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Supervisory Horticulturist - (Director of Horticulture)

Legislative Branch
Architect of the Capitol

Summary

The Architect of the Capitol (AOC) has a leadership position as Director of Horticulture within Capitol Grounds and Arboretum (CGA); Horticulture Division. The Supervisory Horticulturist primary purpose of the position is to provide leadership and long-term planning for the Gardening Division, including planning and managing long term human capital, budget, customer experience, curatorial and other critical processes.

Overview

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Accepting applications
Posted this week · Apply by 07/06/26
Due by 11:59 p.m. ET on July 6, 2026
Location
Work site options
Telework eligible
Yes—Telework as directed by agency policy.
Remote job
No
Relocation expenses reimbursed
No
Salary
$143,913 - $187,093 per year
Pay scale & grade
GS 14
Promotion potential
14
Pay scale and grade determines the salary of the job.
Work schedule
Full-time - This is an Excepted Service position and does not require or confer Civil Service Competitive Status
Travel Required
Not required
Appointment type
Permanent - Permanent, Full Time
Occupations and job series
Supervisory status
Yes
Federal service type
This job is in the Excepted Service
Drug test
Yes
Security clearance
Not Required
Position sensitivity and risk
Non-sensitive (NS)/Low Risk
Jobs require a background check and some require a security clearance. The type depends on the job.
Background check type
Announcement number
CGA-2026-231
Control number
871535100

This job is open to

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Clarification from the agency

See Requirements section of this announcement for information on who may apply. Note: Please be advised that federal retired annuitant candidates may only be considered as a temporary employee if the role can be filled in that capacity.

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Duties

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Supervisory and Managerial Responsibilities

  • Supervises the staff of the division through subordinate supervisors. Performs administrative and technical supervisory functions for subordinates. Assigns duties and evaluates performance. Manages the organizational unit’s budget and workload. Develops performance requirements for subordinates and ensures a mutual understanding of the performance standards.
  • Develops work improvement plans for subordinates. Provides advice and counsel to subordinates on administrative and technical work matters. 

Garden and Grounds Leadership

  • Provides professional leadership of subordinate supervisors and team leaders of Urban Forester, Plant Health Care Specialist, Turfgrass Management Specialists, Certified Arborists, Horticulturists, Gardeners, and other plant science specialists. Outlines overall responsibilities, makes assignments, sets priorities and provides professional, technical and administrative advice and assistance as required. Plans organizational structure and staffing needs, determines types of jobs required and assigns duties to key subordinate positions. 
  • Directs the work of  the Plant Health Care Specialist to ensure optimum health of the living collection. Responsible to mitigate plant pests throughout our urban landscape and collaborates with federal agencies to monitor exotic and potentially devastating invasive species. 
  • Oversees the development and execution of the CGA arboretum program including specimens of historical significance. Responsible for directing work of the Urban Forester and coordinating work prioritization and work execution of over 4,800 trees to maintain health and safety. 
  • Directs the work of the Turfgrass Management Specialists and the turf team. Prioritizes work and plans budget and resource needs. Coordinates maintenance tasks between the Turfgrass Management Specialists and the Supervisory Horticulturist. 
  • Analyzes long-range needs, unusual problems or unusual questions affecting the operations and maintenance of the Capitol gardens and grounds. 

Contract Administration

  • Advises the Deputy Executive Director on the use of outside contractors when that is the most reasonable course of action to accomplish specific aspects of a job or an entire work project that cannot be performed by AOC staff.  
  • Serves as a Contracting Officer’s Technical Representative (COTR) for designated contracts. 
  • Evaluates employee and contractor performance in meeting operational requirements, contract requirements and core processes. 
  • Performs technical oversight and support to contract workers and others assigned to projects by ensuring that plans, blueprints, materials and other tools required are available and by obtaining needed information and decisions from the supervisory engineer, landscape architect or other technical staff. 

Performs other related duties as assigned.

Maintains a DC pesticide applicator license in categories III – A, B & C, (3A) exterior ornamental plants, (3B) interior plant-scapes and/or (3C) turf grass, dependent upon the pesticides used.

**This position is considered "essential". Reporting to work during emergencies and inclement weather situations is required.****

Requirements

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Conditions of employment

  • You must meet the definition of specialized experience.
  • You must meet education requirements at the time of application.
  • Maintains a DC pesticide license in categories III – A, B & C.

