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Grounds Supervisor

Job

Arboretum Foundation

Seattle, WA (In Person)

$67,500 Salary, Full-Time

Posted 3 weeks ago (Updated 1 week ago) • Actively hiring

Expires 7/30/2026

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Job Description

Overview:
Gardens are an essential part of the human experience. We visit gardens to find peace and healing, to be with friends and family and to better understand and connect with the natural world. Plants shape how we live, what we notice, and how we care for one another. Right now, we are building something extraordinary in
Seattle:
an exceptional organization that brings together the unique strengths of the Arboretum Foundation and the University of Washington Botanic Gardens. We are joining forces to become a destination garden, exemplifying leadership in scientific research, public engagement, and inclusive access. Our vision is to be a home for discovery, a force for sustainability, and a gateway to wonder. In every visit and through every season, we'll help people of all ages meaningfully connect with the living world of plants and how they shape our lives and our shared future. The 230-acre Washington Park Arboretum includes a vibrant collection of more than 40,000 plants from around the world with trails to explore, educational programs for youth to adults, and respite for all. The Grounds Supervisor works closely with the Arboretum Manager of Horticulture and is responsible for supervising horticulture staff.
ESSENTIAL DUTIES AND RESPONSIBILITIES
Leadership, Supervision, and Coordination Supervise Horticulturists and Horticulture Interns. Assist with hiring and conduct onboarding of new staff. Coordinate with Manager of Horticulture in following a horticulture work plan. Assign work, check in with each staff regularly, and conduct annual performance evaluations. Lead biweekly staff group projects. Lead horticulture staff with larger projects and plantings. Lead volunteers and volunteer groups in horticulture and restoration projects. Identify areas of the park that need attention and strategize how to get the work done, including delegating work to horticulture staff. Enforce all safety rules and regulations. Conduct training for staff, interns and volunteers in horticulture, equipment usage and maintenance, and safety topics. Serve on the Operations Committee as well as Safety Committee(s) as needed. Coordinate with Fiddleheads Preschool staff regarding work needed for classroom maintenance and projects. Coordinate with Volunteer Programs Manager regarding work for volunteer events. Coordinate work with Seattle Parks Department Senior Gardener and crew. Work alongside Horticulture staff in completing horticulture related tasks. Equipment and Tool Maintenance
  • Operate large equipment such as a Tractor, Bobcat, Dingo, and wood chipper.
Coordinate routine maintenance on utility vehicle fleet and specialized equipment. Research and order supplies and equipment needed for operations in coordination with Manager of Horticulture. Keep records of equipment maintenance in coordination with Manager of Horticulture. Direct the installation and/or repair of sprinkler systems. Communications, Record keeping, and Administrative Tasks Submit reports for collection plants, including planting reports, dead reports, and condition reports. Assist direct reports in record keeping. Maintain daily email correspondence. Provide clear oral and written communication with staff, supervisors and community partners. Help develop and follow collection management plans for addressing pest and disease issues. Occasionally lead tours of collections, gardens and operations for donors, partners and special interest groups as assigned.
MINIMUM QUALIFICATIONS
  • Physical ability to do required work and two years of college training in botany, horticulture, landscape, forestry, or allied field AND two years of experience in grounds maintenance, nursery, parks, or related activity; at least one year of which must have been lead.
  • Possession of a Washington State Public Operators Pesticide Control License (may be obtained within first 6 months of employment).
  • Equivalent education and/or experience may substitute for minimum qualifications except when there are legal requirements, such as a license, certification, and/or registration.
DESIRED EXPERIENCE
Ability to take direction, work well with others and as a leader of a team. Exceptional communication and interpersonal skills, with high emotional intelligence and a collaborative leadership style. Knowledge and practical experience with WISHA (Washington Industrial Safety & Health Act) and OSHA (Occupational Safety and Health Act) regulations. Proficiency with standard productivity software including Microsoft Office Suite. Comfort interacting with the public. Experience safely operating and maintaining horticultural equipment including utility vehicles, tractors, mowers, trimmers, and blowers. Experience operating and maintaining irrigation systems. A college degree in horticulture or related field.
CONDITIONS OF EMPLOYMENT
May be required to accept variable work shift, including occasional weekend and evening work. Possession of a valid Washington State driver's license. Ability to works at heights using approved safety precautions. Ability to lift and move heavy material Must be able to work outside in all weather conditions. Approved footwear must be provided at the employee's expense and worn on the job. Ability to work with hazardous materials such as bleach, gasoline, pesticides, and motor oil. Regular and predictable attendance is required
BENEFITS
  • Generous paid vacation, sick time and holidays
  • Medical, dental, and vision
  • Matching retirement contribution To Apply
  • Please electronically send application materials, including resume and cover letter, to
Seattle Botanic Gardens:
hr_ jobs@arboretumfoundation.org. Please, no calls or in-person visits without an appointment. Position open until filled.
Pay:
$60,000.00 - $75,000.00 per year
Benefits:
401(k) Dental insurance Employee assistance program Employee discount Flexible schedule Health insurance Life insurance Paid jury duty Paid time off Professional development assistance Safety equipment provided
Work Location:
In person