Dutch Pro - Original Grow - Hydro/Coco A&B HW


Size: 1 Litre
Sale price£19.99

New to Dutch Pro? Why not try our Hydro / Coco or Soil Starter Packs.

Dutch Pro - Original Grow - Hydro/Coco A&B - Hard Water

Dutch Pro are fast becoming one of the most popular nutrients on the market today. This is because growers the world over are finally finding out the secret of professional Dutch growers for themselves. After 30 years of producing some of the finest plant nutrients, Dutch Pro are at last getting the recognition they deserve in countries other than just Holland. Dutch Pro Original Grow Hydro/Coco A&B for Hard Water is a 2-part nutrient for use in all hydroponic systems and for plants grown in coco while they are in the vegetative growth cycle in hard water areas. Dutch Pro produces some of the fastest, healthy growing plants that you'll find anywhere, and the fact that they have spent the money on what's inside the bottle rather than on fancy packaging means that they're great value-for-money too. It’s no wonder that Dutch Pro are becoming so popular!

How Dutch Pro - Original Grow - Hydro/Coco A&B - Hard Water Works

Dutch Pro Original Grow A&B is a 2-part nutrient especially for use in the vegetative cycle. The Hard Water version has been optimised for use in hard water areas. Dutch Pro Original Grow can be used with all types of hydroponic systems and systems using coco. Dutch Pro Original Grow contains a sophisticated blend of ingredients to provide all the basic macro and micro nutrients that plants need for strong, healthy growth. Dutch Pro particularly recommend the use of their Multi Total, Take Root and Keep It Clean with this nutrient. Dutch Pro also produce their own pH down for Grow product, based on nitric acid rather than the usual phosphoric acid. This is because nitric acid works better in the growth stages.

To see the full Dutch Pro range, click here



Your choice of size of Dutch Pro Original Grow Hydro/Coco A and B for Hard Water


  • Dutch Pro - The choice of professional growers in Holland for over 30 years
  • Original Grow - formulated for use in the vegetative growth phase
  • Formulated to work brilliantly in hydroponic mediums and coco
  • Especially developed for hard water areas
  • Leaves no residue and contains no urea
  • Perfect for use with the range of Dutch Pro boosters and additives

How To Use

How to Use Dutch Pro - Original Grow - Hydro/Coco A&B - Hard Water

Fill your hydroponic system reservoir or coco feed water container with water and add equal amounts of Dutch Pro Original Grow for Hydro/Coco Part A and Dutch Pro Original Grow for Hydro/Coco Part B to the tank to achieve the required strength and mix well. Dutch Pro recommend a dosage of 2.5 to 3.5 ml/Litre of both part A and part B. Dutch Pro recommend using a syringe or beaker for accurate measurement of this product and a CF/EC/PPM meter such as the Bluelab Truncheon to check the TDS. Adjust as necessary. Next, add any additives and boosters you wish to use and again mix well. Adjust the pH of the solution to the required level using pH up or down as necessary. Dutch Pro suggest an optimum pH of 5.8 for best results. We recommend the use of a pH meter such as the Horticare pH meter to help accurately set the pH to the required level. It is recommended you renew the nutrient solution in your reservoir every 7 days.

Both parts of a 2-part nutrient are designed to be used together in equal amounts. Using only part A or part B, or using them in unequal amounts will result in a nutrient solution which is not properly balanced. This will almost certainly lead to your plants suffering from deficiencies.

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.

Manufacturer's recommended dosage rates are only for vigorously growing plants that are in the peak of health. Slower growing plants and those that are not 100% healthy will require a lower dosage rate. Learn more about how to control nutrient strength and pH levels in hydroponics in our blog guides: Control of Nutrient Strength Levels in Hydroponics and pH Control in Hydroponics

Dutch Pro - Original Grow - Hydro/Coco A&B - Hard Water recommended dosage: 2.5 - 3.5ml/Litre of both Parts A & B

Dutch Pro - Original Grow - Hydro/Coco A&B - Hard Water recommended pH: 5.8

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