To be employed by the Architect of the Capitol in a paid position, an individual must meet one of the categories below:

  • A citizen of the United States;
  • A person who is lawfully admitted for permanent residence and is seeking citizenship as outlined in 8 U.S.C. 1324b(a)(3)(B);
  • A person who is admitted as a refugee under 8 U.S.C. 1157 or is granted asylum under 8 U.S.C. 1158 and has filed a declaration of intention to become a lawful permanent resident and then a citizen when eligible;
  • A person who owes allegiance to the United States (nationals of American Samoa, Swains Island, and the Northern Mariana Islands, and nationals who meet other requirements described in 8 U.S.C. 1408); or
  • A person who is currently an officer or employee of the Government of the United States.

Qualifications

You must meet the United States Office of Personnel Management's (OPM) qualification requirements (including specialized experience and/or educational requirements) for the advertised position. You must meet all eligibility and qualifications requirements by the closing date of the job announcement. Additional information on the qualification requirements is outlined in the OPM Qualifications Standards Handbook of General Schedule Positions. It is available for your review on the OPM web site at http://www.opm.gov/qualifications.

Specialized Experience is experience that has equipped the applicant with the particular knowledge, skills, and abilities to perform successfully the duties of the position and is typically in or related to the work of the position to be filled. To be creditable, an applicant's one full year of specialized experience must have been equivalent to at least the next lower grade level.

To qualify at the GS-14 level, your resume must clearly demonstrate that you have one full year (52 weeks) of specialized experience comparable in difficulty and responsibility to at least the GS-13 level in the federal service. Examples of qualifying experience include the following types of tasks performed on a regular and recurring basis:

  • Performing administrative and technical supervision of subordinate staff in the performance of gardening and grounds maintenance and repair work to include staffing levels, performance management, training and development and organization and position management;
  • Providing guidance and managing maintenance programs for a public gardens that include seasonal horticultural displays and landscape preservations;
  • Performing gardening work, including estimating material and labor costs for a variety of landscape projects, directing actual work operations and maintaining contact with the organization funding the project; and
  • Serving as a Contracting Officer's Technical Representative (COTR) or equivalent.

Education

In addition to meeting the specialized experience requirements, applicants must have the following:

Degree: Horticulture; or a related discipline of basic plant science that included at least 30 semester hours in the basic plant sciences, of which at least 16 semester hours were in horticultural subjects such as those dealing with the breeding, care, management, production, and post-harvest handling of horticultural crops.

--OR--

Combination of education and experience: courses equivalent to a major in horticulture or a related discipline of basic plant science that included course work as shown in A above, plus appropriate experience or additional education.

Courses in botany, plant physiology, plant taxonomy, plant pathology, genetics, agronomy, horticulture, and similar courses may be used to meet the 30-semester-hour requirement in basic plant sciences.

The 16-semester-hour requirement in horticulture includes course work in basic horticulture and course work related to any of the recognized subject-matter fields of horticulture, i.e., fruits, vegetables, ornamentals, nursery work, seed production, or course work in related areas of science, such as micro-biology, entomology, plant pathology, plant physiology, or genetics that is directly related to horticultural work.

Special Instructions for Foreign Education

Education completed outside of the United States must be deemed equivalent to that gained in conventional/accredited U.S. education programs to be acceptable for Federal employment.

Qualifying education from colleges and universities in foreign countries must be evaluated in terms of equivalency to that acquired in U.S. colleges and universities. Applicants educated in whole or in part of foreign countries must submit sufficient evidence, including transcripts, to an accredited private organization for an equivalency evaluation of course work and degree.

You must provide a copy of the letter containing the results of the equivalency evaluation with a course by course listing if selected.

Additional information

Welcome Veterans. The Veterans Employment Opportunities Act of 1998 (VEOA) gives veterans' preference rights in the legislative branch to certain veterans as applied by the Congressional Accountability Act. Veterans' preference is applied on this vacancy announcement. If you are a veteran and have been separated under honorable conditions, you must submit a copy of your DD-214 or other proof of eligibility; SF-15, if applicable; and Department of Veterans Affairs documentation of disability, if applicable. For more information, please visit OPM vet guide

If you are a male applicant born after December 31, 1959, you must certify that you have registered with the Selective Service System.  If you are exempt from registration under Selective Service Law, you must provide appropriate proof of exemption. Please visit the Selective Service System website for more information.

