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Improve soil already in place

Compost & Amendments

An amendment should answer a diagnosed need. Compost, manure compost, biochar compost, castings and aeration components are not interchangeable.

Choose an AmendmentDiagnose My Soil
Problem-first selection

What problem are you correcting?

Start with the existing soil, symptom and application instead of assuming more compost is always better.

Describe the symptom

Wet, hard, low volume, poor growth, compaction or a known amendment need.

Inspect the soil

Look at the actual profile, water movement and usable depth.

Choose the intervention

The answer may be compost, another amendment, complete soil—or no purchase yet.

Different jobs

Organic matter, manure, biochar and physical structure.

Choose the change the soil needs, then use an appropriate application amount.

Organic matter

Clean Green Compost is a general soil-improvement amendment, not generic complete potting media.

Learn more →

Manure compost

Farmyard Manure is a distinct amendment; it is not simply “stronger compost.”

Learn more →

Biochar compost

Use the inoculated biochar compost path when that specific amendment approach fits.

Learn more →

Mineral / aeration components

Perlite and pumice can affect physical structure but do not automatically repair site drainage.

Learn more →
Products to compare

Amendments for specific changes.

Compare the intended role and current format after identifying the existing-soil problem.

Pumice Rock
Rock & Aggregate

Pumice Rock

Lightweight pumice for soil aeration, drainage and decorative applications.

Bagged · Bulk · From $8.00
View Product
Sand
Rock & Aggregate

Sand

General-purpose bulk sand for landscape, garden and project applications.

Bulk · $50.00
View Product
Keep learning

Use the next guide when you need more detail.

The best next step depends on the decision still in front of you.

Can You Add Too Much Compost?

See why unlimited compost is not automatically beneficial.

Learn more →

What Makes Good Compost?

Look beyond darkness to feedstock, processing, stability and intended use.

Learn more →

Diagnose Before Buying

Work from the symptom and soil profile.

Learn more →
Common questions

Compost & Amendments FAQs

Use the project details—not the broad label alone—to choose the next step.

Can compost fill an entire raised bed?

Do not assume pure compost is the ideal long-term root zone. Use complete soil for most new fill and compost strategically as amendment.

Is manure compost simply stronger compost?

No. Farmyard Manure is a distinct amendment with different characteristics and should be selected for the actual soil and project.

Can pumice fix a wet yard?

Pumice can contribute structure inside an appropriate recipe. It does not create an outlet where site water has nowhere to go.

How much amendment should I use?

Base the amount on the product, soil, area, incorporation depth and verified guidance. Do not assume one universal rate.

Diagnose the soil before choosing the amendment.

If the project needs a complete new root zone, move to Garden Soils instead of forcing an amendment into that job.

Diagnose My SoilBrowse Garden Soils

Use an amendment for an amendment job

Compare compost and soil amendments without confusing them with complete soil.

This category is for current amendment products and formats. Use the soil-improvement path to decide whether the existing site needs an amendment, more complete soil or diagnosis first.

Improve existing soilChoose the intervention around the condition of the current root zone.Read Compost vs. SoilSee why more compost is not automatically the better answer.Can you add too much compost?Avoid slowly creating an increasingly compost-heavy root zone.
Sand

Sand

General-purpose bulk sand for landscape, garden and project applications.

$50.00
View Product

Quick category questions

Is every listed product in stock today?

Not necessarily. The catalog shows products Specialty Soils offers; current stock, format, lead time and final price are confirmed when you order.

How do I know which material fits my project?

Use Find My Soil for project-based guidance, or compare up to three products before adding them to your material list.

Can I combine products in one project list?

Yes. Add any products to My Materials, enter quantities and notes, then share, print or email the list.

Search by project, material, problem or question.