Avoid dry and struggling plants – and spend your time on something other than daily watering.
With a self-watering system in GRÖNFELD planters, your plants receive an even supply of moisture exactly when they need it. The integrated water reservoir supplies water from below and encourages deeper root growth as well as stronger and healthier plants. The system reduces the risk of both overwatering and underwatering, reduces maintenance and can significantly reduce water consumption.
The result is lush, thriving plants with minimal effort – ideal for both private gardens and professional environments.
Below you will find further information about our solutions. The self-watering sets can be selected as accessories on the planters with self-watering.

Selfwatering-kit 4040
WaterUps self-watering system for GRÖNFELD Planter PRO 45x45 cm
See planters with self-watering
Description
The WaterUps 400 Wicking Kit contains all the necessary system components. The wicking kit is designed for wicking beds with internal wall dimensions of 400 mm x 400 mm. The liner has welded corners.
Contents
The self-watering set contains the following:
- 1 x WaterUps Reservoir Base
- 1 x WaterUps Wicking cells
- 1 x WaterUps filler pipe with cap
- 1 x 2L bag of perlite
Specifications
- Material – WaterUps products: Recycled polypropylene
- Country of manufacture: Australia
- External dimensions: 400 mm L x 400 mm W x 130 mm H
- Weight: 2.2 kg
- Water reservoir capacity: 15 litres

Selfwatering-kit 1240
WaterUps self-watering system for GRÖNFELD Planter PRO 45x125 cm
Description
The WaterUps 1240 Wicking Kit contains all the necessary system components. The wicking kit is designed for wicking beds with internal wall dimensions of 1200 mm x 400 mm. The liner has welded corners.
Contents
The self-watering set contains the following:
- 1 x WaterUps Reservoir Base
- 3 x WaterUps Wicking cells
- 1 x WaterUps filler pipe with cap
- 4 x WaterUps connecting clips
- 1 x 6L bag of perlite
Specifications
- Material – WaterUps products: Recycled polypropylene
- Country of manufacture: Australia
- External dimensions: 1200 mm L x 400 mm W x 150 mm H
- Weight: 8 kg
- Water reservoir capacity: 52.8 litres

Selfwatering-kit 0880
WaterUps self-watering system for GRÖNFELD Planter PRO 85x85 cm
Description
The WaterUps 0880 Wicking Kit contains all the necessary system components. The wicking kit is designed for wicking beds with internal wall dimensions of 800 mm x 800 mm. The liner has welded corners.
Contents
The self-watering set contains the following:
- 1 x WaterUps Reservoir Base
- 4 x WaterUps Wicking cells
- 1 x WaterUps filler pipe with cap
- 5 x WaterUps connecting clips
- 1 x 8L bag of perlite
Specifications
- Material – WaterUps products: Recycled polypropylene
- Country of manufacture: Australia
- External dimensions: 800 mm L x 800 mm W x 150 mm H
- Weight: 9 kg
- Water reservoir capacity: 60 litres
How to assemble the reservoir liner

1. Fit the liner and cells
Fit the waterproof liner and insert the cells into your GRÖNFELD planter. Finish by installing the filler pipe.
2. Perlite and soil
Open the bag of perlite and lightly sprinkle water over the perlite grains to prevent them from blowing away. Distribute the perlite evenly in all four feet of each of the cells. Then add good-quality soil.


3. Fill with water
How often you need to refill the water reservoir depends on which plants you grow, the time of year and the amount of natural rainfall.
In our experience, it can be up to four weeks before the planter needs refilling.
We recommend letting the water level in the wicking bed fall to at least 1/4 full before you refill. This helps to ensure good aeration of the soil.