- The Short Answer: Certified Grounds Manager
- Who Awards the Credential
- Why the Acronym Causes Confusion
- What the Title Actually Signals
- The Two-Stage Process Behind the Letters
- The Seven Exam Subjects Behind the Name
- Eligibility Tiers and Fee Mechanics
- Keeping the Title: Renewal
- Who Hires and Values the Credential
- Sequencing Your Preparation Around the Subjects
- Frequently Asked Questions
- CGM on this site means Certified Grounds Manager, a credential administered by the Professional Grounds Management Society (PGMS).
- The exam has 75 questions, runs 90 minutes, uses multiple-choice and true/false items, and requires 80% to pass.
- Earning the title also involves a separately graded PGME portfolio, not just the exam.
- Seven illustrative subjects guide preparation, from Chemical and Fertilizers to Turf grasses, but PGMS publishes no weighted blueprint.
The Short Answer: Certified Grounds Manager
On this site, CGM stands for Certified Grounds Manager. It is a professional credential for people who run landscapes, athletic fields, campuses, parks, corporate properties, and other managed outdoor spaces. The letters identify someone who has demonstrated knowledge of grounds management through an examination and has documented real-world performance on the job.
If you landed here searching for the acronym, you may have found other meanings elsewhere. The acronym is shared by several unrelated credentials and terms in other industries. Everything in this article refers only to the grounds management certification. For a broader orientation, see our overview of what CGM is and the companion explainer on CGM meaning.
Who Awards the Credential
The Certified Grounds Manager credential is administered by the Professional Grounds Management Society (PGMS). PGMS runs the certification program, publishes the certification handbook, sets eligibility rules, and manages the renewal process. The exam itself is delivered online with an approved proctor.
That detail matters when you evaluate a study resource. Anything claiming to describe the "CGM exam" should align with PGMS materials, not with the certification programs of other organizations that happen to share the abbreviation. If a source mentions a different certifying body, different fees, or a different exam format than the ones described here, it is describing a different credential.
Why the Acronym Causes Confusion
Three letters can only carry so much meaning, and the same abbreviation turns up in unrelated fields. A search for the acronym can return results about healthcare devices, hospitality, or other professional designations that have nothing to do with turf, trees, or irrigation. Candidates occasionally pick up a pass rate, a fee, or a content outline from the wrong credential and then plan around it.
When in doubt, go to the PGMS certification page and handbook directly, and use our related explainers such as what does CGM mean and what is CGM certification as a cross-reference.
What the Title Actually Signals
The word choices inside "Certified Grounds Manager" each carry weight.
- Certified: the holder passed a standardized exam and satisfied portfolio-based review. It is not simply a course completion certificate.
- Grounds: the scope is the outdoor, living, maintained environment, including turf, ornamental plantings, trees, soils, and irrigation infrastructure.
- Manager: the credential is aimed at people who plan, budget, supervise, and make decisions, not only those who perform hands-on tasks. Supervisory experience is built into the eligibility rules.
That last point is what separates the credential from a pesticide applicator license or a basic horticulture certificate. It is a management designation, and the experience requirements reflect that.
The Two-Stage Process Behind the Letters
Many candidates assume the credential is a single exam. In reality, earning the title involves two components handled by PGMS.
Stage one: the application exam
The initial exam is online with an approved proctor. It contains 75 questions in multiple-choice and true/false format, with a 90-minute time limit. You need 80% to pass. PGMS does not publish how the questions split between scored and unscored items. The initial testing window is 30 days.
Stage two: the PGME portfolio
After the exam comes the portfolio component, referred to as PGME. It is graded separately using a rubric, and it is organized around nine portfolio categories. Those categories are portfolio categories, not exam domains, and mixing the two up is a common mistake. The portfolio is due within one year, and the process includes mentorship and submission of evidence. PGMS does not publicly disclose a pass rate for the portfolio.
Key Takeaway
Plan for both stages from the start. Passing the 75-question exam is necessary but not sufficient. Begin collecting portfolio evidence and lining up a mentor while you study, rather than treating the portfolio as an afterthought.
For a closer look at timing, see CGM exam dates, testing windows, and deadlines, and for scoring details read our guide to the CGM passing score.
The Seven Exam Subjects Behind the Name
The PGMS handbook lists seven illustrative subjects for the application exam. These are best treated as unweighted preparation headings. PGMS does not publish a dated, complete, weighted blueprint, and it does not state which subject carries the largest share of questions. Anyone quoting precise domain percentages is guessing.
Chemical and Fertilizers
Expect questions on how inputs are selected, applied, and handled responsibly in a managed landscape.
- Fertilizer selection and application logic
- Safe handling and application of chemical products
- Matching inputs to site conditions
Insects and Disease
Diagnosis and management of pests and plant health problems across turf and ornamentals.
- Recognizing common pest and disease symptoms
- Management approaches that avoid unnecessary treatment
Irrigation
Water delivery systems and the judgment needed to use water efficiently on a property.
