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Quality First…

A priority at Lambert Peat Moss

Lambert Laboratory

Quality has always been a priority at Lambert, that’s why the company owns a complete quality control laboratory.


The laboratory staff developed standards and procedures to make sure that every cubic foot of product that leaves our yard complies with our standards. Quality control procedures are also developed regularly to increase the quality of our products. Procedures can be divided into 3 areas: chemical, physical and packaging. To comply with chemical standards, our products are sampled and analyzed for pH, EC and S.M.E. analysis. To assure that physical standards are respected, we analyze particle size distribution, porosity and moisture content. Also we regularly measure the yield and the firmness of our bags. Finally we run random greenhouse tests in order to evaluate our products’ performances. Therefore, a product that does not conform completely to one or the other of our tested parameters stay in our yard.

Research and Development

Innovation and improvement play an important role in Lambert laboratories. In order to be able to offer our valued customers the products they deserve, Lambert is constantly working on its processes to condition, harvest and manufacture its sphagnum peat moss. Agronomists and engineers work together to come up with ideas and innovations that will bring our products one step closer to perfection. Whether it is to improve, create a new product or adapt an existing product, the Lambert staff runs different greenhouse trials to achieve its ultimate goal which to get the best for our customers.

Technical Assistance

Our technical staff made up of experienced agronomists and soil technicians is always ready to help our customers with any questions they may have. Whether it is about peat moss or on how to use our different products. At Lambert, we stand behind our products!

Canadian Peat Moss and the Environment

Less than 0.02% of Canadian bogs are utilized for horticultural purposes, providing literally thousands of years of harvestable peat (approximately 29,000 years.) Canadian Sphagnum Peat Moss is regenerating more than 70 times faster than the current harvests. Several environmental agencies oversee all aspects of the peat bogs to insure a safe and sustainable ecosystem. Canadians are proud to share this sustainable resource to improve your soil and provide soilless media.

Lambert Peat Moss is committed to and practices sustainable peatland management and is a member of the Canadian Sphagnum Peat Moss Association. Their members have adopted a Preservation and Reclamation Policy that sets out the procedures for opening, harvesting and closing a bog.

Highlights of that policy to which Lambert Peat Moss adheres

Before harvesting

  • Reduce impact on environment
  • Record flora and fauna
  • Cooperate with environmental groups
  • Choose bogs for reserves

During harvesting

  • Minimize acreage
  • Leave buffer zone
  • Leave layer of peat moss
  • Design drainage so water can be restored

Post harvesting

  • Restore spent areas to peatlands
  • Reclaime to forestry
  • Reclaime to functioning wetland and/or wildlife sanctuary
  • Reclaime to berry or agricultural crop

Sphagnum peat moss and its specifications

Lambert Peat Moss takes great pride in evaluating its various peat bogs and identifying the best quality of peats that are required by each market segment, horticulture, agriculture, environment and leisure.

Our peats are evaluated by the color and particle size of the peat.

The Color

Peat is classified according to its color following the descriptions used in the Von Post scale.

Von Post Scale


The Size

Particle size distribution is the other parameter that Lambert Peat Moss uses to describe its products in order to meet the needs of our customers. Particle size is often profiled as a series of sieve/screen retains or as the size of a screen opening that peat particles can pass through. We evaluate peats using both systems but we define them by the latter system for the various market segments. These are our descriptions:

Coarse Peat

Peat particles are 0 – 20 mm in size with some chunks or aggregates of peat present. Some small sticks may also be present.

Medium Peat

Peat particles are 0 – 10 mm in size with very few chunks or aggregates of peat present. Typically stick-free but some sticks may be present.

Fine Peat

Peat particles are 0 – 7 mm in size and it is free of sticks and aggregates of peat.

Super-Fine Peat

Peat particles are 0 – 3 mm in size and is free of sticks and peat aggregates.

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