Build A Soil Promo Codes and Coupons September 2025

Build A Soil

BuildASoil is a Colorado-based company specializing in organic gardening supplies, focusing on living soil and sustainable growing practices. They offer a wide range of products including custom soil blends, amendments, compost, and growing equipment. The company emphasizes education and community building through their extensive online resources and growing guides.

buildasoil.com

Today's Build A Soil discount codes

TOP PICK

5% off

201 uses

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worked 20 days ago

5% Off Storewide at Build A Soil

5% off

1251 uses

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worked 20 days ago

5% Off Storewide at Build A Soil

5% off

119 uses

high

worked 20 days ago

5% Off Storewide at Build A Soil

5% off

36 uses

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worked 20 days ago

5% Off (Storewide) at Build A Soil

Featured Build A Soil Products

Rootwise Bio-Catalyst Enzyme Elixer

Rootwise Bio-Catalyst Enzyme Elixer utilizes organisms found in the Rootwise Mycrobe Complete along with select yeast and fungi cultures, enzymes are produced, extracted, and concentrated into a non-living liquid form. This results in an enzyme profile that functions symbiotically with the organisms present in Mycrobe Complete soil inoculant. These digestive enzymes are the catalysts of the soil biology process which enables nutrient uptake. When applied in tandem with a soil inoculant the enzymes allow the microbes to come out of dormancy and perform their tasks with increased viability and efficiency. Establishing this ideal biological system aids in your crop's ability to thrive. Grab all 3 products in a Bundle and save! Rootwise Combo Pack Useful Info Rootwise Mycrobe Complete and Enzyme Explanation from BuildASoil on Vimeo. How To Use 3-5 ml per gallon. 1 Pint per Acre of Soil 2.5 Gallon Concentrate is recommended at 1 ml per gallon of water. This 2.5 gallon concentrate will make 10 gallons of standard Bio-Catalyst Enzyme Elixer. This concentrate is most cost effective for large scale use.

USD 36.00

Rootwise Mycrobe Complete

Rootwise Mycrobe Directions 1 teaspoon = 5 g 1 cup = 8.5 ounces ROOTWISE MYCROBE COMPLETE is "A diverse inoculum of Beneficial Microbes and Mycorrhizae which establish soil-to-root relationships that may assist nutrient uptake, pathogen resistance, and overall plant vigor." Improving nutrient availability and plant health through active soil biology is achieved through balance. Establishing the ideal symbiotic relationship between our crop’s roots and the soil relies on a diverse population of bacteria and fungi. Each unique microbial function group is responsible for specific duties that trigger a chain reaction resulting in enzymatic exchange, metabolite production, and efficient uptake of nutrients. The culmination of this process results in our crop’s ability to achieve maximum genetic potential. How is this accomplished? Most of us are familiar with the principles of balancing nutrients within our soils through fertilization and amending. The same method is applied to biological inputs.Consistent, balanced doses have the greatest benefit. As always, heavy doses of any one input, whether it be a macronutrient or single microbe, can cause an imbalance somewhere in the processes of overall plant health. Employing full-spectrum biology is an invaluable tool for managing your living soil systems. This approach is the foundation for the microbial populations found in Rootwise Mycrobe Complete. Carefully chosen to achieve a balanced exchange between plant and soil, multiple species from each function group are present in agricultural strength populations. This inoculant works equally well for jump starting biological actions in newly built soil mixes as it does maintaining ongoing populations in well established soils. Want all 3 Rootwise Support System products?Get the Rootwise Combo Pack and save! Useful Info Rootwise Mycrobe Complete and Enzyme Explanation from BuildASoil on Vimeo. How To Use Helpful tips: Our dilution rates make a very concentrated solution. Apply efficiently. We recommend consistent follow-up doses after initial inoculation to encourage ideal nutrient cycling. After initial mixing, allow sufficient time (1/2 hour) for microbes to come out of dormancy before applying. Prior to application, ensure your soil or medium is sufficiently saturated, then use just enough liquid concentrate to penetrate root zone. This ensures your microbes have a hospitable environment in which they can immediately colonize. It is most effective to bring the microbes out of dormancy using our recommendations and applying as a root drench, however, if you wish to incorporate the inoculant “dry” into your soil mix, make sure your soil has sufficient moisture and will be immediately planted whether you use a cover crop or main crop. Inoculated soils that sit in totes or bags inevitably have inconsistent moisture levels and temperature zones, all leading to less than ideal survivability for soil biology.

