LEVELLOCK® & SOS BUBBLER® BY HERBAFERTIL

Transform Urban Tree
Care from Planting to
Preservation

Protect root flares with LevelLock® and deliver deep-root hydration with SOS BUBBLER®. Keep municipal green spaces healthy, resilient, and thriving for decades.

Levellock

SOS Bubbler

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LevelLock® Planting System

A New Way to Prevent Newly Planted Trees from Sinking

Presjek sadne jame LevelLock sustava s drenažnom cijevi

LevelLock Planting System — principle of installation

Many newly planted trees are placed on loose soil. During the first months after planting, this soil can settle and the entire root ball may sink.

When this happens, the root flare becomes buried below the correct ground level. A depression forms around the trunk, irrigation becomes less effective and the tree may suffer from poor soil aeration and water shortage.

The LevelLock Planting System prevents this problem.

The root ball is placed on a firm soil platform that does not settle. This keeps the tree at the correct level and protects the root flare.

A circular trench around the root ball provides space and suitable soil for new roots. A deep-watering pipe distributes water directly around this developing root zone. HERBAFERTIL® units can also be placed inside the trench to support root growth and improve soil conditions.

The system provides

Stable position of the tree

Root flare protection

More efficient deep
irrigation

Better outward and
downward root
development

Improved long-term
stability and survival

SOS BUBBLER®

Deep-Root Irrigation for Existing Urban Trees

During extreme heat and drought, valuable urban trees can quickly begin to lose vitality.

Surface watering is often not enough. Water applied around the trunk may evaporate, run off compacted soil or remain close to the surface. The ground may appear wet while the deeper active roots remain dry.

SOS BUBBLER® solves this problem by delivering water directly into the deeper root zone.

Several access points are installed around the tree and connected to a water source. Through these points, water, air and liquid nutrients can be delivered closer to the active roots, where the tree can use them more efficiently.

The system can be used for existing trees that are not connected to permanent irrigation.

SOS Bubbler: podzemni spremnici uz korijenje u presjeku tla

SOS BUBBLER® — targeted delivery into the deeper root zone

It can be used:

As an urgent response when a tree already shows heat or drought stress
Preventively, before serious drying and canopy loss begin
For targeted delivery of water and liquid nutrients
To reduce losses caused by evaporation and surface runoff
To support the recovery of valuable mature trees

SOS BUBBLER® gives cities a fast and practical way to deliver water where the tree needs it most — directly into its deeper root system.

AquaVault Planting System

AquaVault Planting System by Herbafertil® creates a protected underground environment that improves water efficiency, moderates root-zone temperature and supports stronger tree establishment in arid and semi-arid climates.

Deep Root Development
Improved Water Efficiency
Root-Zone Thermal Protection

Explore AquaVault

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Herbafertil

Herbafertil is your trusted partner in tree care and cultivation. We are dedicated to providing practical solutions that support healthy root development, efficient irrigation and long-term tree vitality in urban landscapes and demanding environments.

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Financira Europska unija – NextGenerationEU

Project: “Herbafertil: Sustainable Planting of New Trees and Revitalisation of Existing Trees” is funded through the Croatian Agency for SMEs, Innovation and Investments (HAMAG-BICRO) under Grant Agreement No. NPOO.C1.1.2.R2-I4.01.0027, with the acknowledgement “Funded by the European Union – NextGenerationEU.” The project met all the prescribed criteria and was selected for funding.

The views and opinions expressed are solely those of the author and do not necessarily reflect the views of the European Union or the European Commission. Neither the European Union nor the European Commission can be held responsible for them.

Transform Urban Tree Care from Planting to Preservation