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Humbolt County's Own Sonic Bloom flowering booster bottle with yellow powder and green cap.
Humboldt County's Own Sonic Bloom flowering booster powder in a 1lb jar with green lid.
Humboldt County's Own Sonic Bloom flowering booster in a clear plastic jug with a green lid, containing yellow powder.
Humboldt County's Own Sonic Bloom 10lb flowering booster with Vitamin B1, yellow powder.
Humbolt County's Own Sonic Bloom flowering booster bottle with yellow powder and green cap.
Humboldt County's Own Sonic Bloom flowering booster powder in a 1lb jar with green lid.
Humboldt County's Own Sonic Bloom flowering booster in a clear plastic jug with a green lid, containing yellow powder.
Humboldt County's Own Sonic Bloom 10lb flowering booster with Vitamin B1, yellow powder.

Humboldt County's Own Sonic Bloom

Official Humboldt County's Own Dealer Model: ETSB-100G
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 $34.99 USD
  • 0-51-34 NPK ratio makes this the most concentrated dry PK booster available
  • Pharma-grade V-blending ensures every scoop has a perfectly uniform nutrient profile
  • Ultra concentrated formula uses 1 teaspoon per 5 gallons to minimize input costs
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THROUGH THE Cultivator's LENS Hands-On Evaluation

Who This Is For

  • You are switching to a dry PK booster because liquid concentrates lack the potency needed for late bloom mass.
  • You are adding Vitamin B1 to your feed because high-intensity bloom environments often trigger stall-inducing stress.
  • You are consolidating your bloom additives because you want a single formula that handles both density and resin output.

What We Found

  • The powder dissolves surprisingly well for something this potent, leaving almost no grit in the reservoir.
  • We noticed the B1 helps prevent the pale fade that often happens when you aggressively ramp up phosphorus.

What Users Say

  • Users who switched from liquid boosters say they save a significant amount of storage space and heavy lifting.
  • Growers report that stacking this with G10 mid-bloom leads to a noticeable increase in final harvest density.
  • People using this in recirculating systems say the lack of dyes keeps their lines and filters much cleaner.

Humboldt County's Own Sonic Bloom

Give your plants a dose of "Powdered Sunshine" with Humboldt County's Own Sonic Bloom, the most concentrated PK booster available on the market. With a potent NPK ratio of 0-51-34, this formula provides the massive amounts of Phosphorus and Potassium that plants demand during the flowering cycle to maximize flower development and density. For even greater size and mass, many growers stack this with Humboldt County's Own G10 during the mid-bloom phase. Unlike standard boosters, Sonic Bloom is fortified with 20 times the Vitamin B1 found in popular competitors, helping to mitigate stress while stimulating the production of resinous oils and fragrances in medicinal herbs.

Quality and consistency are paramount in the production of Sonic Bloom. Humboldt County's Own uses pharmaceutical-grade Patterson/Kelly V-Blenders to disperse the ingredients uniformly, ensuring that every teaspoon contains the exact ratio of nutrients required. This powder is designed to be the dry alternative to Humboldt County's Own Crystal Burst; it packs a punch that simply cannot be dissolved into a liquid concentrate. Whether you grow in soil or hydroponics, Sonic Bloom works with all nutrient brands to increase the size and mass of your harvest without the use of dyes or unnecessary fillers.

Features

☀️
"Powdered Sunshine"

The most concentrated source of Potassium Phosphate available for explosive growth.

💊
Vitamin B1 Boost

Contains 20x the Vitamin B1 of other boosters to reduce stress and support metabolism.

💥
0-51-34 Ratio

Delivers high levels of Phosphorus and Potassium essential for peak flowering.

🧪
Pharma-Grade Mix

Blended with pharmaceutical precision to ensure perfect nutrient uniformity in every scoop.

💧
Ultra Concentrated

Requires only 1 teaspoon per 5 gallons of water, offering incredible value.

🚫
No Dyes

Formulated without artificial dyes to keep your reservoir and plants clean.

What's Included

  • 1x Humboldt County's Own Sonic Bloom (Selected Size)

Specifications

Specification Value
Brand Humboldt County's Own
NPK Ratio 0 - 51 - 34
Nutrient Type Dry Powder PK Booster
Additives Vitamin B1
Dosage 1 tsp per 5 Gallons

Directions

  • Soil & Hydro: Add just 1 teaspoon per 5 gallons of water. This is a highly concentrated formula.
  • Timing: Start application when you first see signs of flower development (usually around the 2nd week of bloom) and continue until one week before harvest.
  • Flushing: Stop using Sonic Bloom during the final flush week. However, you can continue to use Humboldt County's Own Snow Storm Ultra, Purple Maxx, and Killer Tea during this time for a final quality boost.
  • Warning: Use Sonic Bloom OR Crystal Burst. Do NOT use both products together.

FAQ

What is the difference between Sonic Bloom and Crystal Burst?+

Sonic Bloom is the powdered version of Crystal Burst. Because the "powdered sunshine" is so concentrated, it cannot be fully dissolved into a liquid concentrate like Crystal Burst. You should choose one or the other, but never use both simultaneously.

When should I start adding Sonic Bloom to my reservoir?+

You should begin applying Sonic Bloom when you first see signs of flower development, which is typically around the second week of the bloom cycle.

Why does Sonic Bloom contain Vitamin B1?+

Sonic Bloom contains 20 times the Vitamin B1 of other popular bloom boosters to help mitigate the stress plants experience during high-performance flowering regimens, ensuring they stay healthy while producing massive yields.

Can I use Sonic Bloom during the flush?+

No, you should stop using Sonic Bloom about a week before harvest. However, you can continue using Snow Storm Ultra, Purple Maxx, and Killer Tea during the flush for improved finish quality.

Is this product compatible with other nutrient lines?+

Yes, Sonic Bloom is designed to work well with all nutrient brands, including both soil and hydroponic systems.

Happy To Help

Questions About This Product?

Our specialists are happy to help. Call us or send a message and we'll get back to you within one business day (most of the time within a few hours.)

Call (360) 800-5535

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