USD 30.00

Thrive Yah-Whey Concentrate: Holy Cow

🌿 Thrive Holy Cow 🐄 4x Concentrated Yah-Whey High Potency Calcium and Phosphorous Fermentation Plant Booster Warning: Contents are alive and may build pressure — vent regularly and see storage notes below for details. 4 Times as concentrated as Yah-Whey Why is it called Holy Cow? Well, it's derived from "Yah-Whey" which is Holy and Cow Cal from BuildASoil, so naturally, it's Holy Cow!! That and those are the words you're going to tell yourself after the first application! 🙌 Which one should I get? Holy Cow is a Concentrated Version of Yah-Whey. Yah-Whey: 1-2 Ounces per gallon Holy Cow: 1/4 - 1/2 Ounce Per Gallon (4 Times as concentrated) 1 Quart Holy Cow = 1 Gallon of Yah-Whey 1/2 Gallon of Holy Cow = 2 Gallons of Yah-Whey 1 Gallon of Holy Cow = 4 Gallons of Yah-Whey Concentrate saves on plastic and on shipping! 🌱 Derived From: Yah-Whey Cow-Cal 24 Horticultural Coconut Water Powder Organic Molasses Humic Acid 🧬 Features & Benefits: 🔬 3-Stage Fermentation Process Holy Cow has a unique 3-stage fermentation process, ensuring all inputs are broken down and highly bioavailable for your plants and soil. 🧪 Concentrated Probiotic Solution Yah-Whey is a concentrated Probiotic Kefir Grain, Whey, and Curd solution. Fermented compounds create a diverse probiotic whey for your plants and soil. Perfect for growers who don't have the resources to make compost teas or top dressing inputs. 🥛 Cow Cal 24 Addition Thrive Probiotics added Cow Cal 24 to make a highly concentrated fermented cow's milk product! This innovative calcium supplement helps in supplementing calcium, phosphorus, magnesium, manganese, potassium, fats, and proteins. 🥥 Polysaccharide Blend Holy Cow and Yah-Whey use a diverse blend of Polysaccharides including Build a Soil Raw Freeze Dried Coconut powder, Cow's milk, and Sugar Cane molasses. This blend feeds and stabilizes the microbes, providing trace elements, vitamins, minerals, enzymes, amino acids, antioxidants, and phytonutrients. 🌾 Suitable for: Seed starting Young veg plants Older established plants or trees Early to mid-flowering plants Suitable for a wide range of plant and soil types. Can be used as part of a regular feeding regimen or as a targeted supplement to address specific calcium and magnesium deficiencies. 🌟 How to Use: Your plants will be reaching to the sky as you say HOLY COW this stuff works with just one application! 🌱💧 Notice: Strong Odor! Stink in = Stink out 💨 📅 When to Use: Holy Cow can be used for seed starting, young veg plants, older established plants or trees, and early to mid-flowering plants. For annual plants, please do not feed late into flowering, as your plants won't finish or may die off. 🛠 Storage: Keep product in dark cool area. Keep fully sealed after use. For extended storage (4-12 months) store in fridge. Contents will expire after 12 months if not opened. Contents contain living organisms, use accordingly. Secondary fermentation may occur, causing the bottle to expand. Regularly vent by unscrewing the cap, to mitigate bottle expansion. 📋 Ingredients: Grass Fed Milk Kefir Whey Cow-Cal 24 Organic Sugar Cane Molasses BuildASoil Freeze Dried Horticultural Coconut Water Powder Humic Acid 📝 Directions: Use as a soil-drench or foliar application: DO NOT USE LATE IN FLOWERING. 0.5-1 Ounces per gallon for Foliar Applications, Seed Starting, and Rooting Clones (Plug or Aeroponic Rooting). 1-2 Ounces/Gallon of water for Soil Drench applications (Do not use more). 2-4+ Ounces/Gallon for Composting and starting your own Ferments!

