Soil Additives

Premium grade of coarse Canadian sphagnum peat moss. When mixed with soil, increases the soil's capacity to hold water and nutrients. Can be blended with perlite and vermiculite when custom soilless potting mix is desired.

BuildASoil Original Recipe! This water only mix was based on the famous Clackamas Coots recipe and it changed everything. After years of growing in this potting soil and hand making it for others, I Founded BuildASoil.com to share the soil and its...

BuildASoil brings you sulfur that you can introduce into your soil as a soil amendment. Wettable sulfur, and sulfur in general, is a tool to lower the pH levels in soil. Too much, the soil shows too much salt, and the plants suffer, so measurement and...

If you're looking to mix soil you will need a Nutrient Kit and a Mineral Kit.Get both and save with our Complete Soil Building Kit.If you're looking for Nutrients see our Nutrient Kit For Sphagnum Peat Moss Base - ClackamasCoots Style. We separate...

Our Pre-Charged Char is soaked in a mixture of Ferti Nitro soy aminos at a rate of 1/2lb per yard and rootwise microbe complete at 1oz per yard.Bio Char varies in size based on what is available due to high demand.Sizes vary from fine, small...

 MACRO & TRACE MINERAL NUTRIENTS. Sea-90’s exclusive mineral and trace element profile complements and balances traditional NPK fertilizers with the important nutrients they often lack. MICRONIZED FOR INSTANT SOLUBILITY. Dissolves quickly...

Living Organic Soil with Malibu Compost There is Approximately 7.5 Gallons of organic soil in each Cubic Foot Bag. BuildASoil’s Original Recipe with Biodynamic Malibu Compost! This water only mix was based on the famous Clackamas Coots...

3 Times more available than standard Calcium phosphate due to it's fine micronization.BuildASoil Calcium Phosphate is a natural mined mineral used for soil building. It can be applied dry or in a liquid suspension to the soil.For best...

3 Times more available than standard Calcium phosphate due to it's fine micronization.BuildASoil Calcium Phosphate is a natural mined mineral used for soil building. It can be applied dry or in a liquid suspension to the soil.For best...

Soil conditioner that loosens soil, provides aeration and retains water. Can be used to start seeds, propagate cuttings and store bulbs. Blend with peat moss and perlite for custom soilless mix.

Lambert Horticultural Wood Charcoal filtration properties aid a media by purifying air and water. It is also used at the bottom of containers to aid in drainage of excessive water. Charcoal is also used with other substrates in the cultivation of certain...

Lightweight soil conditioner that loosens clay soil, reduces caking, and improves drainage and aeration. Can be used to start seeds, propagate cuttings and store bulbs. Blend with peat moss and vermiculite for custom soilless mix.