Soil Additives

 Clean, washed silica sand. Excellent for formulating your own cactus soil. Mix with Garden Soil to create a loamy soil. 

  Contains: Organically Fed, Humanely Treated Outdoor raised Dairy cow manure, straw, vineyard wood chips, and biodynamic concentrations of yarrow, chamomile, valerian, stinging nettle, dandelion, and oak bark. Mix 2 inches of Malibu Compost...

 There is a HUGE Kelp shortage this year and we have stocked up on premium organic kelp meal to make sure we don't run out this season. If you have any questions just let us know. Hawaii and Alaska customers only: The 25 lb Food Grade...

 Diatomaceous Earth is an odorless and Non Toxic white powder. It is composed of finely milled fossilized shells of organisms called diatoms. The powder has an abrasive quality similar to pumice with very high porosity. The porosity allows it to...

Stimulates vigorous growth and deep green color! A strong natural source of nitrogen, Organic Fish Meal is uniquely processed to retain maximum nutritional value without using high temperatures or synthetic chemicals. Applied to leaves it is assimilated...

  Western Colorado Is Losing Thousands Of Beautiful Trees To BeetlesBuildASoil is now turning that wasted wood into a Glorious Soil Amendment.Weight is approximate because we pack by volume.  Available Raw or Pre-ChargedOur...

 BuildASoil's Favorite Mustard Seed Meal Fertilizer is approved for organic production. Our fertilizer is rich in natural plant nutrients and amino acids. Its formulation is 100% plant-derived allowing for a unique organic composition that...

Down To Earth™ Shrimp Meal 6-6-0 is an excellent all-purpose fertilizer rich in nitrogen, phosphorus and calcium. It is wonderful for use on all types of garden vegetables, flowers and herbs. A valuable byproduct of the fresh Pacific shrimp processing...

Down To Earth’s Garden Gypsum improves the physical condition of landscape, lawn and garden soils while adding calcium and sulfur. Commonly used to reduce soil compaction and increase drainage in heavy clay soils, gypsum is also used to help remediate...

Procision Perlite Coarse is cut with a ten mesh screen leaving all material to retain #4. Perlite ore is a naturally occurring volcanic glass containing a small percentage of water. When that ore is introduced to tremendous heat the glass liquefies and...

Procision Perlite Coarse is cut with a ten mesh screen leaving all material to retain #4. Perlite ore is a naturally occurring volcanic glass containing a small percentage of water. When that ore is introduced to tremendous heat the glass liquefies and...

GROW!T Perlite is a versatile and inert soil amendment and soilless medium. Use it to aerate soil in container gardening, for germination and propagation of seedlings, for propagation of cuttings, and as a hydroponic medium. Hydrofarm searched globally...