Greenhouse Manager

Overview

We are seeking a hard-working, committed, talented individual motivated by a career interest in sustainable agriculture to join our 2025 team as a Greenhouse Manager. Two or more seasons of previous farming experience is required.

Siena Farms’ Greenhouse Manager is a core member of the year-round crop production management team for our 50-acre diversified produce farm. They, like all of our employees, are held to high standards for respect, kindness, organization, communication, positive attitude, work quality, work ethic, work pace, and work schedule. Of all of these values, respect and kindness for coworkers is the top priority, as everything else follows from that.

Primary responsibilities of our Greenhouse Manager include but are not limited to the planning, management, and execution of the following.

Greenhouse Management

Plan greenhouse and high tunnel crops in alignment with the overall farm crop plan, accounting for holidays, seasonal climate variations, and crop rotation needs
Oversee the production of all greenhouse and high tunnel plants, managing seeding schedules, watering, transplanting, and growth stages
Supervise and provide direction to farm staff helping with work in the greenhouses, ensuring tasks are completed efficiently and with attention to crop health and quality
Apply expertise in botany, soil science, and pest and disease management to monitor and enhance crop health, growth, and sustainability, implementing effective solutions as needed
Manage greenhouse supplies, including hoses, soil, fertilizers, potting mediums, seeds, and other essential materials
Maintain and operate greenhouse equipment, ensuring safety and functionality
Continuously evaluate and improve processes to boost growth efficiency, optimize yields, and support sustainable practices
Ensure that greenhouse and high tunnel tasks are completed year-round, managing staff for weekend and holiday coverage as necessary

Secondary responsibilities of our Greenhouse Manager include but are not limited to the planning, management, and execution of the following.

Production Management

Develop, understand, and execute Siena Farms’ crop plan, managing year-round production of vegetables, fruits, herbs, and flowers
Apply various crop production methods including, but not limited to, direct seeded crops, transplanted crops, perennials, plasticulture, irrigation, etc
Cooperatively manage post-planting crop care including: row cover and plastic cover, fencing, weed management, twining, trellising, pruning, and pest management
Operate various farm machinery including tractors, tillage and planting implements, and weed and pest control equipment, as well as help maintain trucks and handheld tools for farm work

Harvest Management

Assist with harvests of field crops, mushrooms, and flowers, as well as post-harvest handling, including washing, curing, packing, and transporting produce. The production team at Siena Farms is normally needed to assist with “bulk harvests” during the season, especially in the autumn, but is not normally needed to help with regular daily harvests throughout the year.
When it comes to the harvest of greenhouse and high tunnel crops, such as winter greens and summer high tunnel crops, the Greenhouse Manager has a leading role in coordinating and training the harvest team

General Farm Management

Collaborate with other managers in the training and leading of farm crew through crop production and field work, harvest operations, and post-harvest handling activities ensuring smooth, efficient workflows
Participate in seasonal planning meetings to shape crop, staffing, equipment, and marketing plans and contribute to business development strategies
Lead farm upkeep, ensuring safety, cleanliness, equipment maintenance, and support for farm events and team-building activities

Qualifications

Two or more seasons of previous farming experience is required, including at least one season operating tractors on a farm
Familiarity with the necessary tools and equipment to perform day to day tasks around the farm
A basic understanding of how farm machinery functions, and the ability to operate the machinery safely
A basic understanding of farm machinery maintenance
The ability to lift and carry 50+ lb objects
A valid driver's license and safe driving record
Strong communication skills
Excellent attention to detail
Ability to work efficiently and both independently and collaboratively on a team

Schedule

Our Greenhouse Manager position is considered a full-time, year-round position, averaging 40 hours/week spread over 4 days per week in the “cold months” (December through March), and averaging 50 hours / week spread over 5 days in the “warm months” (April through November).

Core schedule during December through March is 7am – 5pm four weekdays per week (either M-H or T-F). Core schedule during April and May is Monday through Friday, 7am – 5pm. Core schedule June through November includes 5 days a week from 7am – 5pm, with either a “Saturday/Sunday” weekend, or a “Sunday/Monday” weekend. One paid hour of lunch break per day is allotted to all farm staff on any given work day.

Compensation

Competitive salary, generous PTO package, and fully covered health insurance benefits 90 days after start date.
Perks include a weekly veggie farm share to take home, additional access to surplus produce, plus employee discounts at Siena Farms' retail sites and family restaurants Oleana and Sofra.

Other

We do not offer on-farm housing
Reliable transportation to and from the farm in Sudbury is required.

To Apply

Please email a letter of interest and a resumé to jobs@sienafarms.com. We look forward to hearing from you!