Soil Additives

Last Longer Than Perlite & Has More Minerals 3/8" x 1/4" Pumice is perfect for potting soil.Pumice is created when super-heated, highly pressurized rock is violently ejected from a volcano. The unusual foamy configuration of pumice happens because of...

Wiggle Worm Soil Builder PURE Worm Castings are an organic fertilizer that, because they are pure, when a small handful is added during transplant you could see plants that are 3 times larger and more fruitful. This makes it extremely cost effective...

GAIA GREEN Worm Castings are the unprocessed manure of earthworms. This all-purpose fertilizer is high in organic matter, and adds essential nutrients to the soil to encourage strong plant growth. Apply as a top dressing, side dressing, or work into soil...

100% Pure Freeze Dried Coconut Water Powder For Your Garden! Now Even More Soluble. No Fillers or starches, just pure great tasting all natural freeze dried young coconut water powder. FREE SHIPPING + Better Pricing + Better Product = BuildASoil...

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.

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...

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.

The reason we offer this rice bran, is because its an excellent nutrient for making your own fermented fertilizer called Bokashi. Besides this rice bran, you will also need molasses, water, and EM-1. ÔªøFREE SHIPPING on select Organic Rice Bran!A...

3 Types of Compost + Added Minerals. Top dress handfuls across soil surface before/during flowering. Increased Yield is often related to the health of the plant. To have a healthy plant, the soil must be in top shape. Many expensive flowering...

Coast of Maine Schoodic Blend Cow Manure Compost is a dark, rich soil made from carefully composted cow manure blended with peat and peat humus. The result is an all-natural, easy-to-use, all-purpose organic soil amendment ideal for conditioning...

 Looking for mulch but don't have a farm in your backyard?We have access to an abundance of straw and are happy to ship you some for your small garden. Larger gardens will benefit from sourcing locally. This barley straw is not certified...

 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...