We Carry Indoor and Outdoor Organic Soils for Gardening



MWG Outdoor Garden Soil Menu 2023:

These are professional grade outdoor soil blends for organic growers. The following soil blends are available locally/regionally in the Spokane, WA. and CDA, ID. areas. These are our most popular gardening soils. All soils below are priced by the yard. All of the soil blends are also sold by the cubic foot for smaller projects.   

Premium Compost Blend -----------$84.00/Yard 

Our most popular mix for adding organic matter to gardens. This blend consists of a blend of organic composted forest products, Stutzman's 3-2-2 compost chicken manure, blood meal, azomite and dolomite. Designed to give your garden a real boost and lots of fresh organic matter.   

Vegan Compost Blend --------------$89.00/Yard

Vegan compost blend is for those who want a compost blend with no animal products in the mix. This compost blend includes: a blend of composed forest products, alfalfa meal, kelp meal, org soybean meal, canola meal, greensand, rock phosphate, langbeinite, azomite, and dolomite.   

Premium Organic Garden Blend ----$97.00/Yard

This is our premium grade garden soil for serious gardeners. Our premium garden blend consists of: a blend of organic composted forest products, worm castings, fish bone meal, blood meal, feather meal, alfalfa meal, rock phosphate, langbeinite, kelp and beneficial microbes.  

Premium Greenhouse Blend --------$218.00/Yard

Designed to run in outdoor pots, greenhouses or where good drainage but proper water retention is required. This blend has peat moss, composted forest products, pumice, fish bone meal, bat guano, feather meal, langbeinite, basalt rock dust, sulfate of potash, dolomite, kelp, oyster shell, azomite, and beneficial microbes.     

Tree & Shrub Blend ------------------$84.00/Yard

This blend is designed for planting trees and shrubs where low nitrogen and a touch of beneficial fungi is recommended. The ingredients include: composted forest products, aged bark super fines, fish bone meal, soybean meal, langbeinite, feather meal, rock phosphate, humic acid, basalt rock dust, kelp and endo/ecto mycorrizal fungi.          

Nursery Blend ------------------------$166.00/Yard

This long term outdoor potting soil is blended with aged bark in the mix to help maintain soil structure for multiple seasons. It is also made to work with fertigation systems. This soil consists of: Peat moss, composted forest products, aged medium bark, pumice, oyster shell, basalt rock dust and beneficial microbes. 


Permaculture Blends 2023: 

Our Fish compost top dress and coots blend soil are designed to work with outdoor permaculture gardening. The fish compost top dress is designed to be used as an all in one top dress/fertilizer. Application rates for a top dress is 1"-2" around the root ball of plants to be fertilized once every 30 days during the growing season. Coots Blend soil is designed to be a great base soil for starting or adding to a permaculture garden.  

Fish Compost Top Dress -------------$217.00/Yard

A top dress for people that want a fish based nutrients mixed into a rich blend of Oly Mountain fish compost, worm castings, bio char and composted forest products for superior vegetative growth while adding new organic matter into your soil. This blend also includes: fish emulsion, crustacean meal, fish meal, kelp, fish bone meal, alfalfa meal, oyster shell, langbeinite, humic acid, bokashi, rock phosphate, basalt rock dust, azomite, dolomite and sulfate of potash.   

Coots Blend Soil-----------------------$265.00/Yard 

Coots blend is an outdoor soil that is perfect for starting a new permaculture garden or for adding material to an existing garden. This soil includes: peat moss, composted forest products, worm castings, bio char, pumice, blood meal, crustacean meal, kelp meal, bone meal, feather meal, alfalfa meal, neem meal, humic acid, malted barley, rock phosphate,  glacier rock dust, basalt rock dust, azomite, dolomite.     


MWG Indoor Soil Menu 2023:

These soil blends are professional grade soils designed for indoor grow operations. We build all of our indoor soils when you order them, because we inoculate all of our indoor soil blends with active beneficial microbes. We want you to receive fresh soils with high microbe populations of active beneficial microbes Quantities of less than one yard are available. All soil blends are also sold by the cubic foot for smaller projects.    

Organic Seedling Blend ------------$296.00/Yard 

Coconut coir, peat moss and soil grade perlite based seedling tray blend with worm castings and a light dose of nutrients perfect for starting your plants. The nutrients include: soybean meal, fish bone meal, kelp, alfalfa meal, oyster shell, azomite, rock phosphate, basalt rock dust, lime, dolomite, beneficial microbes.   

Peat Soil Less Media ----------------$265.00/Yard 

A basic peat based soil less media consisting of: peat moss, coir, perlite, pumice, worm castings, azomite, basalt rock dust, molasses, dolomite and beneficial microbes.  

Just Coir Soil Less Media -----------$387.00/Yard 

This soil less media is a coco coir based soil less media where the highest porosity is required. The blend includes: coco coir, perlite, pumice, azomite, basalt rock dust, molasses,  dolomite and beneficial microbes.   

Organic Coco Blend -----------------$327.00/Yard 

This is a indoor high porosity high coconut coir based soil blend. This is a great soil for growers transitioning out of a soil less media into a light soil media. This blend has a light load of nutrients allowing the grower to determine their feeding schedule. Organic Coco blend includes: coconut coir, perlite, peat moss, worm castings, bat guano, fish bone meal, kelp meal, neem meal, oyster shell, bokashi, basalt rock dust, rock phosphate, azomite,  dolomite and beneficial microbes.   

Ocean Blend Soil ---------------------$295.00/Yard

An indoor peat based soil blend with the best amendments that the ocean has to offer. This is a full strength soil should fully feed your plants for 3-4 weeks and will give you vigorous growth throughout your plants life cycle. this blend includes: peat moss, coco coir, perlite, Oly Mountain fish compost, composted forest products, worm castings, crustacean meal, fish bone meal, fish meal, kelp meal, oyster shell, neem meal, humic acid, rock phosphate, basalt rock dust, azomite, dolomite, lime, bokashi and beneficial microbes. 

Sub-Cool Super Soil ------------------$348.00/Yard 

i502-white-background.jpgSpecifically made for the cannabis industry, This is our spin on the legendary Sub-Cool Soil recipe. Sub cool is a very highly charged indoor soil. It is designed to have enough nutrients to carry you through the end of the flowering stage without having to feed your plants. This recipe includes: peat moss, coir, composted forest products, worm castings, bio-char, pumice, perlite, blood meal, feather meal, neem meal, kelp meal, alfalfa meal, fish bone meal, bone meal, seabird guano, azomite, basalt rock dust, humic acid, dolomite, lime, bokashi, molasses and beneficial microbes. WARNING:  This is a very hot organic blend that can burn plants if used improperly. 

We assure quality of all of our soil blends by testing our soils to insure optimal performance. 


Soil Delivery Available: Need help getting your gardening materials delivered contact us for a quote. We deliver locally within the Spokane WA./CDA ID. region. We have a dump truck and dump trailer and can haul up to 10 yards per delivery. Local deliveries are charged $2.00/mile round trip from our location with a $25.00 minimum delivery fee. For larger orders we have the ability to ship LTL commercially. Please call 509-928-3995 to get a quote.   



Marlé Worm Growers mixes custom soil blends for organic growers all over the Northwest. We can typically blend soil cheaper than you can buy all of the ingredients and mix it yourself, saving you time and money. Contact us either come by our store or call 509-928-3995 and request a bid for your custom blend. Commercial Growers, please contact us for pricing and availability. Confidentiality Agreements are available where applicable.