Greenhouse Grower

Company: Great Lakes Greenhouses Inc.

Location: Leamington, Ontario

Job Type: Full time, Permanent

Work Location: In Person

Compensation: Salary to be reviewed and negotiated based on the candidate's experience, qualifications, and technical expertise.

Job Overview

Great Lakes Greenhouses Inc. is seeking a knowledgeable, motivated, and experienced Greenhouse Grower to join our team in Leamington, Ontario.

Reporting to the Master Grower, the successful candidate will play a key role in managing greenhouse crop production, optimizing growing conditions, and maintaining high standards of plant health, quality, and productivity.

The ideal candidate will possess a strong understanding of commercial greenhouse operations, plant nutrition, irrigation management, environmental controls, and crop development. This position requires a hands-on approach, strong problem-solving abilities, attention to detail, and the ability to collaborate effectively with supervisors and greenhouse personnel.

Key Responsibilities

Crop Management & Plant Health

- Monitor and manage daily crop development to ensure optimal plant growth, health, quality, and productivity.
- Evaluate crop performance throughout all growth stages and recommend appropriate adjustments to growing strategies.
- Identify signs of plant stress, nutrient deficiencies, pests, and diseases, and assist in implementing corrective measures.
- Coordinate with the Master Grower and greenhouse supervisors to ensure crop maintenance activities, including planting, pruning, harvesting, and crop cleaning, are completed according to production schedules.
- Support the implementation of integrated pest management (IPM) practices and crop health programs.

Irrigation & Plant Nutrition

- Monitor and manage irrigation systems and watering strategies to meet crop requirements.
- Evaluate irrigation schedules, nutrient delivery, and substrate moisture levels to promote optimal plant development.
- Collect, assess, and interpret water and nutrient solution samples, including pH and electrical conductivity (EC) measurements.
- Monitor plant nutritional requirements throughout different stages of crop growth.
- Assist in adjusting fertigation and irrigation programs based on crop conditions and environmental factors.

Greenhouse Climate & Environmental Controls

- Monitor greenhouse environmental conditions, including temperature, humidity, ventilation, light, and other factors affecting crop development.
- Assist in adjusting environmental control systems to maintain optimal growing conditions.




- Identify environmental irregularities and communicate operational or equipment concerns promptly.
- Collaborate with maintenance and technical personnel to ensure greenhouse systems operate efficiently.

Operations, Monitoring & Reporting

- Conduct regular greenhouse inspections to evaluate crop conditions and identify potential production concerns.
- Maintain accurate records of crop performance, irrigation strategies, nutritional measurements, and environmental conditions.
- Analyze growing data and assist in implementing improvements to crop quality, efficiency, and productivity.
- Communicate crop priorities and production concerns to the Master Grower and relevant supervisors.
- Support greenhouse sanitation, food safety, biosecurity, and workplace health and safety procedures.
- Assist with the continuous improvement of greenhouse growing practices and resource efficiency.

Teamwork & Leadership

- Work closely with the Master Grower, other growers, greenhouse supervisors, and production teams.
- Provide technical guidance and practical support to greenhouse personnel as needed.
- Communicate growing requirements and operational priorities clearly and professionally.
- Demonstrate leadership, accountability, and sound judgment in daily operations.
- Promote teamwork and effective communication in a multicultural and multilingual workplace.

Qualifications & Requirements

- Diploma or degree in Horticulture, Agriculture, Plant Science, or a related field is preferred. Equivalent practical greenhouse experience will be considered.
- Previous experience in commercial greenhouse crop production is strongly preferred.
- Sound knowledge of plant physiology, crop development, irrigation, fertigation, and plant nutrition.
- Understanding of greenhouse climate control systems and environmental management.
- Ability to interpret water analysis results, nutritional measurements, and crop performance data.
- Knowledge of pest and disease identification and integrated pest management practices.
- Strong analytical, organizational, and problem-solving skills.
- Ability to work independently, prioritize responsibilities, and meet production deadlines.




- Strong interpersonal and communication skills, with the ability to work effectively in a diverse team environment.
- Proficiency in Microsoft Office, particularly Excel, is an asset.
- Experience with computerized greenhouse climate and irrigation control systems is an asset.
- Ability to work in a fast-paced agricultural workplace and adapt to changing operational requirements.
- Willingness to work flexible and extended hours during peak production periods.

Work Environment & Schedule

- Full-time, permanent position in a commercial greenhouse environment.
- Approximately 40–50 hours per week, depending on operational and seasonal requirements.
- Combination of greenhouse floor activities, crop inspections, and office-based monitoring and reporting.
- Regular walking, standing, and movement throughout greenhouse production areas.
- Exposure to typical greenhouse conditions, including warm temperatures and high humidity.
- Occasional physical tasks, including handling equipment, tools, and agricultural supplies.
- Flexibility to respond to crop management needs and changing operational priorities.

Compensation & Benefits

- Salary will be reviewed and negotiated based on the successful candidate's relevant experience, qualifications, and demonstrated expertise in commercial greenhouse production.
- Extended health care benefits.
- Dental care benefits.
- Opportunities for professional development and career growth.
- Collaborative and team-oriented working environment.

Why Join Great Lakes Greenhouses?

At Outstanding Lakes Greenhouses, we are committed to producing high-quality greenhouse crops through effective growing practices, teamwork, and continuous improvement.

As a Greenhouse Grower, you will have the opportunity to apply your technical knowledge, contribute to important production decisions, and work alongside experienced agricultural professionals in a dynamic commercial greenhouse operation.

We are looking for a dedicated individual who takes pride in crop performance, values continuous learning, and is committed to maintaining high standards of greenhouse production.

Great Lakes Greenhouses Inc. is an equal opportunity employer. We welcome applications from qualified candidates and are committed to providing an inclusive and respectful workplace. Accommodations are available throughout the recruitment process upon request.

Pay: $17.95-$31.44 per hour

Expected hours: 40.0 – 60.0 per week

Benefits:

- Dental care
- Extended health care
- On-site parking

Work Location: In person

📌 Greenhouse Grower (Leamington)
🏢 Great Lakes Greenhouses
📍 Leamington