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Grower's Secret Professional

Regular price $43.99 USD
Regular price Sale price $43.99 USD
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Shipping calculated at checkout.

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Increase Uptake Efficiency and Optimize Crop Performance

Grower's Secret Professional (GSP) is a highly concentrated organic (OMRI, CDFA, OIM approved) plant growth enhancer processed from a liquid culture of an edible mushroom grown in a mixture of pineapple juice, papaya puree, and molasses.  

Using 2-4 drops per gallon of water, you can:

  • Germinate seeds 
  • Root clones
  • Increase nutrient and water uptake
  • Increase size and quality of fruit/flower
  • Shorten crop cycles

Read the studies we've conducted on Grower's Secret Professional.

To increase uptake efficiency and optimize crop performance be sure to use it in combination with plant fertilizers and supplements.

NOTE: Bottles with dropper tips need to have the dropper opened by piercing the plug in the tip before use.  It was placed there to prevent pressure changes and leaks when shipping. Vigorous agitation also helps before use. 

Total Nitrogen (N) 0.35%
0.01% Ammoniacal Nitrogen
0.34% Other Water Soluble Nitrogen
Available Phosphate (P2O5) 0.05%
Soluble Potash (K2O)  1.0%


Info Sheet


Shipping Policy

Upon receipt of this Sales Order, Seller, in its sole discretion, shall determine the “Shipment Date,” and shall notify Buyer thereof. Seller (a) shall use commercially reasonable efforts in the ordinary course of its business to effect deliveries by the Shipment Date, but shall not be liable for any damage, direct, incidental, consequential or otherwise, arising from failure to meet the Shipment Date; (b) may make partial shipments as Products become available for shipment. Partial shipment shall not relieve Buyer from accepting the remainder of the order; and (c) shall have sole discretion to select the carrier and method of shipment. Shipment shall be F.O.B. Origin (Antioch, CA; Honolulu, HI); title and risk of loss shall pass to Buyer at the time of Product delivery to the carrier. Claims for loss or damage in transit must be filed by Buyer with the carrier. All ordered products must be shipped directly to the Buyer and all shipping documents must reflect direct shipment. There shall be no transshipment unless expressly authorized in writing by Seller prior to shipment.


Disclosure: Buyer assumes all responsibility for safety and use not in accordance with label directions. The rate may vary depending on application (soil or foliar), plant type, needs, plant size, soil conditions, and other products being applied. Consult with a PCA for crop specific needs.

Pure & Proven, Reducing Your Risk

Farmers choose Grower's Secret every season because of the success we can bring them. Working together, we can grow your business.

  • Field Trials

    Grower's Secret has conducted 3rd party research to prove the trustworthiness of our products. Read how effective our products are in the fields.

    Learn More 
  • Organically Certified

    Our fertilizers are OMRI listed and CDFA approved so you can trust our standards are safe.

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