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Certified Compost

Screened, tested, and verified through the U.S. Composting Council’s STA program.

What Makes Our Compost Different

Parker Bark certified compost is produced from aged, wood fines, never manure-based inputs or food waste streams. We age, monitor, and screen our compost to ensure consistency season after season.

Unlike many compost options that rely on mixed consumer inputs, our material is engineered for professional performance—landscapes, nurseries, turf, and restoration. The result is a stable, predictable organic amendment that transforms soil.

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Material Specs

Our certified compost is screened and independently lab-tested, making it safe for landscapes, turf, horticulture, and public spaces.

  • Screened compost
  • Stable, mature, and lab-tested
  • No food waste
  • No biosolids
  • No sewage sludge
  • No fecal material
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U.S. Composting Council STA Program

The Seal of Testing Assurance (STA) program verifies product quality through independent laboratory analysis. Certified compost is tested regularly to validate performance, stability, and safety.

Our compost is regularly tested for:

  • Maturity & stability
  • Nutrient content (NPK)
  • Salinity
  • pH balance
  • Particle consistency
  • Heavy metals
  • Physical contaminants

How Our Compost Performs

Ideal for:

  • Soil conditioning
  • Landscape installation
  • Turf establishment & renovation
  • Tree planting & backfill
  • Garden and vegetable beds
  • Large-scale remediation and restoration
  • Erosion control & slope stabilization

Benefits:

  • Improves soil structure
  • Increases water retention in sandy soils
  • Improves drainage in compacted soils
  • Boosts microbial and root activity
  • Reduces reliance on synthetic fertilizers during establishment
  • Enhances nutrient availability

Application Guidance

Practical, job-site tested recommendations:

Trees & Shrubs

• Backfill using a 50:50 compost/native soil blend
• Apply 2–3 inches around plantings, extending 6″ beyond the drip line
• Avoid “volcano mulching”—leave the base of the plant clear

Flowers & Vegetable Gardens

Mix 2–3 inches of compost into the top 6 inches of soil before planting.

Containers & Raised Beds

Fill with a 30% compost / 70% potting mix blend for best growth.

Landscape Mulch Layer

Spread 2–3 inches around plants to:
• Prevent erosion
• Conserve moisture
• Naturally suppresses weeds

Turf Establishment

Incorporate 2–3 inches into the top 6 inches of soil before seeding or laying sod.

Turf Topdressing

• Aerate turf, then apply ⅛” (general renovation)
• Up to ½” for cool-season grasses (tall fescue, rye)

Foundations

To improve infiltration and long-term soil function, replace compacted or contaminated fill using a blend of Compost, Sand, and Topsoil.

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Ordering & Delivery

We are a wholesale-only manufacturer. All orders must meet our cubic yard minimums and are intended for professional use.

  • Delivered via tractor trailer or dump truck
  • Single-material loads to maintain quality
  • Lead times vary by season (spring/summer busiest)
  • Serving NC, SC and beyond
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Ready for a Quote? Let’s Talk.

We prefer a conversation—new customers are encouraged to start by calling us directly. You may also complete our Request a Quote form and we’ll call you once it’s received.

Request a Quote

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