BuildASoil Potting
Soil 3.0 — The Most Loaded Mix They Make
Designed for water-only growers. Compost-based, lab-tested, packed with living biology. Over 636 verified 5-star reviews and a decade of trust.
Click to reveal your exclusive code for BuildASoil Potting Soil 3.0. Code copies automatically.
🔓 REVEAL CODE & SAVE
Used 14 times today · Code verified
What’s Actually Inside the Bag
Every ingredient in BuildASoil 3.0 is sourced for quality and verified by Logan Labs soil testing. No “dirty” inputs, no mystery fillers.
Application Rates & Sizing Guide
Use this quick reference to figure out exactly which bag size you need before you buy.
| Pot Size | Volume Needed | Recommended Size | Est. Cost After Code |
|---|---|---|---|
| 1-gallon | ~1 quart | 8 Quart bag | ~$24 |
| 5-gallon | ~5 quarts | 8 Quart bag (fills 1–2 pots) | ~$24 |
| 10-gallon | ~2.5 gallons | 1 Cubic Foot bag | ~$49 |
| 25-gallon bed | ~3–4 CF | Multiple CF bags or Pallet | Contact for bulk |
Claim Your BuildASoil Discount
Click to reveal your code. It copies automatically — just paste at checkout.
🔓 Claim Your BuildASoil Discount →
Used 14 times today
BuildASoil 3.0 Is The Real Deal for Serious Growers
If you’ve been searching for a water-only potting soil that actually delivers — not a bag of perlite with some ferts sprinkled in — BuildASoil 3.0 is the answer. This is a lab-tested, living soil crafted in batches that take up to a month to cure properly.
It’s not cheap, but the economics make sense: one quality bag, no expensive nutrient schedule, no guessing, just consistent results backed by 636 growers who’ve already proven it works.
- Logan Labs soil-tested for balanced fertility — not guesswork
- Never sterilized — arrives with living biology intact
- Compost + worm castings base holds moisture without drowning roots
- Fish bone meal + kelp + malted barley = slow, steady feeding for weeks
- 98% of reviewers would recommend it to a friend
Common Questions Answered
Everything you need to know before you buy.
-
BuildASoil 3.0 is designed specifically for the water-only grower. It comes pre-amended with a full spectrum of organic nutrients (fish bone meal, kelp, alfalfa, malted barley, volcanic minerals) and has been balanced based on Logan Labs soil testing. Most growers can take plants from seedling to harvest with water only, though some choose to add top-dressings later in the cycle for extended runs.
-
A 5-gallon pot holds roughly 5 quarts of soil. The 8-quart bag ($27) can fill one to two 5-gallon pots depending on how full you pack them. If you’re running multiple pots, the 1 Cubic Foot bag ($55) is much better value per gallon.
-
Yes — BuildASoil 3.0 can be blended with coco coir as the base medium instead of peat. Keep in mind that coco is lower in CEC (cation exchange capacity) than peat, so the soil will drain faster and nutrients may leach more quickly. Many growers successfully use coco blends; just watch your watering intervals and consider adding more compost to compensate.
-
BuildASoil ships to the continental US, plus Alaska, Hawaii, Puerto Rico, Guam, and the US Virgin Islands. They also ship to Canada for select items — Canadian customers should select “UPS Standard Shipping to Canada” at checkout to avoid customs issues. International shipping beyond North America is generally not available for soil products due to weight and agricultural import restrictions.
Ready to Grow With the Best?
Use your exclusive code to save on BuildASoil Potting Soil 3.0. Code copies automatically on click.
🔓 Reveal Code & Shop BuildASoil →
Used 14 times today · Verified
What Growers Are Saying
636 verified reviews on the BuildASoil site. These are real buyers, not paid endorsements.
Been using BuildASoil for 5 years straight. Switched to 3.0 and never looked back — this is the most complete soil they’ve ever made. Water-only all the way to harvest, no issues.
Explosive growth from week one. The soil is alive from the moment you open the bag. The results have been phenomenal — best I’ve seen in years of growing organically.
Ran it water-only before and took it all the way to harvest without a single problem. Solid soil, great company to support. Amazing stuff!