Our file # 110-2S1-4
Some companies are utilizing foreign plant material (ground peanut shells in particular) in the preparation of lawn and turf grass mixtures.
The standards for lawn and turf grass mixtures are set out in Table XIV of Schedule I to the Seeds Regulations. In
addition, sections 6 to 10, 15 to 20 and 28 set out requirements that a lawn or turf grass mixture meet.
Table XIV indicates that a Canada No. 1 Lawn Grass Mixture shall have a minimum of 85 percent pure seed by weight,
i.e., a maximum of 15 percent inert matter is allowed in such seed.
Some seed companies have determined that the standard of 15 percent inert matter means they can add inert matter to
lawn and turf grass mixtures up to this level. The addition of ground peanut shells has become a common practice for
certain companies over the past few years.
"Specialty seed" is defined in subsection 2(2) of the Seeds Regulations as
"seed of a kind or species or of a mixture of kinds or species mixed
with or attached to any fertilizer, soil, compost, peat, moss, mica, plastic, paper, cellulose or
other material and includes artificial seeds".
Lawn and turf grass mixtures that have had foreign plant material added clearly meet the definition of specialty seed
and must be correctly labelled.
Section 31 of the Seeds Regulations sets out the criteria that apply to specialty seed including the
requirement that it "shall be labelled to indicate the kind of seed and the approximate percentage or net quantity
of seed in the product".
The Forage and Turf Committee of the Canadian Seed Trade Association requested clarification of the requirements respecting lawn and turf grass mixtures, especially in regard to the addition of ground peanut shells, ground corn cobs or other plant materials not normally present in lawn and turf seed. Such material is significantly cheaper than seed and to allow this practice to continue would have the effect of forcing all companies producing lawn and turf grass mixtures to adopt this practice in order to remain competitive.
The addition of any material to seeds or a mixture of seeds results in a specialty seed that must be labelled accordingly.
Revised: 2002-03-21