Soul Soilless Growing Mix

Soul LBS. is a soluble flower booster formulated by Aurora Innovations and distributed by BFG Supply. It delivers targeted phosphorus, potassium, and micro-nutrients to flowering plants, while simultaneously feeding root-zone biology with a sucrose sugar booster. It is designed for soil and soilless grows and is intended to be run alongside a balanced primary fertilizer program such as the Soul nutrients line.

Soul LBS. Specifications

Soul LBS. is a dry soluble bloom supplement. The table below lists the key specifications derived from product documentation and the canonical product record (SKU: AURSSLBS3).

Specification	Value
Product Name	Soul LBS. Bloom Booster
SKU	AURSSLBS3
Brand	BFG Supply / Aurora Innovations
Format	Dry soluble powder
Weight	4.5 lb (4.4996 lb per manifest)
Primary Nutrients	Phosphorus (P), Potassium (K)
Additional Inputs	Proprietary micro-nutrients, versatile organisms, sucrose sugar booster
Application Stage	Flowering / Bloom
System Compatibility	Soil and soilless / hydroponic
Recommended Use With	Soul nutrients primary fertilizer line

Why Choose Soul LBS. Bloom Booster

Soul LBS. takes a dual-track approach to bloom supplementation that distinguishes it from single-input PK boosters. Rather than delivering phosphorus and potassium alone, it also feeds the living biology in your root zone, helping the microbial population process nutrients more efficiently during the critical flowering window.

Here is what growers get with Soul LBS.:

• Targeted soluble nutrition: Phosphorus and potassium in an easy-dissolving soluble form mean quick uptake during bloom without the need for lengthy pre-mixing.
• Proprietary micro-nutrient blend: Key micro-nutrients are included to prevent flowering-stage deficiencies that can limit final yields even when macros are adequate.
• Root-zone biology support: Versatile organisms are incorporated to supplement the microbial ecosystem already present in soil or soilless media, supporting nutrient cycling when plants need it most.
• Sucrose energy boost: A sucrose sugar booster feeds the beneficial organisms directly, helping sustain biological activity through the high-demand bloom phase.
• Dual-system flexibility: Formulated to work in both soil and soilless applications, so you are not locked into a single growing method.

For growers already running a Soul primary fertilizer program, Soul LBS. is designed to slot in as a complementary supplement rather than a standalone product, meaning the nutrient ratios are calibrated for use within that system.

Best Uses for Soul LBS. Bloom Booster

Soul LBS. is most useful during the flowering and fruiting stages of plant development when phosphorus and potassium demand peaks. Below are the primary use cases supported by the product description:

• Bloom supplementation in soil grows: Add to a soil-based program during the transition to flowering to provide additional P and K as plants shift energy toward bud development.
• Soilless and hydroponic bloom phase: Dissolves cleanly in reservoir water, making it practical for NFT, DWC, and recirculating systems where undissolved particles can clog drippers.
• Root zone biology programs: Growers running living soil or compost-tea programs can use Soul LBS. to feed and maintain microbial populations alongside targeted bloom nutrition.
• Yield-focused finishing runs: Works as a supplement through mid-to-late flower to maintain nutrient levels and keep the biology active during the high-energy final weeks of bloom.
• Paired with Soul primary nutrients: The formulation is explicitly designed to complement Soul Grow and Soul Bloom base nutrients, providing an integrated program from a single brand.

If you are looking to support root-zone microbial health alongside flowering nutrition, products like Advanced Nutrients Tarantula and Earth Juice Hi-Brix Molasses serve a similar role in other nutrient lines and can give you a useful comparison point when evaluating where Soul LBS. fits in your program.

Soul LBS. vs Similar Bloom Boosters

Most PK bloom boosters on the market focus exclusively on raising phosphorus and potassium levels during flower. Soul LBS. differs in that it explicitly incorporates root-zone biology — versatile organisms and a sucrose energy source — into the same product. This means you are not just delivering macro-nutrients; you are also supporting the microbial ecosystem that helps your plant access them.

