Search  for anything...

Botanicare Hydroguard Bacillus Root Inoculant, Quart

  • Based on 3,754 reviews
Condition: New
Checking for the best price...
$29.79 Why this price?
Save $0.27 was $30.06

Buy Now, Pay Later


As low as $7 / mo
  • – 4-month term
  • – No impact on credit to apply
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Zip, Apple Pay, and Google Pay. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Selected Option

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Oct 8
Order within 19 hours and 50 minutes
Available payment plans shown during checkout

Protection Plan Protect Your Purchase
Checking for protection plans...

Size: 1 Quart


Pattern Name: Inoculant


Features

  • Botanicare Hydroguard assists in the decomposition of organic matter in hydroponic gardening
  • Contains bacillus, a natural bacterial root inoculant
  • Helps convert organic matter into nutrients that may be absorbed directly by the roots of a plant
  • Amplifies root mass and vigor
  • Use every time you water during the growth cycle
  • This product is good for 2 years AFTER the date on the bottle and it should be used within 6 months of opening. The date printed on units are in Julien format manufacture date.

Description

Hydroguard is back with a new, clean look and a more powerful, concentrated formula. Hydroguard's reformulation makes it even more effective than before. Its unique formula, available exclusively from Botanicare, contains an isolated form of Bacillus bacteria known as Bacillus amyloliquefaciens. This scientifically isolated bacterium was selected for its superior ability to amplify root mass and vigor, especially in hydroponic gardening, when compared with the more common and well known Bacillus subtilis species. These highly specialized rhizobacteria assist in the breakdown of organic materials, and may increase nutrient availability.

Brand: Botanicare


Item Weight: 2 pounds


Item Form: Liquid


Liquid Volume: 1 quarts


Specific Uses For Product: Gardening,Organic


Brand Name: Botanicare


Model Number: HGC704078


Global Trade Identification Number: 57


Manufacturer: Hawthorne Hydroponics, LLC


Number of Items: 1


UPC: 757900730857


Unit Count: 32.46 Fluid Ounces


Included Components: only product


Item Type Name: Bacillus Root Inoculant


Part Number: HGC704078


Item Form: Liquid


Specific Uses For Product: Gardening,Organic


Coverage: Medium


Target Species: Plants


Item Weight: 2 pounds


Liquid Volume: 1 quarts


EU Spare Part Availability Duration: 2 years


Mixing Ratio: 2 ml/gallon


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Oct 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • It works for me.
Size: 1 Quart Pattern Name: Inoculant
I've used hydroguard for several years in a small hydroponic grow using 5 gal. black buckets. When I get root rot, I lift the root ball our of the bucket and strip off all of the rotted roots by hand and put back in the bucket with new water and hydroguard. I put the water level up to the bottom of the net pot. I have had great luck with the roots coming back nice and white and great production. I also pour some of the water from the top to coat any roots in the net pot. Just my experience. ... show more
Reviewed in the United States on June 14, 2026 by William

  • Best thing for plants
Size: 1 Quart Pattern Name: Inoculant
Amazing product: makes hydroponics much easier. All you need to do is not nutrient burn your plants after adding this stuff. Keep in a cool dry place and will last for years. Also works as a hot composting innoculant with OUTSTANDING results. Literally overnight started cooking the bad guys out of a rotting layer that an arborist had sandwiched between the wood chips they dropped off. ... show more
Reviewed in the United States on May 26, 2025 by One

  • This helped my in-door plants survive 2026 heat wave!!!!
Size: 1 Quart Pattern Name: Inoculant
Been using this for 2 months now, and it has made all the difference with my in-door hydroponic garden during this hot summer heat wave. I was able to keep my thermostat between 78-80, and I used this with each feeding which protected the roots and aided the plant health during this hot spell. Without this, I would have been forced to lower my thermostat back down to 68, like last year, but I avoided that this year because of this Hydroguard. I'm growing all green vegetables, and generally when the in-door temps go much past 70, the plants bolt and wither:, but not this time around! ... show more
Reviewed in the United States on July 24, 2026 by gladlenise

  • Great for my automated watering system
Size: 1 Quart Pattern Name: Inoculant
Works great to slow down "stuff" from growing in the tanks of my automated watering system. It won't prevent it entirely, but stays much cleaner for longer than water alone. And with about 1/2 teaspoon per gallon, a little goes a long way.
Reviewed in the United States on August 20, 2025 by ChrisM

  • Seems helpful
Size: 1 Quart Pattern Name: Inoculant
So it is hard to rate this product. I'm not sure what effect it should have. BUT this is what I have observed. I moved from a bunch of Aerogarden and Salad Box grows to one large integrated system where the water flows from plant to plant. We had a fire, lost the mud room in the rebuild due to budget. I decided one large system would be far more attractive in the public area of the house. After a while, things seemed to stop growing. In addition, I've had more trouble with aphids than ever before. I did research. My reading indicated that it is harder to balance the needs of a variety of plants rather than similar plants in small containers. They recommended a water additive such as this. The claim is that it makes nutrients more available to plants. One week after beginning to use with each watering the plants, especially greens, are growing nicely once again. Literally in two days most of the greens doubled in size. The tomatoes seem to be ripening more quickly. I see no difference in the aphids problem (it is summer and near the main door). Nor any difference in the herbs. I hope this information is helpful to others. ... show more
Reviewed in the United States on July 20, 2024 by Barbara McElroy

  • Plant care
Size: 1 Quart Pattern Name: Inoculant
Makes plants grow better
Reviewed in the United States on August 13, 2026 by NIÑÖ

  • A must for using tap water with enriched soils - if you love your plants, do the right thing.
Size: 1 Quart Pattern Name: Inoculant
Takes the nasty out of tap water. Doesn't mess with pH and plays well with enzymes and nutrients. I have used it for five years, indoors and outdoors, seedlings through harvest, in soil and medium, dwc hydro and waterfall hydro. Since I started using Hydroguard, I have never lost a single plant to root rot. Even in large reservoir circulating hydro setups, a quart goes a long way. Suggested dosage is 2mL to a gallon, so I can run a 27-gallon recirculator for about a year at gal/wk between resets. Just put it on your list if you're an indoor grower, you need it. ... show more
Reviewed in the United States on January 20, 2026 by Jason Gonzalez

  • 10/10!
Size: 1 Quart Pattern Name: Inoculant
If you grow hydroponic plants, just buy it dude.
Reviewed in the United States on June 4, 2026 by Jacob Holderfield

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...