RETENTIS® in Home & Garden

RETENTIS® transforms your garden and potted plants into true water and nutrient reservoirs: In just a few simple steps - mixing, planting and watering - the 100% natural lignin hydrogel increases the moisture storage capacity of your soil by up to 10 liters of water per kilogram of RETENTIS® and reduces watering requirements by up to 40%. During dry periods, RETENTIS® releases moisture and nutrients to the roots as required, promotes healthy root growth and ensures lush greenery on balconies, patios and in flower beds. At the same time, RETENTIS® turns into nutrient-rich humus in the soil, improving the structure and fertility of your garden beds in the long term.

Icon Description
Icon Description
Icon Description

Typical applications & dosages

Pot & raised bed substrates:
 10 – 20 g / liter of soil or substrate; mix evenly

New lawn / reseeding:
 100 g / m²; apply dry, approx. 10 cm deep

Perennials & Ground Covers:
 200 g / m²; mix into the top 20 cm

Planting pits (shrubs, trees, etc.) :
 10 kg / m³; mix excavated material thoroughly with RETENTIS®

Root Protection Gel: Mix 0,5 - 0,7 kg with 10 liters of water. Wait 10-15 minutes until the granules have absorbed the liquid, stirring several times. Then immerse the roots for a few seconds.

Tip: Do not add RETENTIS® pure to the planting hole, but mix it with soil/substrate and mix well - this way the granules/gel are optimally distributed around the roots.

Pro tip: Cover the treated substrate or area with about 2-3 cm of untreated soil or substrate - this way RETENTIS® remains under the surface and well protected.

Extra tip: Incorporate fertilizer at the same time! Mix your tried and tested fertilizer directly into the soil together with RETENTIS®. It binds the nutrients and releases them continuously over weeks to the plant roots - no washing out, no nutrient shock.

🧮 Calculate the exact requirement for your project right below with the RETENTIS®Calc Tools.

Hand hält eine Portion RETENTIS®-Wasserspeichergel von Agrobiogel vor frisch gepflanzten Setzlingen im Boden, mit einem Fragezeichen als Hinweis auf die Berechnung der benötigten Menge (RETENTIS® Calc).

RETENTIS®-Calc

The RETENTIS®Calc tools provide you with the perfect dosage, the water-saving effect and the right packaging size in seconds. Simply enter the area or number of plants in RETENTIS®Calc for the relevant application area or select a round or square container in RETENTIS®Calc for planters and get started.

To the calculation tools →
Illustration showing how to use RETENTIS® water storage gel: 1. Mix gel with soil or substrate, 2. Plant, 3. Water.

Easy to use

Work RETENTIS® evenly into the dry soil. The rule of thumb is 20 g of granules to 1 l of potting soil.

Three steps:
1 Mixing · 2 Planting · 3 Watering

Extra tip:
Incorporate fertilizer at the same time
Mix your tried and tested fertilizer directly into the soil together with RETENTIS®. It binds the nutrients and releases them continuously over weeks to the plant roots - no leaching, no nutrient shock.

Before After

Why RETENTIS®

💧 Stores up to 10 liters of water per kilogram of granules and releases it back to the plants in dry conditions.
💦 Saves up to 40% irrigation water
⏳ Works in the soil for 3 – 5 years , completely without microplastics.
🍂 Promotes humus formation and soil structure.
⚖️ pH-neutral - RETENTIS® does not change the pH of the soil and can be mixed with other additives.
✅ is approved for organic farming .

Image: Basil after 3 weeks without watering, left with 2% RETENTIS®, right just soil. Move the slider and see the difference!

More about the RETENTIS® effect →

Further areas of application

Discover other areas of application for RETENTIS® and find the perfect solution for your project

Find more application areas →