By contrast, single-input PK concentrates (liquid or soluble) typically require you to source biological additives separately, which adds cost and complexity. Growers who prefer a simplified bloom program may find Soul LBS. consolidates steps that would otherwise require two or three separate products.

The trade-off is that Soul LBS. is calibrated to work within the Soul nutrients ecosystem. Growers running a different primary nutrient brand may need to evaluate whether the overall P and K ratios align with their existing program before adding it. As always, monitor EC and pH after adding any bloom supplement to confirm you are staying within your target range.

For root biology support specifically, a product like Heavy 16 Roots is another option worth comparing if biology is your primary objective rather than the PK top-up.

Compatibility

Soul LBS. is formulated for use across a range of growing environments:

• Soil: Compatible with standard potting mixes and amended living-soil beds. The biology component is particularly relevant in soil where microbial populations are already established.
• Soilless / coco: Dissolves in irrigation water and can be applied to coco coir and other soilless substrates without issue.
• Hydroponic reservoirs: The soluble powder format makes it suitable for recirculating systems, though growers should pre-dissolve in warm water before adding to reservoir to ensure full dissolution.
• Primary nutrient pairing: Designed to be run alongside a balanced primary fertilizer program. The manufacturer specifically references the Soul nutrients line as the intended partner program.

Soul LBS. should not be used as a standalone fertilizer. It is a supplement intended to work alongside a complete N-P-K base. If your primary nutrient line already provides elevated P and K during bloom, measure your baseline EC before adding Soul LBS. to avoid over-supplementation.

Dosing Guidelines

The canonical product record does not include a specific milliliter-per-gallon dose rate for Soul LBS. The following steps reflect standard practice for soluble bloom supplements in this category. Always refer to the manufacturer feed chart or contact BFG Supply directly for confirmed dose rates specific to your crop and system.

1. Begin application at the start of the flowering transition, once plants have completed stretch and are setting early bud sites.
2. Measure the recommended dose per gallon or litre using a calibrated scale or measuring spoon. For soluble powders, weight-based measurement is more accurate than volume.
3. Pre-dissolve the measured powder in a small volume of warm water (around 20–25°C / 68–77°F) and stir thoroughly before adding to your reservoir or feed tank.
4. Add the pre-dissolved solution to your base nutrient mix after your primary fertilizer is already dissolved and pH-adjusted to your system range (5.8–6.5 for hydroponics; 6.0–7.0 for soil).
5. Check EC after adding Soul LBS. to confirm the total nutrient concentration remains within your target range for the flowering stage.
6. Monitor plants for the first 24–48 hours after first application. Adjust dose rate up or down in subsequent weeks based on plant response, leaf color, and runoff EC readings.

Because Soul LBS. includes biology, avoid mixing with products containing fungicides, bactericides, or other biocides that could negatively affect the organisms in the formula.

How to Add Soul LBS. to Your Feed Program

Integrating Soul LBS. into an existing nutrient program takes a few straightforward steps. These instructions cover a typical recirculating or hand-water application:

1. Confirm bloom timing: Verify plants are in active flowering before introducing Soul LBS. Using a PK booster during vegetative growth provides little benefit and may create nutrient imbalances.
2. Prepare your base feed: Mix your primary fertilizer (Soul Grow/Bloom or equivalent) into your water first. Adjust pH and check EC before adding any supplements.
3. Pre-dissolve Soul LBS.: Scoop the measured quantity of Soul LBS. powder into a separate cup or container. Add warm water and stir until fully dissolved with no visible powder remaining. This prevents clumping in the reservoir.
4. Add to feed tank or reservoir: Pour the dissolved solution into your prepared feed tank. Stir or circulate for 1–2 minutes before checking final pH and EC.
5. Apply to plants: Water or irrigate as normal. For soil grows, allow slight runoff so you can monitor runoff EC. For reservoirs, maintain recirculation to keep the solution homogeneous.
6. Log and monitor: Note the dose rate and EC in your grow log. Compare week-over-week to detect any drift in nutrient uptake and adjust the next application accordingly.

Sources & Further Reading