DRUG TESTING: The Architect of the Capitol (AOC) is a Drug Free Workplace. As part of the AOC’s suitability assessment, a candidate tentatively selected for a position is required to submit to screening for illegal drug use. Satisfactory completion of a drug test is a condition of employment with the Agency. A candidate must test negative prior to being eligible for appointment into a position. We will schedule, provide, and cover the cost for the drug test.
 
The selectee(s) under the vacancy announcement for this position is subject to a criminal record check by the U.S. Capitol Police and satisfactory adjudication to be eligible for employment at the Architect of the Capitol.
 
The Architect of the Capitol is an E-VERIFY Participant. E-VERIFY is an Internet-based system that compares information from an employee's Form I-9, Employment Eligibility Verification, to data from U.S. Department of Homeland Security (DHS) and Social Security Administration records to confirm employment authorization in the United States. If you are selected for this position, the documentation that you present for purposes of completing the DHS Form I-9 will be verified through the DHS "E-VERIFY" electronic system. For more information on E-Verify, please visit http://www.dhs.gov/files/programs/gc_1185221678150.shtm

The Architect of the Capitol is an Equal Opportunity Employer and prohibits discrimination on the basis of race, color, sex, religion, age, national origin, genetic information and/or disability.

This agency provides reasonable accommodation to applicants with disabilities. If you need a reasonable accommodation for any part of the application and hiring process, please notify the agency. The decision on granting reasonable accommodation will be on a case-by-case basis.
 
Moving expenses are not authorized.
 
Relocation expenses are not authorized.
 
Probationary PeriodSelectee(s) is subject to the completion of a one-year trial/probationary period, regardless of whether or not a trial/probationary period has been completed previously with the Architect of the Capitol or another Federal agency.

This vacancy announcement may be used to fill additional vacancies in any of the jurisdictions of the Architect of the Capitol.

All application materials become the property of the Architect of the Capitol.

Candidates should be committed to improving the efficiency of the Federal government, passionate about the ideals of our American republic, and committed to upholding the rule of law and the United States Constitution.

How you will be evaluated

You will be evaluated for this job based on how well you meet the qualifications above.

Review your resume and responses carefully. Your eligibility for consideration and qualifications for the position will be determined based upon a review of your detailed resume and your responses to job specific self-assessment questions.  

Your resume will be evaluated based on evidence of your ability to demonstrate the knowledge, skills, and abilities (KSAs) for this position, possession of any specialized experience, and how well your background and experience relates to the self-assessment questions in the job announcement. 

The self-assessment questions relate to the following knowledge, skills, abilities, and competencies:

Horticultural Sciences - Knowledge of the concepts, principles, theories, and practices of plant collections, characteristics, and nomenclature.

Contracting Management - Knowledge of various types of contracts, techniques, or requirements for contract negotiation and administration.

Landscape Management - Knowledge of the concepts, theories, and practices used in the planning, designing, construction, and adaptation of outdoor features, recreation planning, requirements, aesthetic value, and compatibility with other plant developments and resources.

Ability to organize and direct horticultural projects, set priorities and deadlines to meet established goals and objectives.

Your responses to the self assessment questions serve as the basis for your initial rating.  You will receive a numerical score based on your responses to these questions.  Next, your responses will be evaluated by a Human Resources Specialist and/or a subject matter expert against the information provided in your resume and optional cover letter. 

Your resume must support your answers to the self assessment questions.  Falsifying your background, education, and/or experience is cause for not hiring you or disqualification for further consideration. 

Please note that a complete application is required for consideration. (Please review the “Required Documents” section of this job announcement to see what must be included in a complete application).


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Architect of the Capitol

The mission of the Architect of the Capitol (AOC) is to serve Congress and the Supreme Court, preserve America's Capitol and inspire memorable experiences. The AOC is responsible for the maintenance, operation, development and preservation of 18.4 million square feet of buildings and more than 570 acres of land throughout Capitol Hill. The AOC provides a welcoming and educational environment for millions of visitors through the U.S. Capitol Visitor Center and the US Botanic Garden. Learn more at https://www.aoc.gov/careers.  The AOC prides itself on its Core Values of Respect, Integrity, Safety, and Empowerment (RISE).

Agency contact information

Clarissa Anderson
Phone
202-215-4316
Fax
202-226-9755
Email
clarissa.anderson@aoc.gov
Address
Architect of the Capitol
2nd and D Street, S.W.
Washington, District of Columbia 20515
United States

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