USD 60.00

Thrive Probiotics Yah-Whey

Yah Whey by Thrive Probiotics Revolutionary liquid probiotic crafted from the Whey of Kefir Want bigger bottles? Grab our Yah-Whey Concentrate that is 4 Times as strong. Warning: Contents are alive and may build pressure — vent regularly and see storage notes below for details. Researching Kefir quickly leads one to find a myriad of legends pertaining to this ancient, thousands of year old, practice of fermenting milk to produce a stable probiotic. This probiotic is legendary for its health properties. Ingredients: Purified Water, Organic Molasses, Yeast Cultures, Lactic Acid Bacteria, Humic Acid Whey from kefir grains have a complex microbial biology composition with polysaccharides, nutrients, minerals and proteins. These fermented compounds create a diverse probiotic whey for your plants and soil. Soon you'll be shouting, YAH WHEY!!!!! As your plants pray to the light. Check out the photo of the active fermentation. That is without any magnification! The image is taken with a normal cell phone camera. So what does that have to do with growing plants? Organic matter in the garden is broken down by probiotics, but an often forgotten component is the Nitrogen that the breakdown requires to speed up the process. Composting is all about Carbon to Nitrogen ratios. Organic Potting soils can have high carbon and when amending with rice hulls and organic amendments the soil can have an elevated C:N ratio which means the soil will be taking Nitrogen for a while before it starts to release it again. Now that you understand the problem, you can clearly see the solution. YAH WHEY! When you use stabilized Kefir Whey designed by Thrive you will be simultaneously feeding the soil much needed amino proteins (Nitrogen) That will help the breakdown of nutrients and also make readily available food for your plants. Once you see the level of calcium, nutrients and vitamins that are contained within kefir and combine that with the knowledge of the diversity of lactobacillus cultures present you can really start to understand that this is more than your average product. This Yah Whey was made to help your soil and your plants THRIVE! Storage: Keep product in dark cool area. Keep fully sealed after use. For extended storage (4-12 months) store in fridge. Contents will expire after 12 months if not opened. Contents contain living organisms, use accordingly. Secondary fermentation may occur, causing the bottle to expand. Regularly vent by unscrewing the cap, to mitigate bottle expansion. DirectionsIt can be used as a soil-drench or foliar application: 0.5-1 Ounces per gallon Foliar Applications, Seed Starting and Rooting Clones (Plug or Aeroponic Rooting) 1-2 Ounces/Gallon of water for Soil Drench applications 2-4+ Ounces/Gallon for Composting, Animal Feed, and starting your own Ferments Outdoor Grow? Want a Bigger Bottle? Check out the new concentrated version called Holy Cow. It's 4 Times as potent. Check out Holy Cow Here.

USD 40.00

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5% off

745 uses

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worked about 1 month ago

Shop More, Save More—5% Off Sitewide on All Products

10% off

23 uses

high

worked 20 days ago

10% Off Select Catgories at Build A Soil

10% off

76 uses

low

worked 8 months ago

10% Off Storewide Does Not Apply to Ac Infinity and Autopot Products at Build A Soil

5% off

28 uses

low

worked 9 months ago

5% Off (Storewide) at Build A Soil

More Build A Soil Products

Rootwise Bio-Phos - Biological Bloom Support

A full-spectrum soil inoculant formulated with an emphasis on microbes which mobilize Phosphorus in all soils. Simple Drench: Initial Inoculation: Mix 2 Tsp into 5 Gal of water and apply to root-zone of each container. Follow up doses: Mix 1 Tsp into 5 Gal of water and apply to root-zone. Repeat every 2 weeks. Large Garden and Farm Application: 1) Apply at rate of 6gms/yd of soil mix or 1000ft2 of surface area. 2) Use 110gms/10,000ft2 of green-house. 3)Use 110gms/acre for row crops in native soil. Want all 3 Rootwise Support System products?Get the Rootwise Combo Pack and save! Useful Info Used by the 2022 North American World Record Pumpkin Grower How to Use Simple Drench: Initial Inoculation: Mix 2 Tsp into 5 Gal of water and apply to root-zone of each container. Follow up doses: Mix 1 Tsp into 5 Gal of water and apply to root-zone. Repeat every 2 weeks. Large Garden and Farm Application: 1) Apply at rate of 6gms/yd of soil mix or 1000ft2 of surface area. 2) Use 110gms/10,000ft2 of green-house. 3)Use 110gms/acre for row crops in native soil.

