Irrigation and Aeration

Deliver water and oxygen where trees need them most

Inlets and distribution systems that keep urban trees healthy and resilient.

Why irrigation & aeration matter

In paved environments, natural infiltration is blocked and oxygen is scarce. Without engineered irrigation and aeration, trees struggle to establish and decline prematurely. By directing water and air into the rooting zone, GreenBlue systems support rapid establishment and long-term tree health — even in heavily built-up streets. 

Why choose GreenBlue

Our irrigation & aeration range

Heavy-duty grille inlet – RootRain Hydrogrille

Twist-lock aluminium inlet that integrates with tree grilles, delivering water and air directly into the rooting zone.

Aeration inlets – RootRain ArborVent

Available in 100mm and 150mm diameters, these self-cleaning aluminium inlets provide reliable water and oxygen distribution into soil cells.

Urban inlet – RootRain Urban

Large-capacity, cost-effective inlet for urban tree pits, designed for easy installation and maintenance.

Original irrigation system – RootRain Metro

The most specified irrigation system since 1992, providing uniform distribution of water and air to young trees. 

Square inlet – RootRain Civic

Cast-aluminium square inlet with a lockable lid, ideal for high-footfall areas and public spaces.

Cast inlet – RootRain Precinct

Durable cast-aluminium inlet designed for paved landscapes, providing long-term irrigation and aeration access.

Where irrigation & aeration fit

Proven in practice

RootRain systems are proven across Europe, ensuring healthier establishment and longer-lived urban trees. 

Explore examples in our Case Studies Library or contact us for project references. 

Supporting components

Irrigation and aeration are part of the wider ArborScape portfolio — including guards, grilles, root management, and anchoring systems — delivering complete, buildable tree pit solutions.