Make irrigation easier and more effective!

H2Gro, the unique wetting and conservation agent.

  • Advantages
  • Description
  • Recommended rates
  • Downloads
  • Improved water management in pots and containers: quick and effective watering.
  • Improved nutrient uptake: plants can grow into 100% of the growing medium volume.
  • Effective re-wetting of substrates, including during transportation to garden centers and customers.
  • Improved plant quality: H2Gro stimulates smooth and healthy growth, thanks to balanced moisture concentration throughout the growing medium.
  • Prevents peaks in irrigation and avoids waterlogging.

H2Gro is available in packaging sizes from 10 l cans up to 200 and 1000l IBC.

The product is recommended to use in fresh produced growing media. But also for spraying application during growing periods. The new available H2Gro will help to increase plant quality by improved spreading of water (and nutrients) in the entire pot.

At nurseries, H2Gro can also be applied by using Dosatron or other dosage equipment

H2Gro works, depending on the applied dosage, up to 12 months in culture. Even after several re-wettings.

Recommended rates

Recommendations H2Gro and directions for use

Growing system

Incorporated in potting soil

Drench after potting


Rate per cubic meter

Rate per 100 liter

Cultivation duration up to 12 months (CNS crops)

150 ml

100 – 150 ml

Maximum longevity (6 - 12 months) Severely water repellent

Cultivation duration up to 6 months  (pot plants)

100 – 125 ml

60 – 100 ml

Medium longevity (2 - 6 months) Moderately water repellent

Cultivation duration up to 6 weeks (bedding plants)

50 – 75 ml

40 – 50 ml

Short term activity (2 – 6 weeks) Moderately water repellent

Application during cultivation


Application rate

Directions for use

Rate per 1000 liter

With irrigation

5 ml

Daily feeding

Prior to consumer phase or shipment

500 - 1000 ml

Drench containers, hanging baskets and trays, prior to shipment

Interior plantscapes

500 - 1000 ml

Drench containers, handing baskets and planters

Misting cuttings

150 ml

Spray freshly stuck cuttings with a very fine mist to the point of run off.



Mix H2GRO with water before application. Under dry conditions increasing water volume aids movement into media.

Contact your ICL Specialty Fertilizers advisor for specific questions and a tailor-made recommendation.




As circumstances can differ and as application of products is beyond our control, ICL Specialty Fertilizers cannot be held responsible for any negative results. With this publication, all previously given recommendations expire.

Before a new rate, product or application method is used, a small-scale trial is recommended.

Ask your local ICL Specialty Fertilizers dealer or the ICL Specialty Fertilizers representative in your country or area for more information or recommendations. Consult for your contact in the region.


H2Gro is a unique wetting agent specially developed and produced by ICL Specialty Fertilizers for use in growing media in ornamental horticulture crops. H2Gro's 3 in 1 action improves water uptake, water distribution in the substrate and re-wetting of the substrate.