Orca Liquid Mycorrhizae

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Standard Delivery £6.95*
We Will Beat Any Price* We Will Beat Any Price*
Standard Delivery £6.95* Standard Delivery £6.95*
Plain Packaging Used Plain Packaging Used
Product Name Qty Price
Orca Liquid Mycorrhizae - 100ml
Orca Liquid Mycorrhizae - 473ml
Orca Liquid Mycorrhizae - 947ml


Orca is an all-in-one treatment that protects the root zone with a highly concentrated liquid combining four strains of highly effective endomycorrhizal fungi and 11 strains of highly beneficial bacteria.

Endomycorrhizae are the most effective form of beneficial fungi for a typical indoor garden. This variety penetrates the root cells directly, aiding in a greater level of nutrient uptake through a close symbiotic relationship. The beneficial bacteria work together to create a microbial ecosystem in and on plant roots, enhancing plant growth and vigour and warding off pathogenic bacteria and fungi – creating a natural wall of defence for your plants. This strong culture helps to prevent issues like Pythium ruining your crop.

Orca takes advantage of their growth enhancing and yield-boosting properties, giving you the benefits of a better growth period and end result. The formula is highly concentrated, easy to apply and a little goes a long way.


  • Contains mycorrhizal fungi and beneficial bacteria for a natural defence
  • Easy to use and apply
  • Improves nutrient uptake and plant growth
  • Can be used with any medium and system


  • Seeds: Use 1-2 drops directly on seed.
  • Cuttings: Soak starter cubes in Orca at 1-3ml per 4L or water for up to an hour.
  • Hydroponics: Use 5ml per 20L of water every 2 weeks throughout the grow and bloom phase. Stop using 4 weeks before harvest time.
  • Soil, Coco and top feeding: Mix 0.25ml per litre of water, watering into existing plants.
  • Shake well before each use. Do not use alongside hydrogen peroxide products, such as Liquid Oxygen, as the microbes will be killed off before they have the chance to multiply.
Delivery & Returns
Next Day Delivery 12 Noon
Next Day Delivery
In a hurry for your order? Order before 1 pm Mon - Thurs for next working day delivery *subject to stock availability T&C's apply.
Different delivery address?
Different delivery address?
Do your goods need shipping to an alternative address? If so, paying by bank transfer gives you the freedom to have them delivered to anywhere in the UK.
Free Returns
Free Returns
Faulty or damaged item? No problem, contact us on 0800 038 7100 or customerservice@hollandhorticulture.co.uk and we can arrange a free collection.
Click & Collect
Click & Collect
You can now collect your online orders from our Manchester Store. Simply pay online & collect in-store!
Product Details
Brand Plant Revolution

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