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Horticulture Assistant
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Greentree Foundation
Manhasset, NY (In Person)
$57,200 Salary, Full-Time
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Job Description
Job Title:
Horticulture Assistant Reports to:Head of Horticulture FLSA Status:
Non-Exempt Date:
Effective 09/01/2026 Position Summary The Horticulture Assistant supports the Horticulture Manager with day-to-day horticultural activities across a 400+ acre property, performs skilled horticultural work, helps coordinate daily priorities, and assumes certain responsibilities in the absence of the Horticulture Manager. Essential Job Responsibilities- Assists in planning and designing annual and perennial flower beds.
- Assists with the production of bedding and potted plants in the growing operation.
- Maintains plants in the Main House, Whitney Center, Administration Office, and other interior spaces.
- Maintains the Exotic Garden, Display Meadow and the Lily Pond in the Walled Garden.
- Maintains the composting program.
- Maintains the bamboo courtyard at the Whitney Center.
- Performs pruning, mulching, weeding, fertilizing, watering, and other horticultural duties under the direction of the Horticulture Manager.
- Ability to water effectively by hand and/or manage basic irrigation tasks (monitoring, simple adjustments, and troubleshooting leaks/clogs).
- Performs special projects or related horticultural duties as required. Knowledge/Skills/Abilities Required
- Skilled in digging, planting, transplanting, staking, and seasonal bed change-outs
- Strong pruning skills for shrubs and perennials.
- Hands-on knowledge of soil preparation, mulching, compost use, and basic fertilization practices.
- Experience with greenhouse/growing tasks as needed.
- Ability to safely operate and maintain common landscape tools including lawn mowers, sheers, sharpeners, shovels, spades, clippers and pruning equipment.
- High attention to detail and presentation standards.
- Ability to prioritize work, meet deadlines, and produce quality results on time.
- Excellent organizational skills.
- Ability to work with all levels within the organization while maintaining professionalism and discretion. Working Conditions
- Must be able to stand, walk, kneel, crouch, and bend for extended periods of time.
- Must be able to lift and carry up to 50 pounds and move materials such as soil, mulch, plants, containers, and tools.
- Work may require repetitive motions and use of hand tools and power equipment, including power washers.
- Work may occur inside buildings with stairs, requiring the ability to safely navigate stairways as needed.
- Work safely in varying weather conditions (heat, cold, rain) and around uneven terrain.
- Wear appropriate personal protective equipment (PPE) as needed and follow all safety procedures. Work Environment
- Office and outside environment, where the employee could be exposed to fumes, airborne particles, moving mechanical parts and vibrations.
- Could be exposed to extreme working conditions and loud noise levels and environments.
- Regular work in formal gardens, lawns, paths, and specialty areas (e.g., meadow, pond/walled garden) and periodic work in greenhouses and storage areas.
- Routine work inside buildings requires care around finished interiors, furnishings, and high-visibility spaces.
- Work demands attention to detail and cleanliness. Minimum Qualifications
- Three years of experience in a horticultural position; some education a plus.
- Valid Driver's License.