USD 45.00

BuildASoil BIG 6 Micronutrients + Humic Acid

BuildASoil BIG 6 Micronutrients + Humic Acid We have done thousands of soil tests and over the years and we've noticed that our particular soils are usually very high in Iron but very low in manganese and 5 other Micro-nutrients like Boron, Cobalt, Copper, Molybdenum and Zinc! Once you regain balance in your Iron to Manganese relationship and bypass the limiting factors of the others, you are in a position to drastically increase yield and disease resistance. This is going to be a flagship product here at BuildASoil and we are very happy that Dr. Faust at Faust Bio-Ag was willing to custom formulate this product for us. If you have been using TM-7 this is a great time to drop the Iron and ramp up the Manganese by using our newest product.... the BuildASoil BIG 6 MicroNutrients!! These 6 Micronutrients are balanced and chelated through Faust Ful-Humix Humic Acid to make sure that we can use safe amounts and they will only help the plants. If you have questions please feel free to email us, Support@BuildASoil.com Useful Info BuildASoil BIG 6 Micronutrients + Humic Acid from BuildASoil on Vimeo. Guaranteed Analysis:Sulfur(S)........................2%Copper (Cu)............0.31%Boron (B).................0.37%Cobalt (Co).............0.05%Manganese (Mn)......2.4%Molybdenum (M0)..0.1%Zinc................................0.7% Non-plant food ingredients: Humic 40% & Fulvic 10.5% Derived from: Boron, cobalt sulfate, copper sulfate, ferrous sulfate, manganese sulfate, sodium molybdenate, zinc sulfate and chelated with humic and fulvic acids derived from fresh water cretaceous humate deposits. How To Use Seed activation: For vegetable seeds soak 72 hours at 1/8 tsp per gal. For other, soak for 24 hours at same ratio. Soil and Container plants: 1/4 - 1/2 Tsp per gal of irrigation solution. Hydroponic: 1/4 - 1/2 Tsp per gal of nutrient solution used in reservoir (use with every change. Top-offs can be chared with 1/4-1/2 normal rate). Foliar Rates: 1/4 Tsp per gal every 7-10 days. Field Use: 2-4 pounds per acre every 3-6 weeks. Pre-Plant Soil Conditioning/Bioremediation: 5-10 pounds per acre. 1/4 tsp= 1g 1/2tsp= 2g To Make a Concentrated Liquid Solution: 1. Add 300 grams of Big 6 or TM-7 to one gallon of hot water (110 degrees F) and agitate.2. After 1 hour, all undissolved solids will have settled.3. Apply liquid solution at a rate of slightly less than 1/2 ounce per gallon of water.*Please note approx 15% is insoluble and can be cast in compost or garden. Exceeding application rates can cause irregular growth. Store dry and away from excessive heat.

USD 19.80

Bio-Char

Enhance your soil's performance with our premium-grade Bio Char, a revolutionary product designed to improve soil health, water retention, and plant growth. At BuildASoil, we offer two types of Bio Char - Raw and Pre-Charged, tailoring to a variety of gardening needs. Raw Bio Char is perfect for experienced gardeners looking to customize their soil amendments. This untreated version offers maximum flexibility, allowing you to charge it with your preferred nutrient-rich additives or microbial inoculations. Pre-Charged Bio Char is our all-in-one solution, pre-soaked in an enriching mix of Ferti Nitro soy aminos and Rootwise microbe complete. This blend of soy aminos and Rootwise Mycrobe complete helps charge sponge like char so that it gives back to your soil. The Pre-Charged Bio Char not only enhances nutrient uptake but also optimizes the microbial life in your soil. Both versions of our Bio Char can help improve soil structure and fertility, boost nutrient absorption, and optimize root development. They are designed to support sustainable gardening practices and contribute to better yields and healthier plants. Choose from our raw or pre-charged Bio Char and give your plants the very best! Rediscover the power of enriched soil today with BuildASoil's Bio Char products. Note: Bio Char is safe to use with all types of plants and in all types of soils, but it's always a good idea to conduct a soil test before incorporating new amendments. Also, google terra preta and the history of bio char it's fascinating! Useful Info Available Raw or Pre-Charged 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. How To Use Bio-Char for your soil mix. Recommended at 2-5% of your Organic Potting Soil mix. Excellent for No-Till. Article on the beetle problem. We use this beetle kill wood to make the Bio-Char

