Nature's Living Soil Review 2026: Does This Super Soil Concentrate Work?

Nature's Living Soil review season is here for container gardeners who are tired of juggling bottles of liquid fertilizer. This organic soil amendment concentrate from Nature's Living Soil mixes into ordinary potting soil so you only add water from seed to harvest. Below, we break down what's in the lineup, the brand's own dosage instructions, and who it actually fits.

Nature's Living Soil review: what it is, and does the concept hold up?

Nature's Living Soil is an organic soil amendment concentrate designed to be mixed into commercial potting soil rather than used as a standalone growing medium. The brand's stated goal is a "feed the soil" philosophy: instead of dosing plants with liquid synthetic nutrients on a schedule, you build up the biology and organic matter in the container so the soil itself feeds the roots, and you only add water for the rest of the season.

That concept lines up with mainstream soil science. University of Maryland Extension recommends vegetable and flower beds carry 5 to 10 percent organic matter for the best structure and drainage, well above the 2 to 3 percent most garden soils naturally hold. Extension research also notes that a healthy handful of compost-amended soil can carry up to a billion microorganisms in a single teaspoon — bacteria, fungi, actinomycetes, protozoa and beneficial nematodes that cycle nutrients into a form roots can use.

Peer-reviewed work backs the broader amendment category, too. A meta-analysis of organic soil amendments found they significantly increased total microbial biomass and soil organic carbon compared with synthetic-fertilizer-only controls, and an editorial synthesis in a plant-science journal concluded that organic amendments drive the microbial diversity behind disease-suppressive, self-regulating soil. None of that is brand-specific testing of this product — it's the scientific backdrop that makes the underlying approach credible for container growers.

How it works and how to use it

The brand publishes an exact dosage rate rather than a vague "a scoop per pot" instruction, which is useful for anyone amending containers of different sizes.

Official Dosage

Original Concentrate — 1 lb, 5 lb, 10 lb

3.2 ounces by weight per gallon of container — a 5-gallon container needs about 16 ounces.

Check Current Price

According to the brand's own instructions, there are four ways to apply the concentrate depending on your setup:

1. Super Soil technique — mix the concentrate into potting soil, fill the bottom third of the container with it, top the remaining two thirds with plain base soil, then plant and water.
2. Living Soil technique — amend the whole container at 3.2 oz per gallon, dig a small planting hole, backfill it with plain potting soil, then plant and water.
3. Top feeding — sprinkle one tablespoon on the soil surface per plant, water it in, and repeat every few waterings.
4. Compost tea — steep 2 heaping tablespoons of concentrate with 2 tablespoons of unsulfured blackstrap molasses per gallon of water for 2 to 8 hours, adjust pH to 6.5, and start at a half dose.

For growers mixing their own base soil, the brand's published DIY recipe is 3 parts coir fibre, 2 parts perlite, and 3 parts compost or earthworm castings, amended at 1.5 to 2.5 ounces of concentrate per gallon of base mix. To recycle a container at the end of a season, the brand's rate drops to 1.5 to 3 ounces per gallon of reused soil.

Water chemistry matters just as much as the amendment. The brand's FAQ recommends keeping irrigation water at a pH of 6.2 to 7.0 so plants can absorb nutrients effectively, watering only once the top inch of soil has dried, and letting tap water stand 24 hours (or filtering it) so chlorine dissipates before it touches your containers.

Product lineup: Original, KVS, Girl Flower Power and Soil Revival

The full Nature's Living Soil catalog spans five product lines, plus bundles that pair a concentrate with Soil Revival. The brand states all formulas use "all organic ingredients" but does not publish a full ingredient breakdown on its site — worth knowing before you buy if you need a documented input list.

Best for vegan-input growing

Katie's Vegan Soils (KVS)

Sizes: 1 lb, 5 lb Format: vegan-formulated super soil concentrate Best for: growers avoiding animal-derived inputs

What We Like

• Vegan formulation fits growers who specifically avoid animal-derived amendments.
• Same mix-into-soil application as the Original line.

What to Consider

• No public ingredient list to verify sourcing claims independently.

KVS follows the same concentrate format as Original but swaps in a vegan formulation, based on the same 1 lb and 5 lb sizing. It's the pick if avoiding animal-derived soil inputs is a priority in your growing setup.

Check Current Price

The lineup also includes an Autoflower Concentrate, a variant sized and marketed for fast-cycling annual plants, and bundle packages that pair a 5 lb Original Concentrate with a 100g Soil Revival pouch. Gardeners in the UK or EU can find a vegan version of the product through a separate regional site, per the brand.

Side-by-side comparison

What to look for before you buy a soil concentrate

Match the amendment to your growing containers

Because dosing is by weight per gallon of container, tally up how many gallons of soil you're actually amending before choosing a bag size. A single 5-gallon container needs about 16 ounces at the brand's Living Soil rate, so a handful of raised containers can burn through a 5 lb bag faster than it looks on paper. For a permanent growing setup, raised beds and garden structures can help organize and expand your growing space.

Check your soil's starting condition

Amendments work hardest on soil that needs structural help. University of Maryland Extension notes organic amendments such as compost and worm castings improve both clay-heavy and sandy soils — building crumbly structure and drainage in clay, and boosting water and nutrient retention in sandy mixes. If you're already gardening in a well-built, high-organic-matter potting mix, the incremental benefit will be smaller than it is for tired or compacted container soil.

Decide how hands-off you want the season to be

The brand's core pitch is "just add water" from seed to harvest, with the concentrate supplying the ongoing nutrient cycle instead of a weekly liquid feed schedule. That's a genuine convenience trade-off worth weighing: less frequent mixing and measuring, in exchange for trusting a single upfront application to carry the season.

Handling concentrated organic amendments regularly can dry out or irritate skin, so it's worth reading our guide on how to protect your skin while gardening and checking whether arm sleeves for gardening or a reviewed option like the Farmers Defense line fit your routine before a season of regular soil mixing.

Common mistakes to avoid

Even a well-designed soil amendment underperforms if the application goes wrong. These are the errors that most often show up with concentrate-based feeding systems.

• Guessing the dose instead of weighing it. Because the brand's rate is 3.2 ounces by weight per gallon, a kitchen scale gets you a far more consistent result than eyeballing scoops.
• Ignoring water pH. The brand ties nutrient uptake to a 6.2 to 7.0 pH range; skipping a pH check on tap or well water can undercut an otherwise correct amendment rate.
• Watering on a fixed schedule instead of by feel. The brand recommends waiting until the top inch of soil dries rather than watering on a fixed calendar.
• Reusing soil without rebuilding biology. Skipping a reintroduction step, such as compost tea or Soil Revival, leaves reused container soil depleted of the microbes that made it work the first season. Earthworm castings are one well-documented way to reintroduce that biology — they carry mycorrhizal fungi and nitrogen-fixing rhizobacteria that support root uptake and natural disease suppression.
• Missing the shipping-damage window. The brand's policy requires damage claims within 5 days of receipt, with photos of the packaging and contents — worth checking a bag the day it arrives rather than weeks later.