This is a Dutch fertilizer formula for commercial Cannabis production from expert commercial grower Xavier Loubresse. The massive sprawling greenhouses in northern Holland are one of the prime production areas in EU for Cannabis and the production is extremely streamlined to get the best results.

This formula is a one-part complete soluble NPK fertilizer with Calcium & Magnesium included. It is high nitrate, the preferred form of Nitrogen for Cannabis, and has elevated PK to sustain blooming. The microelements are also modified for Cannabis as the nutrient requirements differ slightly from hydroponic requirements of vegetables. 

This fertilizer is meant to be used at the same rate from Veg to Bloom. This is unconventional from many fertilizers. However, this has worked extremely well for the Dutch growers, there is less stress on the plant from fluctuating EC, and the high Potassium allows pre-loading the leaves prior to flowering, giving better larger buds. Typically when flowering the plant is borderline K sufficient which quickly becomes deficient as the K is extracted from the old leaves to support the bloom since the roots cannot supply enough K during this rapid phase; if it becomes severe the crop can fail. This fertilizer prevents that from happening. 

Medium phosphate levels also help with pH buffering when used hydroponically.

This fertilizer also has no added organics so the results you get are solely from the nutrient composition. This allows more consistent results and also experimenting if you wish to add your own seaweed extract etc. to see what improves growth. It removes the guesswork if it is the mineral NPK or the organics that are driving results in your grow. 

We offer this fertilizer as a dry soluble blend that is mixed prior to fertilizing, rather than liquid A + B concentrates. This allows a longer more stable shelf life and an easier to use blend (only 1-part!), and also reduces shipping costs since you are only buying fertilizer, not added water.

The formula is mixed and watered into the substrate at 1.9 grams per Liter, and can be used hydroponically or conventionally via substrate. 8 oz makes 31 gallons. 

It's time to start growing your plants faster and better.

11-11-18 ratio. 25 lb bag. Select free shipping at checkout. Packaging is discreet.