Root Roids can be used to compliment any nutrient program to increase yields and flavor and helps to naturally unlock & retain nutrients for longer. Hydroponic growers can enjoy a 15-25% reduction in fertilizer costs with higher quality flowers, stronger plants, faster growth rates & masses of healthy roots.

Root Roids can shorten the vegetative growth period by 7-10 days due to the massive increases in plant growth with noticable results within 48hrs. It is also perfect for Coco & Soil growers.


How To Use Root Roids

Seedlings & Cutting

  • Use 1/4 teaspoon per litre as root drench once roots appear.

Vegetative Growth

  • 1/2 teaspoon per litre, once per week.

Flowering Growth

  • 1/2 teaspoon per litre, once per week.


  • 1 teaspoon per litre

Foliar Spray

  • 1/2 teaspoon per litre

When growing in Coco stop using Root Roids 1 week before the flush period. When mixing with nutrient solutions, add Root Roids last after the pH of the tank has been adjusted. The pH of the nutrient solution will raise slightly but will buffer over time and does not need to be corrected.

Root Roids Ingredients

Rhizophagus irregularis, Bacillus subtilis, Trichoderma harzianum, Beauveria bassiana, other proprietary microbes and 100% organic based microbe food.

(SKU: 129755)


SKU 129755
Brand Dr Greenthumbs
Warranty Length Limited Warranty
Warranty Conditions Limited Warranty
Shipping Weight 0.10 kg
Type Additives

Limited Warranty - This product has been stored in a controlled enviroment to ensure you will receive the best quality product possible. Due to this reason this product is sold on a strict no refund or return policy, unless it falls under a warranty claim.

Eligible for free shipping *

Free Shipping Eligibility

What is the eligibility for Free Shipping? As long as your delivery address is in our free shipping zone, and your order is above the minimum value for free shipping, your shipping will be free. For full details see our shipping information here.

Delivery Information

Special Order Items - These are items that we do not regularly stock. These items will be ordered specially for you, or dispatched directly to you from our supplier. See the full details here.

Back Order Items - These are items we usually carry in stock but are temporary out of stock. These items will be back in stock within a few days. See the full details here.

Shipping Calculator

This calculator will give you the delivery charges for this product only. Once you place all the items you wish to buy in the cart, the combined shipping price will be shown, including Free Shipping if you are eligible.