Merrett Horticulture

Merrett Horticulture

Specialist Horticulture – Designs – Living Walls

Our Goal

The continued promotion and practice of horticultural excellence.

Merrett Horticulture is led by Joseph Merrett  CHT. CLM.

Certified Horticulturist and Landscape Designer


  • 3 year Diploma in Horticulture (Design)
  • CHT. Certified Horticulture Technician
    (Ministry of Ontario)
  • CLM. Certified Landscape Manager
    (Canadian Nursery & Landscape Association)
  • IPM. Integrated Pest Management


  • 20 years professional gardening & landscape design
  • Gardener for the National Trust of England
  • Healthcare Horticulturist for Mental Health Centre
  • Supervisor of Horticulture for two major Municipalities
  • Owner of Gardening and Design business
  • Guest lecturing for Canadian Nursery Landscape Association
  • Guest lecturing for Horticulture Colleges and Garden Society’s
  • Consultant and Advisor for major landscape companies and clients

Landscaping Design

We work with you to custom design your dream garden

Design 1
Design 2
Design 3

Design 4
Design 5
Design 6

Designs completed by Merrett Horticulture

Living Walls

Joseph Merrett Dip Hort. CHT. CLM.
Living Wall Design and Installation based out of Ontario, Canada

View Our Living Wall Products

Air Purification

Studies have proven that plants remove toxins from the air (Volatile Organic Compounds) such as formaldehyde (present in rugs, vinyl, cigarette smoke and grocery bags), benzene and trichloroethylene (both found in man-made fibers, inks, solvents and paint).

Air Hydration

Studies at the Agricultural University if Norway show that plants indoors decrease incidents of dry skin, colds, sore throats and dry coughs.

Improved Health

Adding plants to hospital rooms speeds recovery rates of surgical patients, according to researchers at Kansas State University. Compared to patients in rooms without plants, patients in rooms with plants request less pain medication, have lower heart rates and blood pressure, experience less fatigue and anxiety/stress, and are released from the hospital sooner.The Dutch Product Board for Horticulture commissioned a workplace study that discovered that adding plants to office settings decreases fatigue, colds, headaches, coughs, sore throats and flu-like symptoms. In another study by the Agricultural University of Norway, sickness rates fell by more than 60 percent in offices with plants.

Increased Oxygen

Plants absorb carbon dioxide and release oxygen.

Sharpened Focus

A study at The Royal College of Agriculture in Circencester, England, found that students demonstrate 70 percent greater attentiveness when they’re taught in rooms containing plants. In the same study, attendance was also higher for lectures given in classrooms with plants.

Reduced Background Noise

Enabling a more comfortable environment for all to enjoy.

Images in this section from


Please feel free to contact me with questions or to schedule a consultation

Joseph Merrett

Hamilton, Ontario


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