- System components and scheduling concepts
- Diagnosing coverage and efficiency problems
Management
The business and leadership side of running grounds operations.
- Planning, budgeting, and supervising crews
- Communicating with owners and stakeholders
Soils
The foundation under every other subject on the list.
- Soil properties and how they affect plant performance
- Interpreting conditions that drive fertility and drainage decisions
Trees and Shrubs
Woody plant selection, care, and maintenance.
- Cultural practices for woody ornamentals
- Recognizing stress and decline
Turf Grasses
Species, cultural practices, and maintenance programs for managed turf.
- Species characteristics and site suitability
- Mowing, fertility, and renovation concepts
Our complete guide to the CGM exam domains goes deeper on each area, and the CGM cheat sheet condenses must-know facts for last-minute review.
Eligibility Tiers and Fee Mechanics
Because the title signals management experience, PGMS ties eligibility to a combination of education and years in the field. Candidates also need at least one year at their current facility. The qualifying combinations are:
| Education Background | Grounds Experience | Supervisory Experience |
|---|---|---|
| Relevant four-year degree | Four years | Two years |
| Two-year degree | Six years | Three years |
| No qualifying degree | Eight years | Four years |
Fees depend on PGMS membership status:
| Fee Category | Amount |
|---|---|
| PGMS member | $200 |
| Non-member | $300 |
| Join and apply together | $400 |
| Retest | $50 |
Notice how membership changes the math. A non-member pays $300, while joining and applying together costs $400, so the membership itself effectively costs $100 in that bundle. Our CGM requirements guide walks through qualification step by step, and the CGM certification cost breakdown covers the full pricing picture.
Keeping the Title: Renewal
The designation is not permanent. Certification must be renewed every three years, which requires 25 continuing education units (CEUs), with at least 80% of them PGMS-approved. The renewal fee is $75, reduced by $25 for each year you have been a PGMS member, so longtime members pay less.
Who Hires and Values the Credential
The certification is relevant wherever professionally managed outdoor space matters. Typical employers and settings include:
- Colleges, universities, and school districts with large campuses and athletic fields
- Municipal and county parks and recreation departments
- Corporate campuses, hospitals, and business parks
- Golf and country club properties, resorts, and residential communities
- Commercial landscape management firms that supervise crews across multiple client sites
In these settings the credential helps document that a supervisor has verified knowledge across soils, plant health, irrigation, and operations. It can support promotion cases and bids for management roles, though compensation varies widely by region and employer. We discuss the career side in more depth in our CGM jobs overview and in the CGM salary guide, and you can weigh the investment in is the CGM certification worth it.
Sequencing Your Preparation Around the Subjects
You do not need a generic study method here, just a sensible order. Because Soils underlies Chemical and Fertilizers, Irrigation, Turf Grasses, and Trees and Shrubs, it makes sense to start there. Here is one way to sequence a month-long window, shaped around how the subjects depend on each other.
Soils, then Chemical and Fertilizers
- Build soil fundamentals first, since fertility decisions depend on them
- Move into input selection and safe application
Turf Grasses and Irrigation
- Study species, cultural practices, and maintenance programs
- Pair them with irrigation, where water management decisions apply directly to turf
Trees and Shrubs, then Insects and Disease
- Cover woody plant care first
- Then practice diagnosing pest and disease problems across both turf and ornamentals
Management and full review
- Review planning, budgeting, and supervision topics
- Take timed practice sets to rehearse the 90-minute, 75-question format
Since the seven subjects are unweighted, spread your effort rather than gambling on one area. Our CGM study guide expands this approach, and it helps to understand how hard the CGM exam is before you commit to a timeline. The 80% threshold leaves limited room for a weak subject, so use practice questions to find gaps early. You can try a CGM practice test to check your readiness, and browse our full practice question bank for subject-by-subject drills.
One caution on exam-day logistics: the references available do not establish whether the test is open-book, nor do they confirm calculator rules, adaptive scoring, or home-testing requirements. Confirm these details with PGMS before your test date rather than relying on assumptions. Likewise, PGMS does not publicly disclose pass rates, so be skeptical of any figure you see quoted; our CGM pass rate analysis explains what can and cannot be said.
Frequently Asked Questions
CGM stands for Certified Grounds Manager, a credential administered by the Professional Grounds Management Society (PGMS). It is unrelated to other credentials and terms that share the same abbreviation.
No. It includes a 75-question, 90-minute online exam requiring 80%, followed by a separately graded PGME portfolio that involves mentorship and evidence submission.
The PGMS handbook lists seven illustrative subjects: Chemical and Fertilizers, Insects and disease, Irrigation, Management, Soils, Trees and shrubs, and Turf grasses. They are unweighted preparation headings, not a complete weighted blueprint.
The fee is $200 for PGMS members, $300 for non-members, or $400 to join and apply together. A retest costs $50.
Certification renews every three years with 25 CEUs, at least 80% of which must be PGMS-approved. The renewal fee is $75, reduced by $25 for each year of PGMS membership.