Soil Additives

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...

Rice hulls are now available in smaller sizes for gardeners and small growers! This natural, sustainable, and renewable alternative to peat, vermiculite, and perlite makes an impressive growing media when mixed with compost or your favorite potting soil...

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.

Down To Earth’s AZOMITE, the “A to Z Of Minerals Including Trace Elements,” is a natural trace mineral product formed from the dust of an ancient volcano in central Utah. AZOMITE can improve plant and root system growth, crop yields, quality and...

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.

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.

If you're looking to mix your own soil you will need a Nutrient Kit and a Mineral Kit.Save Money and Get both together in our Complete Soil Building Kit. If you're looking for minerals see our Mineral Mix for Peat Moss. We separate the two so that the...

If you're looking to mix your own soil you will need a Nutrient Kit and a Mineral Kit.Save Money and Get both together in our Complete Soil Building Kit. If you're looking for minerals see our Mineral Mix for Peat Moss. We separate the two so that the...

AG Limestone is an agent added to soil to help raise the pH without adding trace amounts of magnesium like Dolomite Lime.This Limestone contains 4% magnesium compared to Dolomite which is approximately 14% magnesium. Ag Lime contains aragonite which is...