Golf course fairway with pristine green turf
For Golf Course Superintendents USDA Organic • Science-Backed

Better greens start below the surface.

Organic soil conditioners, liquid aeration, and biological fertilizers that build resilient playing surfaces from the rootzone up.

Soil Biology Nutrient Retention Stress Recovery
USDA Organic USGA-Spec Compatible No Disruption to Play

The chemical treadmill is real.

You know the cycle. More synthetics, less biology, higher inputs, same problems. Here's what's actually happening under your greens.

The dead rootzone

Years of synthetic inputs have sterilized your soil biology. CEC in sand-based greens sits at 1-3 meq/100g — nutrients wash straight through. You're feeding the drain, not the roots.

The budget squeeze

Chemical costs go up every year. The board wants the same results for less money. You know there's a better way, but switching feels risky when members expect perfection on every green, every day.

What's not right about it

Championship turf shouldn't depend on a chemical IV drip. A superintendent who manages 150 acres of living soil deserves tools that work with biology, not tools that kill it.

Your guide

Turf science, not a sales pitch.

Philip McWhirter works with golf course superintendents to build organic turf programs that actually hold up under heavy play. He understands rootzone chemistry, USGA specs, and the reality of managing a course where members notice everything.

The conversation starts with your soil, not our products. What's your rootzone mix? What are your infiltration rates? What problems keep showing up despite your current program? Philip will help you build a plan around your course's specific conditions.

See how our full lawn and garden line supports turf professionals at every level.

Turf program specialist USGA rootzone experience Organic transition programs Actually answers the phone
Philip McWhirter, Southland Organics turf specialist

Philip McWhirter

Turf Program Specialist

Three jobs. Real solutions.

Every product here exists to do one of three jobs on your course. Pick the job you need help with — we'll show you the right tools.

Skip to all golf course products

Recommended starting point

Build soil biology that holds up under 200 rounds a week.

Sand-based greens drain fast and hold almost nothing. Low CEC means nutrients wash through before roots can use them. You keep applying more because the soil can't hold what you gave it last week.

Best for: Low CEC in sand rootzones, poor nutrient retention, or declining organic matter

20-40% CEC increase in sand-based rootzones Humic acid research, Soil Science Society of America

Break the chemical cycle without losing playability.

Every synthetic app kills a little more soil biology. You know it. But the board wants green greens and the members want firm roll — so you keep spraying. The inputs go up, the biology goes down, and the cycle tightens.

Best for: Transitioning from synthetic programs, reducing fungicide dependency, or rebuilding after fumigation

15-30% improvement in water infiltration rates USGA-spec green superintendent trials

Recover from heat, traffic, and aerification — faster.

Summer stress hits in July. Aerification disrupts play in September. Overseed transition drags into November. Your turf spends half the year recovering from something. You need recovery tools that work with biology, not against it.

Best for: Post-aerification recovery, summer stress management, or overseed transition support

Ball roll consistency within weeks of starting program Superintendent recovery program data, 2023-2024

Shop Golf Course Products

Everything on this shelf exists to do one of the three jobs above. Start with one product on one green or run the full program.

Full Program

Genesis + Omega + C-Fix covers soil biology, aeration, and carbon across greens and fairways. Most supers start here.

Start with One Green

Pick one product, test it on your worst green for one season. If the infiltration rates and ball roll don't improve, don't reorder.

Torched Weed Killer 2.5 Gallon

Torched All-Natural Weed Killer

Torched is a pet safe grass and weed killer derived from natural ingredients. It is designed for use on non-selective broadleaf weeds and grasses in driveways, sidewalks, gardens and flower beds. Torched is proudly made in the USA and is safe for people, pets and the planet when used as directed! Safety Declaration This product is not registered with the U.S. Environmental Protection Agency since it qualifies for exemption under FIFRA section 25(b) as a minimum risk pesticide. Caution Keep out of reach of children. Avoid contact with eyes and skin. In case of contact, rinse immediately with water and seek medical attention if irritation persists. Do not ingest. If swallowed, seek medical attention immediately. Storage Avoid direct sunlight. Store at temperatures above 40° F. Keep container tightly closed in a well-ventilated area. Store in original container in a cool, dry area away from children and pets. Dispose of contents and container in accordance with local regulations. Do not reuse empty container. If empty: Offer for recycling if available or discard in a sanitary landfill. If partly filled: Call your local solid waste agency for disposal instructions. Never place unused product down any indoor or outdoor drain.

Best for: Backyard flock health

$74.00
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Humate Soil Conditioner 2.5 gal

Genesis

Genesis is a liquid soil conditioner that provides all the building blocks you need to establish stronger, greener turf—faster! Formulated with biologically active, organic matter, Genesis accelerates green-up and is scientifically proven to increase germination rate, soil quality, plant height and mass area. Benefits of Genesis: Stimulates root growth Increases green-up Accelerates seed germination Chelates soil nutrients and decreases leaching Aerates and loosens compacted clay soils Preconditions and activates soil biology to withstand stress Boosts fertilizer applications and unlocks existing soil nutrients Combats negative fungal and bacterial growth Genesis is also available in our Lawn Care Bundles.

Best for: Lawn & turf soil biology

$19.00
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Revival liquid aerator 2.5 gallon

Revival

Revival is the ultimate liquid lawn aerator and microbial dethatcher to reduce soil compaction and break down grass clippings. It returns grass to healthy and lush conditions at the end of the summer season for a full turf revival! Benefits of Revival ( liquid lawn aerator): Provides liquid lawn aeration for regular and heavy clay soils Amplifies soil biology to prevent bacterial and fungal stress Enhances oxygen levels and improves compacted soil Breaks down excess nutrients from previous applications throughout the year Composts organic matter and improves thatch layer Stimulates root growth Sustains vibrant, green grass color longer Chelates soil nutrients and decreases leaching Revival is also available in our Lawn Care Bundles.

