Hydrogel for Plants

At Alquera you can buy hydrogel easily, from small packs of 200 grams to 20 kg bags. You can see the price of the different hydrogel formats when you select the format you want. The order is made directly through the web following the steps indicated, and the delivery arround Europe is made in 4-5 days with UPS. In case you have any doubt please contact us.

(1 customer review)
  • Delivered by UPS .
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SKU: ALS10041 Category:

Hydrogel is a water retainer. It is made of a superabsorbent polymer called potassium polyacrylate. A superabsorbent polymer is a material that has the ability to absorb large amounts of water and release it slowly afterwards. Hydrogel belongs to this type of material. It is a material that is presented dry and in the form of white crystals of 1-2 mm in size. Its main use is in agriculture. It is also known as solid rain, water retainer, potassium polyacrylate, water gel, water crystals.


Name: Hidrogel para Plantas. Poliacrilato de Potasio.
CAS: 25608-12-2

Appearance: Powder or Crystals
See physico-chemical properties hydrogel for plants.


Fine grain: Dry size between 0.8 and 1.2mm.
Medium grain: Dry size between 1.2 and 1.8mm. Hydrated they have an irregular size in crystals of 10-20mm.

You can select either a dry grain size of 0.8-1.2mm or 1.2-2mm. The technical characteristics of both are the same, the smaller grain size is intended for smaller plants or seedlings.


The hydrogel you find at Alquera is available in dry form. Regardless of the grain size, the hydrogel absorbs up to 300 times its weight in water.

  • 3.3 grams absorb 1L of water
  • 1Kg absorbs 303L of water
  • 5Kg absorbs 1515L of water
  • 20Kg absorb 6060 L of water


With the application of hydrogel you get the following advantages:

  • Improve sowing, improving seed germination rate and seedling transplant survival rate.
  • Roots: Promotes root development, increasing disease resistance.
  • Water saving: Increases water reserves in the soil.
  • Soil permeability: Improved use of soil organic matter
  • Fertilisation: Reduce fertiliser loss

Watch video: Water retention for hydrogel flooring.


The hydrogel is applicable in practically all situations where water is required. In this dossier you can see quantities and doses of hydrogel application->See Technical Dossier Hydrogel Application.

In this dossier you will find information according to use:

  • For pots and seedbeds, the dosage is 1.5-3Kg/m3 (1.5-3Kg of dry hydrogel per m3 of substrate), i.e. 1.5-3g/litre.
  • For the maintenance of roots for transplanting.
  • Transplanting trees and shrubs. See dosage and application in section
  • Application for already planted trees.
  • Application for fruit trees.
  • Application on turf and sod.
  • Application on structural soil mixed with gravel and earth.


If you want to know more, you can find more information about the Hydrogel for Plants in the following links.

Product Ref. Document
Hydrogel for Plants ALQ0003 Material Safety Data Sheet MSDS:    EN    EN   DE   FR&nbsp  IT
Hydrogel for Plants ALQ0003 Technical specifications
You can also see the Material Safety Data Sheets (MSDS) of all products in this section: MSDS
Weight 1 kg
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Grain size

1 review for Hidrogel para Plantas

  1. SERGIO -

    Absorbs a lot of water, good product to keep plants hydrated for a longer period of time. Thank you!

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