Soul LBS, 9 lb

Soluble Phosphorus-Potassium Flower Booster, NPK 0.5-40-30, 9lb

Late flowering is when a plant's phosphorus and potassium draw peaks, and a standard base fertilizer often can't push those two numbers as high as a dedicated bloom booster can. Soul LBS is a soluble additive built around an NPK of 0.5-40-30, drawing its phosphorus and potassium from potassium nitrate, monopotassium phosphate, and potassium sulfate, with copper sulfate and zinc sulfate rounding out a proprietary micronutrient blend.

This 9lb package fits larger indoor gardens or small commercial rooms dosing LBS across many flowering plants per cycle.

Key Features & Benefits

• NPK 0.5-40-30 formula — a soluble, phosphorus-and-potassium-heavy ratio built for late bloom
• Proprietary micronutrient blend — copper sulfate and zinc sulfate layered onto the primary N-P-K inputs
• Bacillus subtilis & sucrose — feeds root-zone biology with a sugar source rather than minerals alone
• Balanced program compatible — mixed into an existing primary fertilizer program, not run alone

Who Should Use Soul LBS

Growers running a balanced primary fertilizer program who want an easy-to-dissolve phosphorus and potassium push during the later stages of flowering are the fit for LBS.

About Soul

Soul is Aurora Innovations' specialty-nutrient line, developed by the same chemistry group behind Roots Organics, with LBS built as its concentrated late-bloom phosphorus-potassium formula.

Frequently Asked Questions

What is the NPK of Soul LBS?

0.5-40-30, weighted heavily toward phosphorus and potassium for the flowering stage. It's an additive input, not a complete base fertilizer on its own.

What is it made from?

Potassium nitrate, monopotassium phosphate, and potassium sulfate supply most of the phosphorus and potassium, while copper sulfate and zinc sulfate round out the micronutrient blend. Bacillus subtilis and sucrose are included separately to support root-zone biology.

How should Soul LBS be used?

Mix it into a balanced primary fertilizer program during flowering, in soil or soilless media. It's meant to supplement an existing base feed rather than replace it.

What does the sucrose do?

It acts as a sugar source for Bacillus subtilis and other root-zone organisms, feeding biology that helps the plant take up nutrients. That's what separates LBS from a plain mineral-salt bloom booster.

When during flowering should I start?

Most growers introduce it once flowering is clearly underway and phosphorus-potassium demand is climbing, continuing through the later bloom weeks. Check a full feeding chart for exact week-by-week rates.