Rosy
Performance Biochar Line

Upgrade your media. Don't replace it.

Four biochar amendments engineered to integrate into your existing substrate and permanently improve its structure, biology, and nutrient retention.

Every amendment in the Rosy line starts with performance biochar as the structural foundation. What changes across the four products is the biological load, the nutrient charge, and the target stage in the crop cycle. All four ship pre-inoculated. None require adjustments to your existing fertility program.

The Line

One foundation. Four configurations.

Select by crop stage, biological activity required, and integration scale.

No. 01

RS-Core

Charged with Structure

RS-Core bag

The structural foundation amendment. A blend of performance biochar and OMRI-listed compost designed for large-scale media integration.

The biochar establishes a permanent porous skeleton in peat or coir-based media. The compost stabilizes the C:N ratio and inoculates the biochar, eliminating nitrogen drawdown risk. One integration is permanent, the skeleton does not degrade across crop cycles.

Inputs
Performance biochar, OMRI-listed compost
Integration rate
10–20% by volume
AFP
35–45%+ (vs. 5–15% in standard compost)
Stability
Permanent (1,000+ years)
Format
Bulk only (~20–40 yard minimum)
Best for
  • → Commercial greenhouse production
  • → Large-scale raised bed and container operations
  • → Operations mixing media at cubic-yard scale
No. 02

RS-Core Bio

Charged with Life

RS-Core Bio bag

The living foundation amendment. Same permanent biochar skeleton as RS-Core, with premium worm castings replacing compost as the inoculant.

Worm castings provide a denser biological load and a broader spectrum of microbial diversity than compost alone. The result is a substrate that builds biological activity faster and supports more complex living soil programs without sacrificing structural integrity.

Inputs
Performance biochar, premium worm castings
Integration rate
10–20% by volume
AFP
35–45%+ (vs. 5–15% in standard compost)
Stability
Permanent (1,000+ years)
Format
Bulk only (~20–40 yard minimum)
Best for
  • → Living soil and craft production programs
  • → Propagation and transplant environments
  • → Operations where biological diversity is a primary input metric
No. 03

RS-Charge

Charged for Performance

RS-Charge bag

The nutrient battery amendment. Performance biochar pre-charged with a stabilized mineral and organic nutrient profile including compost, worm castings, and Charkashi.

Biochar functions as a nutrient capacitor, holding cations that would otherwise leach under heavy irrigation cycles. Charkashi, a biochar-bokashi ferment, accelerates microbial load and activity beyond what compost alone provides. The result is consistent nutrient availability across the full growth cycle with reduced input frequency.

Inputs
Performance biochar, compost, worm castings, Charkashi, mycorrhizae
Integration rate
5–10% by volume
AFP
35–45%+
Stability
Permanent
CEC
3–4× standard peat-perlite
Format
2 yd Super Sack · Bulk per yard
Best for
  • → High-value ornamentals
  • → Vegetative cannabis and early establishment
  • → Tee box and root zone media upgrades
  • → Operations managing nutrient leaching under high-frequency irrigation
No. 04

RS-Charge Pro

Charged for Peak Output

RS-Charge Pro bag

The high-output amendment. The full RS-Charge biological load plus kelp, alfalfa meal, and seabird guano (3-2-1 NPK formulation) for maximum slow-release nutrient reserve.

Designed for the back half of a crop cycle where nutrient demand peaks and media structure is most likely to have degraded. The biochar skeleton maintains gas exchange and microbial habitat while the kelp, alfalfa, and guano charge sustains output through finishing.

Inputs
Performance biochar, compost, worm castings, Charkashi, kelp, alfalfa meal, seabird guano, mycorrhizae
Integration rate
5–10% by volume
AFP
35–45%+
Stability
Permanent
Format
2 yd Super Sack · Bulk per yard
Best for
  • → Flowering and finishing cycles
  • → Premium craft cannabis production
  • → High-stress turf recovery and establishment
  • → Any crop where late-cycle performance matters
Logistics & Formats

Pre-inoculated. Ready to integrate.

  • RS-Core and RS-Core Bio: Bulk only. Minimum order approximately 20–40 yards. Full truckload approximately 60 yards.
  • RS-Charge and RS-Charge Pro: 2 yd Super Sack and bulk. Trial samples available in 1 cu ft format.
  • FOB Origin (CA, MO, or OR). Buyer pays freight.
  • MOQ: 1 Super Sack or minimum bulk order. Lead time: 5–7 business days after confirmation.
  • Liftgate available on request for additional fee. Receiving: forklift or loading dock required.
Where it fits

See how each amendment performs in your operation.

The product data is one thing. How it applies to your specific crop, cycle, and media setup is another. Pick your operation below.

Golf & Turf

RS-Charge and RS-Charge Pro for root zone performance, tee box establishment, and compaction reduction.

See the turf application and trial structure

Cannabis

All four amendments for soil and outdoor operations. RS-Core and RS-Core Bio for large-scale media mixing. RS-Charge Pro for the flowering cycle.

See the cannabis application and trial structure

Commercial Greenhouse

RS-Core and RS-Core Bio at 5–20% into existing peat or coir-based production media. Priced and specified for bulk integration at commercial scale.

See the greenhouse application and trial structure

Not sure where to start?

Tell us your crop, your current media, and what you are trying to fix. We will tell you which amendment fits and what a trial looks like.