USD 30.25

Basalt Rock Dust Soil Amendment

Basalt Rock Dust: The Ultimate Soil Enhancer 🌱🌟 Looking for Bulk? See Bulk Basalt Here. Why Basalt Rock Dust? 🤔 Natural Release of Elements: Provides a slow, natural release of essential elements and trace minerals 🌍, ensuring a steady nutrient supply to your plants 🌿. Boosted Nutrient Intake: Enhances the nutrient intake of plants 🌾, leading to healthier growth and more robust yields 📈. Higher Brix Reading: Results in crops with a higher sugar content 🍭, indicating better quality and flavor 🍅. pH Regulation: Rebalances soil pH ⚖️, creating an optimal environment for plant growth. Microbial and Earthworm Boost: Increases the growth of beneficial microorganisms 🦠 and earthworm activity 🪱, vital for soil health. Humus Complex Formation: Builds the humus complex 🌱, the organic component of soil, which improves soil structure and fertility. Erosion Prevention: Helps in preventing soil erosion 🌊, preserving the topsoil layer essential for plant growth. Enhanced Soil Storage: Increases the water 💧 and nutrient storage capacity of the soil, benefiting plants during dry spells 🌞. Natural Pest Resistance: Increases resistance to insects 🐜, disease 🦠, frost ❄️, and drought 🌵, reducing the need for chemical interventions. Nutritious Crops: Produces crops that are more nutritious 🥦, benefiting both the environment and consumers. Flavor Enhancement: Enhances the flavor in crops 🍓, making them tastier. Eco-Friendly: Decreases dependence on synthetic fertilizers, pesticides, and herbicides 🚫💉, promoting sustainable agriculture 🌍. How to Apply Basalt Rock Dust: Composting with Rock Dust: Combine rock dust with organic materials in compost 🍂 to speed up the composting process and remineralize soils. Add 2-20 lbs of rock dust per cubic yard of compost. Soil Acidity Regulation: If the soil is acidic, combine rock dust with agricultural limestone to neutralize the soil's pH ⚖️. Direct Application: Rock dust can be spread by hand ✋, rototilled, disked in, or applied with a manure or fertilizer spreader. It can also be incorporated into potting soil mixtures or added directly to compost. Quantity: Depending on your soil quality, apply 1-10 tons per acre. The finer the rock dust, the less you need. An application of 3 tons per acre could last a few years, while 10 tons per acre could last many years. A Note on Rock Types: While various rock types can be used for remineralization, Basalt stands out as an ideal source 🌋, especially in regions without glacial deposits. It offers a broad spectrum of minerals in a natural balance, making it a superior alternative to chemical fertilizers. Elevate your garden's potential and embrace the power of nature with Basalt Rock Dust 🌸🌿🌼.

USD 21.00

5% off

80 uses

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worked 10 months ago

5% Off Storewide at Build A Soil

5% off

229 uses

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worked 10 months ago

5% Off Storewide at Build A Soil

13% off

100 uses

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worked 10 months ago

13% Off Storewide (Minimum Order: $130) at Build A Soil

5% off

94 uses

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worked 10 months ago

5% Off Storewide at Build A Soil

Sustainability Score

82%

BuildASoil demonstrates strong commitment to environmental practices through local sourcing, organic methods, and minimal packaging waste. They maintain transparency about their sourcing and manufacturing processes. Areas for improvement include better documentation of labor practices and clearer reporting on their environmental impact metrics. While their core business promotes sustainability, they could enhance their formal ESG reporting and certification standards.

About Build A Soil

3.0 (2)

FAQs

: BuildASoil occasionally offers seasonal sales, particularly during Black Friday and Cyber Monday. They also provide bulk pricing discounts on many products and free shipping on orders over $99.
: The best times to purchase are during their Black Friday sale in November and early spring (February-March) when they often run pre-growing season promotions.
: Yes, BuildASoil offers a points-based loyalty program where customers earn points on purchases that can be redeemed for discounts on future orders.
: New customers can sign up for their newsletter to receive a one-time discount code and be notified of future sales and promotions.
: In the past month, Build A Soil has launched 10 new promo coupons for shopper discounts. This indicates that Build A Soil provides regular opportunities for customers to save money on their purchases.
: On average, Build A Soil provides 5.5 discount coupons each month. Based on historical data, the average time between Build A Soil coupon releases every 5 days. However, this rate depends on various factors such as seasonal promotions (Black Friday, Cyber Monday, etc.), product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking Build A Soil website regularly, subscribing to email newsletters, and following them on social media.
: Build A Soil is offering 6 working store-wide codes, however they are also offering 15 additional discount codes with a best discount of 5% off
: terra.coupons is the #1 provider of discount codes for your favorite retailers, such as Build A Soil. As a crowd-sourced platform for coupon codes, we accurate codes for over 10,000 stores. Save time and avoid expired codes by checking terra.coupons for the latest Build A Soil discount codes.

Curated by

Massam A.

Discount Finder

Last updated September 2025

Hailing from the scenic Pacific Northwest, Massam is a former chef turned deal-hunting enthusiast. When he's not tracking down the latest discounts, you'll find him exploring hiking trails or experimenting with sustainable living. He brings the same attention to detail from his culinary days to curating the best promotions for you.

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From the blog

2025-04-29

Build A Soil Promo Codes and Coupons September 2025

Build A Soil

Today's Build A Soil discount codes

Featured Build A Soil Products

Rootwise Bio-Catalyst Enzyme Elixer

Rootwise Mycrobe Complete

Thrive Yah-Whey Concentrate: Holy Cow

Thrive Probiotics Yah-Whey

What Build A Soil coupons are available today?

More Build A Soil Products

Rootwise Bio-Phos - Biological Bloom Support

BuildASoil BIG 6 Micronutrients + Humic Acid

Bio-Char

Basalt Rock Dust Soil Amendment

Sustainability Score

About Build A Soil

FAQs

Curated by

Massam A.

Latest Build A Soil coupon activity

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