | Practice with varied formats; confirm details with your mentor |
| Public pass rate | Ignore unsourced numbers; judge readiness by your own timed practice scores |
| Calculator/open-book/home-proctoring specifics | Ask PGMS or your mentor before test day |
| Dated 2026 exam revision | Use the current official handbook, noting it contains 2022 annotations |
That last point deserves emphasis. The official PGMS certification handbook carries 2022 annotations and there is no dated 2026 revision. Use the handbook as your primary reference, but verify with PGMS that nothing material has changed. This is also why the "2026" in study guide titles should be read as "current as of this year's research," not as a signal of a new exam version.
Exam-Window Logistics
Because the exam is online and proctored, practical readiness is part of passing. A technical or setup problem is the kind of thing that costs points through stress even when your knowledge is fine.
- Confirm your proctoring arrangement and any equipment or environment requirements with PGMS ahead of time.
- Do a timed run-through at the same hour of day you plan to test.
- Budget your 90 minutes: a first pass answering everything you know, then a second pass on flagged items, if the platform allows going back (verify this beforehand).
- Keep the retest option in perspective: at $50 it is far cheaper than the initial attempt, but it is still avoidable with solid preparation.
After You Pass: Careers and Renewal
The CGT is aimed at working grounds technicians, so the people who tend to value it are employers who maintain landscapes at scale: colleges and universities, municipal parks departments, corporate campuses, healthcare facilities, athletic complexes, and commercial landscape contractors. Whether the credential moves the needle on pay or promotion depends heavily on your employer and region. For realistic expectations, read CGT Salary Guide: Complete Earnings Analysis, browse CGT Jobs, and weigh the tradeoffs in Is the CGT Certification Worth It?
Keeping the credential active
Certification is valid for five years. To renew, you need 35 CEUs, with at least 80% of them PGMS-approved. The renewal fee is $100, reduced by $20 for each year of PGMS membership. Planning CEUs from the start of your five-year cycle, rather than scrambling in year five, keeps renewal painless and keeps your knowledge fresh in all seven content areas.
Frequently Asked Questions
The exam has 50 questions and a 90-minute time limit. PGMS does not publish how many of those are scored versus unscored, so treat every question as if it counts.
The passing threshold is 80%. On a 50-question exam, that leaves very little room for missed questions, which is why balanced preparation across all seven categories matters.
PGMS does not publish percentage weights for any of the seven categories, and no category is verified as the highest-weighted. Study all seven to a consistent standard and put extra time into whichever one you score lowest on in timed practice.
A retest costs $50. The initial fee is $150 for PGMS members, $250 for non-members, or $350 to join PGMS and apply together.
You are expected to test within 30 days of mentor assignment and to complete the full process within one year. Finish your core content review before the assignment starts the 30-day clock.
Preparing for the Certified Grounds Technician exam comes down to meeting the documented requirements, covering all seven content categories without gaps, and using your mentor and timed practice to confirm you can clear the 80% threshold. For a deeper look at the category breakdown, revisit the full guide to all 7 content areas, and when you are ready to test your readiness, head to the CGT practice exams.