Royal Gold: Fulvic Acid

Brand: Future Harvest

Product Code: FHD-0300121

Availability:In stock

$19.49 19.49

Available Options


The full benefits of Royal Gold are too numerous to list, but simply put, this interesting plant additive increases nutrient uptake in plants. Royal Gold changes fertilizer salts on a molecular level and makes them more bioavailable to the plant, a kind of digestion aid. 

Amongst Royal Gold's many other benefits are: the elimination of waste from the plant, almost like a detox, making the product taste better, it helps in drought or under watering situations, and increases resilience to stressful temperature fluctuations - both of which are common problems with indoor crops.

Research suggests that under watered plants recover quicker with applied Royal Gold because of increased enzyme and antioxidant activity, and the plants also cope with a lack of water better.

It also became evident that the growth and quality of normally well watered plants improves when Royal Gold is used all the way through the plants cycle.



Available sizes shown from 500mL, 1L, 4L, 10L, 20L, 208L, totes of Royal Gold


Key Features:

  • Royal Gold increases nutrient uptake meaning growers retain optimal levels of expensive P-K additives with better results.
  • Excellent value because of low dilution rate, only 2ml per liter.
  • Can be used on all crops and in any medium, system, or situation.
  • Use as a nutrient add-on or as a foliar application for instant results.


Future Harvest Royal Gold Guaranteed Analysis


Product Comparison:

  • General Hydroponics: Diamond Nectar
  • Green Planet: GPF
  • GroTek: LXR Gold



    Use 8mL per 4L as an addition to your nutrient solution.

    Foliar Spray:
    8mL per 4L








    Customer Reviews

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    The Future Harvest online store ships all over Canada and the United States from Canada. We also have a distributor in the United Kingdom, The Growers Wholesale. CLICK HERE for a list of our distributors. 

    All orders are processed within 1 business day.

    Your order will be marked as fulfilled from the moment it’s been boxed up in the warehouse awaiting for the courier to pick it up. Once your order has been fulfilled, you will receive an email with your tracking number. Your tracking details will appear once the courier has processed the package.

    We deliver packages through the following couriers: Canada Post, UPS, Canpar, and Purolator. The courier will be chosen based on the fastest estimated shipping time. 

    We currently only ship to PO Boxes across Canada via Canada Post. If you enter a PO box for a US order, we will contact you to provide an alternative delivery address.





    In Canada, we offer free shipping over $100 CAD before tax. In the United States, we offer free shipping over $150 CAD. 



    All Future Harvest online orders will be shipped out in branded boxes. If you would like discreet shipping, simply request for it in the shipping notes section on the cart page. 



    Shipping Times
    British Columbia 
    2-3 business days 
    & Manitoba 
    3-5 business days 
    Ontario, Quebec,
    Newfoundland & Labrador,
    & PEI 
    3-7 business days 
    USA 7-15 business days 



    Nutrients can freeze when exposed to cold temperatures. We protect your packages by shipping liquid nutrients with heat packs and faster shipping methods during the winter months. Depending on courier, your package may not be sent out until the following Monday to ensure it does not sit in a cold warehouse over the weekend. If your nutrients freeze, simply mix the entire bottle with an equal amount of hot water (preferably reverse osmosis or distilled water) and double your dosage. For detailed information CLICK HERE

    Occasionally, our online inventory is inaccurate. In the case we cannot fulfill your order due to an item being out of stock, we will contact you within 24 hours whether to cancel the order or wait for the item to be back in stock. 

    We reserve the right to cancel & refund any order where we cannot economically ship to. If this happens you will be refunded in full and notified of the issue. 


    Refund Policy


    Our policy lasts 30 days. If 30 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.

    To be eligible for a return, your item must be unused and in the same condition that you received it. 

    To complete your return, we require a receipt or proof of purchase.

    Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

    If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.

    Late Refunds
    If you haven’t received a refund yet, first check your bank account again.
    Then contact your credit card company, it may take some time before your refund is officially posted.
    Next contact your bank. There is often some processing time before a refund is posted.
    If you’ve done all of this and you still have not received your refund yet, please contact us at

    We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at and send your item to: 725 Evans Court, Kelowna, British Columbia, CA, V1X 6G4.

    To return your product, you should mail your product to: 725 Evans Court Kelowna British Columbia CA V1X 6G4

    You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the original cost of shipping will be deducted from your refund, unless you the customer paid the original shipping.

    Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

    If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.



    Ask a Question
    • I run an aeroponic/sprinkler system. Is this considered organic and if so will it create organic related problems that are common in hydroponics?

      Royal Gold is not organic. Our two organic certified additives at this time are Organical Magic and Royal Black. Royal Black is not recommended for hydroponics.

    • Can you use this as a foliar spray with fish and sea weed fertilizer (Neptune harvest). Currently I’m mixing both in soil and I’m amazed by the results. It’s magic!!

      Royal Gold can be used as a foliar spray! We recommend mixing it at 2mL per litre. Glad you're enjoying the product! Remember to never spray the buds directly.

    • Hey thanks for answering. I was wondering could I do 2 tsp or 8 ml foliar feed with my normal 1/2 tsp B12 or would I recommend going on the lighter side and 4 ml. I want to go on the big side I'm running CO2 and 1300 ppm with feed flush and they look perfect. All your nutrients. Also I oh to 8.0 for foliar to automatically kill and mold or powdery mildew and use ozone water post foliar feed as well as organic pesticides. I really like your products I'm reaping the rewards of using them right now and In growing colas the size of my arm.

      That dosage shouldn’t be too heavy, but to be sure just try it on one plant and see what it does while you give the rest the recommended feeding. If after 2 or 3 days everything is okay with that single plant go ahead and switch them all over.

      Always remember that too much of a good thing can be harmful and we always recommend to our customers to be a little on the cautious side, especially when everything is going so good.

      Thanks for the questions

    • Hey when foliar feeding B12 should I add this to the mixture or spray it separately? I figured since it's supposed to help uptake nutrients it might also work through the stomata? Follow up what dose do you use for foliar feeding with royal gold?

      Hello Ryan. Great question.
      They are fine added together, use Royal Gold at 2 ml per liter. 
      Be sure to check the pH of the solution as RG is a bit on the acidic side.

      If you have any other questions please let us know,

    • Hi been using your brand for around a year. So grow micro bloom at the correct dose bring my ec/ppm quite hight. I also have superb, Royal gold, carbo blast, calnesium Pluss say ton of bud for instance depending on the week of flower. Its impossible to add all my nutrients and additives at the recommended doses as ppm is shy high. Iv been reducing grow micro and bloom ro around half of recommended dose to be able to get in some addatives. Is this fine? Or do I... Feed1) do a feed of grow micro bloom Feed2) A feed of addatives Feed 3)Then a flush as my 3rd feed as I'm doing 3 feeds a week. Or is it the case of putting a bit of nutrient in here and there. 100l drum as res finding myself removing feed to try water it down even when at a reduced dose. Ec of water is 0.1 so the water isn't harsh. Thanks

      Hi Arran, thanks for reaching out.

      Our grow technicians advise that you half the dosage of your base nutrients with full doses of the additives (because they don't add much to the EC). From there you can simply scale up if you feel your plants need more nutrients.Just keep monitoring your plants, as you already are, for any signs or deficiencies and your plants should be good. No need to worry about depriving your plant by halving the dosages unless there are any deficiencies noticed.Each grow is it's own thing, so the feed schedules we use are simply a general recommendation to start from. From there you can tailor it to your specific grows needs.Have a fantastic week!