Speciality Soils Inc.

Greenhouse · Nursery · Landscape

Medias tested for conformity by Soil and Plant Laboratory regulary.

Experience and expertise in this business originated in 1974.

Environment Conform to the State of Washington Organic regulations.

Contact Information

27525 Covington Way SE, Covington, WA, 98042

(253) 638-2272

Fax (253) 638-2275

1-800-270-7645 Nationwide 

- Driving directions click here   

Speciality Soils Inc. specializing in growing medias for:



Greenhouse · Nursery · Landscape

We are blenders of very high quality plant growing medias for the production of horticultural industry plants.  Our mixes are either inorganic and natural or ORGANIC and natural.  Our mixes conform to the State of Washington Organic regulations.
This includes greenhouse mixes for annuals, vegetables, hanging baskets, pot plants and perennials.
We also provide nursery mixes for indoor and outdoor growing in containers, pots or growing in the ground.
In addition we supply weed free landscape mixes for your special needs.
We offer custom blended mixes as well as standard mixes.  Our product service is unsurpassed by any one in the trade.
As a comfort to our product users we have our medias tested for conformity by Soil and Plant Laboratory on a regular basis.
Ingredients with which we make our mixes include air dried and/or gas dried Canadian Sphagnum peat moss, Pumice, Aged CONIFER Bark, Composts, aged Alder sawdust, Perlite, Vermiculite, washed sands, DiatoLIGHT (diatomaceous earth) and other special ingredients as required.
Nutrients charges for inorganic mixes are derived from potassium nitrate, calcium nitrate, treble superphosphate, ferrous sulfate, gypsum, limestone flour, dolomite lime flour, processed micro nutrients and/or slow release fertilizers.  We add a non-nutrient wetting agent to enhance maximum water penetration.
Nutrients charges for our ORGANIC mixes are derived from dried Blood Meal, steamed Bone Meal, Fish Meal, Ferrous Sulfate, Gypsum, Sulfate of Potash Magnesia, Limestone flour, Dolomite lime flour, Kelp Meal, Alfalfa Meal and Borax (we do not use Cottonseed Meal).
The experience and expertise in this business originated in 1974 as a plant growing media mixing business..


We are great to work with on projects.

We have great ideas that will benefit you.

We care about the environment a lot.

            27525 Covington Way SE, Covington, WA, 98042·  (253) 638-2272  ·  Fax (253) 638-2275  ·  1-800-270-7645 Nationwide