Best for: Lawn & turf soil biology

$19.00
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Soil Activator for Lawns with biologically active carbon for healthy turf.

Omega Soil Activator - Boost Nutrient Uptake

Omega is our amplified formula of biologically active carbon and organic acids. The added proprietary blend of beneficial bacteria promotes nutrient uptake and builds grass that is resilient to disease and environmental stress. Benefits of Omega: Decreases nutrient runoff Provides a natural guard to disease and reduces pathogen influence Reduces Zoysia patch and large patch in lawns and fairways Increases plant health and development Increases nutrient uptake Establishes a balanced soil food web Provides relief to stressed and shocked root systems when laying new sods and plugs Increases soil energy as measured by Cation exchange capacity Reduces soil compaction Omega is also available in our Lawn Care Bundles.

Best for: Lawn & turf soil biology

$18.00
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C-Fix Label

C-Fix: Biochar Soil Amendment

Discover C-Fix Biochar Soil Amendment, a revolutionary product that transforms soil health! Infused with biochar, humic acids, and premium composted layer manure, C-Fix elevates soil fertility and quality. Experience improved plant growth, reduced nutrient leaching, and enhanced nutrient retention. Embrace sustainable agriculture with C-Fix for healthier, more productive soils! C-Fix is an innovative product designed to improve soil health. Powered by biochar, humic acids, and well-composted layer manure, it significantly enhances soil fertility and quality, enhancing soil fertility. This product boosts plant growth, helps reduce nutrient leaching, and improves nutrient retention, promoting sustainable agriculture practices. Benefits of C-Fix: Promotes strong growth of plant roots Enhances nutrient availability Adds organic matter and feeds soil microbes Improves soil properties Strengthens stress tolerance

Best for: Lawn & turf soil biology

$9.00
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elemental soil sulfur

Soil Sulfur

Soil sulfur can be used to lower the pH level in excessively alkaline soils or correct a soil sulfur deficiency. To raise soil acidity, simply add this pelletized elemental sulfur to your lawn or garden. Benefits of soil sulfur: Increases soil acidity Decreases soil pH Provides a cost-effective and easy-to-apply solution

Best for: Lawn & turf soil biology

$24.00
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Numbers, not promises.

These results are from superintendents running organic soil programs on USGA-spec greens and bermuda fairways.

20-40%
CEC increase
Humic acid research, Soil Science Society of America
15-30%
Better infiltration
USGA-spec green superintendent trials
15-25%
Less irrigation
USGA Green Section Record, field data
Yr 3
Input cost breakeven
Superintendent program cost analysis

Three steps. Not a sales pitch.

We don't ask you to overhaul your maintenance program. We ask you to test one thing on one green.

1

Call Philip and tell him about your course.

What's your rootzone mix? What are your infiltration rates? What problems keep coming back despite your current program? He'll listen first and build a plan around your greens.

2

Test on one green, one season.

No commitment beyond that. No contract, no minimum order. Pick your worst green and let the soil biology tell the story.

3

Measure the difference.

Pull your soil tests. Check your infiltration rates. Watch the ball roll. If the numbers move, you'll know it. If they don't, we'll shake hands and part ways.

We know what you're thinking.

Superintendents ask tough questions. Here are the straight answers.

What organic products improve golf course turf health?

Humic acid soil conditioners and biological soil activators enhance soil biology and create firm, true-rolling putting surfaces. These treatments increase cation exchange capacity (CEC) by 20-40% in sand-based rootzones and feed beneficial microorganisms that support healthy turf root systems.

Can liquid aeration replace mechanical aeration on golf courses?

Liquid aeration products improve soil porosity and oxygen diffusion rates without the surface disruption of mechanical coring. They do not fully replace traditional aeration, but most superintendents report extending core aeration intervals from 2-3 times per year to once annually while maintaining USGA-spec infiltration rates.

How much does an organic turf program cost compared to conventional?

Organic turf programs typically cost 15-20% more than conventional programs in the first year due to biological product inputs and transition management. By year 2-3, input costs equalize as soil biology reduces the need for synthetic fertilizers and fungicides. Most superintendents report breakeven by year 3 with lower long-term chemical spend.

How does biochar improve soil structure on golf courses?

Biochar soil amendments create a permanent carbon matrix that improves water retention 15-20% and nutrient holding capacity in sand-based greens. The porous structure (surface area of 200-400 m²/g) resists compaction while providing habitat for beneficial microbes that cycle nutrients and suppress root pathogens.

What application rates should I use for humic acid on bermuda greens?

Apply humic acid at 2-4 oz per 1,000 sq ft every 2-4 weeks during the active growing season. On sand-based USGA-spec greens, use the lower end of the rate range (2 oz) to avoid excessive organic matter accumulation. Reduce frequency to monthly during dormancy or overseed transition periods.

Will my members notice a difference during the transition?

Most superintendents report no visible quality drop during transition when products are introduced gradually alongside existing programs. Start by replacing one synthetic input at a time — typically the soil conditioner first. Members notice when greens get better, not when the chemistry changes underneath.

Can organic amendments improve water retention on sand-based greens?

Yes. Humic substances increase CEC in sand rootzones from a baseline of 1-3 meq/100g to 5-8 meq/100g, which directly improves water-holding capacity. Superintendents using humic acid programs on USGA greens typically report 15-25% reductions in irrigation volume while maintaining consistent moisture profiles at the 4-6 inch root depth.

Your greens won't wait. Neither will we.

One conversation about your course. Philip's on the other end of this number.

Call Philip — he'll answer.

Prefer text? Message Philip at 800-608-3755
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