Humboldt Nutrients - White Widow powder 113g (4oz)


Nutrient Type Beneficials
Size 113g

Humboldt Nutrients - White Widow powder 113g (4oz)

SKU: 190830
£51.95 £41.45

(Out of Stock)
Humboldt Nutrients - White Widow powder 113g (4oz)


Nutrient Type Beneficials
Size 113g

Humboldt Nutrients - White Widow 113g

Humboldt Nutrients - White Widow contains 9 species of mycorrhizal fungi which are very highly concentrated into a soluble powder. The mycorrhizal fungi colonise roots and feed the plant while extending the size of the root-system. For incredible root-growth and health, White Widow is the answer to your dreams.

Beneficial inoculant products greatly increase microbial activity in the root-zone. This increases yield and root-health. For a really flourishing microherd we highly recommend using Ecothrive Neutralise to avoid the chlorine/chloramine in tap water from inhibiting, or even killing, the friendly microbes, For an extra kick, try Ecothrive Charge too!

  • Humboldt Nutrients – Brilliant Californian plant-food expertise!
  • White Widow - A highly concentrated blend of mycorrhizal fungi
  • 9 species of Mycorrhizal Fungi which feed and extend your plants roots
  • Can be used in any grow-medium
  • Can be used in any grow-system
  • Great for the all-natural garden
  • Use with Humboldt Nutrients base nutrients and other boosters for astonishing results

Humboldt Nutrients - White Widow 113g Contains

113 grams of Humboldt Nutrients - White Widow

Recommended Additional Purchases

 - an instant tap water conditioner that nullifies the effects of chlorine and chloramine, maximising the impact of beneficial microbe additives.

How Humboldt Nutrients - White Widow Works

Humboldt Nutrients - White Widow contains a highly concentrated blend of 9 species of Mycorrhizal fungi. White Widow contains many more times the number of "propagules" or spores than most other treatment powders available. Mycorrhizal fungi colonise plant roots, feeding the plant with nutrients and helping to protect the roots in exchange for a little bit of sugar. The mycorrhizal fungi then spread through the grow-medium, creating what is effectively a second set of roots, greatly increasing the root-mass of the plant and the surface area for absorbing water and nutrients. The fungi in White Widow also help protect your plant roots, especially from dry conditions. Don't be surprised to see large furry white roots shooting out of the bottom of containers only a week after transplanting with White Widow. Excellent product.

Using Humboldt Nutrients - White Widow

Key: 0-Unsuitable, 1-Good, 2-Better, 3-Best

Suitability for use with Soil: 3

Suitability for use with Coco: 3

Suitability for Drain to Waste Hydro: 3

Suitability for Recirculating Hydro: 3

Suitability for Foliar Feeding: 0

Advanced Nutrients equivalent products: Piranha

Humboldt Nutrients - White Widow is for use with plants grown in any medium and in any type of grow-system. White Widow is mainly used throughout the veg cycle and into the first week of flowering to produce a thriving root-zone ready to power a heavy blooming cycle.

The water that you begin with can have a large impact on your results. Humboldt nutrients recommend un-chlorinated water which is oxygenated before and during use. To achieve this, Humboldt Nutrients themselves use Reverse Osmosis water which has been "bubbled" well with an airpump and airstone before use and while it is in the reservoir.

Make up your nutrient solution as normal with un-chlorinated water. Check the pH and adjust if necessary. Add 0.25 to 0.5 teaspoons of White Widow for every 4.5 litres of feed water and mix well.

As with all nutrients, boosters and additives, never mix them together in their concentrated form (i.e. straight out of the bottle). Always add each nutrient, booster or additive to your reservoir or feed water in turn, giving the solution a good stir to mix it in before adding the next one.

Humboldt Nutrients - White Widow dosage: 0.15 - 0.3 grams/litre