Shogun Fertilisers - PK Warrior 9/18


Size: 1 Litre
Sale price£19.95

Shogun Fertilisers - PK Warrior 9/18 5 litre

If you’re looking to produce awe-inspiring fruits, then you’re going to need a quality PK booster – and they don’t come much better than PK Warrior 9/18. PK Warrior contains phosphorus and potassium (two essential macronutrients) at the right ratios to trigger explosive growth during the most crucial stages of development.

How Shogun PK Warrior 9/18 Works

The team at Shogun set out with a simple, yet highly ambitious brief: to create the most effective nutrient range on the market for a price that’s affordable to every grower. It was a task that required extensive research and development, but after numerous side-by-side tests and detailed analysis of other leading plant nutrition products, they’ve managed to deliver a range that sits proudly alongside the very finest high-end nutrient lines, and at a fraction of the cost. Connoisseur growers often select flagship nutrients from various companies and combine them to create their ideal nutrient regimen. With Shogun, you can achieve the same effect by simply sticking to their complete range, knowing that each component product has been formulated to compete with the very best alternatives available.

Shogun Pk Warrior contains a patented nutrient system called SmartZEN (used under license). SmartZEN is a new discovery in the world of plant nutrition. This product provides a myriad of benefits including: improved germination and emergence, enhanced root and root hair growth, increased chlorophyll density, greater nutrient uptake and availability, promotes plant health, mitigates abiotic stress, increases yields and improves crop quality. SmartZEN represents the cutting-edge in plant-feed technology. At the time of writing, Shogun has the exclusive license to use SmartZEN in the UK and Europe. This makes this product unique and also the very best PK Booster that money can buy!

Shogun PK Warrior is a flowering additive that is used alongside your base nutrient to increase levels of phosphorus and potassium (two primary macronutrients) during the later stages of the bloom phase, when your plants need them most. Unlike many other PK boosters on the market, PK Warrior has a ratio of 9/18: for every 100 parts of undiluted feed, 9 parts are phosphorus and 18 parts are potassium. Whereas most PK boosters are used for relatively short periods of time around three weeks before harvest, this product can be used effectively from week 4 of the flowering phase right up until the final flush, 1-2 weeks before the finish. The effects are nothing short of miraculous – PK Warrior stimulates essential oil production to the point where there’s a huge visible increase in density. We highly recommend supplementing with Shogun Silicon and Calmag to increase the structural strength of stems and branches accordingly – otherwise, they may well struggle to support the weight!



Your choice of size of Shogun PK Warrior 9/18 (choose your size above)


  • Shogun – world-beating nutrients with world-beating price tags
  • Cost-effective, concentrated formula
  • PK Warrior - Developed by a leading biochemist
  • Contains the cutting-edge technology SmartZEN patented nutrient system
  • Increases the density of fruits and flowers
  • Supplies essential primary macronutrients
  • Adds weight to the final product
  • Highly effective in any medium or system

How To Use

How to use Shogun PK Warrior 9/18:

Shogun PK Warrior can be used from the fourth week of the flowering phase, right up to final flush (1-2 weeks before harvest time). Shogun recommend reducing the concentration of your base nutrient by 25 – 50% and adding PK Warrior at a rate of 0.5ml per litre of nutrient solution.

If you are using Shogun Dragon Force during the week prior to flushing, then you should stop using PK Warrior and make a straight switch. Don't use both products at the same time. For more information, please see the separate Dragon Force listing.

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.

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