Support healthy tree establishment with our Tree Irrigator Bag – a slow-release watering system ideal for young trees in landscapes, parks, and urban spaces. Each UV-stabilised bag delivers 75L of water directly to the roots over 2–6 hours, reducing waste and promoting strong root growth.

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full description

The Tree Irrigator Bag is a simple, yet highly effective watering system designed to support healthy tree growth by delivering water slowly and directly to the root zone. Ideal for new tree planting projects, this bag ensures young and established trees receive deep watering, reducing water waste and promoting stronger root development.

Constructed from durable green polyethylene with scrim reinforcement, and equipped with black polypropylene straps and robust nylon zippers, the bag is UV stabilised to resist sun damage, making it perfect for outdoor use throughout the year. It fits trees with trunk diameters between 3cm and 8cm in its single-bag form, and for larger trees (10cm to 20cm diameter), a convenient Double Bag setup (two single bags zipped back-to-back) is available.

The irrigator bag releases water gradually through two controlled outlets over 2 to 6 hours, depending on soil type and weather conditions, ensuring deep soil penetration and preventing runoff or evaporation. It holds approximately 75 litres of water per single bag and can be refilled once a week for optimal tree hydration.

Watering Capacity and Frequency Chart
Single Bag - 3 – 5 cm (1 – 2 inches) Trunk Diameter (Caliper) - 75 Litres Approximate Water Capacity - 1 Fill/Week Recommended Fills/Week

This watering schedule ensures trees receive consistent moisture, supporting healthy root establishment and growth.

Applications and Benefits
Perfect for tree planting in residential gardens, commercial properties, urban streets, and public green spaces
Ideal for councils, local authorities, landscaper contractors, and professional gardeners looking to establish or maintain healthy trees
Provides slow, controlled irrigation that promotes deep root growth and reduces water wastage
UV stabilised for durability and repeated use outdoors
Easy to fill with a hose up to 8cm diameter through the wide opening
Simple installation with adjustable straps fitting trunks from 3cm to 8cm diameter (single bag) or up to 20cm diameter (double bag)
Helps improve survival rates of newly planted trees by ensuring consistent moisture delivery

technical information

Material | Green polyethylene with scrim reinforcement

Straps & Zippers | Black polypropylene straps and robust nylon zippers

Dimensions | 76cm tall x 46cm wide (when full)

Tree Diameter (Caliper) | Single Bag: 3cm–8cm | Double Bag: 10cm–20cm

Water Capacity | Approx. 75 litres per single bag

Water Release Time | 2–6 hours via two controlled outlets

Fill Opening | Fits hose up to 8cm diameter

UV Protection | Yes – UV stabilised for outdoor use

Installation | Wrap around tree base and secure with straps; double bag by zipping two together

Recommended Watering Frequency | 1 fill per week per bag

Applications | Tree planting in gardens, parks, commercial landscapes, street trees, and public green spaces